In ms. Oaks class 5/12 of the students wear glasses, 2/9 of the students wear earrings, 2/18 of the students wear hats, and 1/4 of the students wear a watch. No one wears more than one of these items. 4 students wear hats.


A. How many students are in ms. Oaks class?


b. Determine how many students wear each type of item.



please explain how you got the answer, im having trouble figuring out how to find the answer

Answers

Answer 1

There are 36 students in Ms. Oaks' class. The number of students who wear each type of item is: Glasses: 15 students, Earrings: 8 students, Hats: 4 students and Watch: 9 students

Let the total number of students in Ms. Oaks' class be x.

a) We know that 2/18 of the students wear hats, which is equivalent to 1/9 of the students. We are also told that 4 students wear hats. So, we can set up an equation:

1/9 * x = 4

Solving for x, we get:

x = 36

Therefore, there are 36 students in Ms. Oaks' class.

b) We can now use the information given to determine how many students wear each type of item.

- Glasses: 5/12 of the students wear glasses, which is equivalent to:

(5/12) * 36 = 15 students

- Earrings: 2/9 of the students wear earrings, which is equivalent to:

(2/9) * 36 = 8 students

- Hats: We are told that 4 students wear hats.

- Watch: 1/4 of the students wear a watch, which is equivalent to:

(1/4) * 36 = 9 students

Therefore, the number of students who wear each type of item is:

Glasses: 15 students

Earrings: 8 students

Hats: 4 students

Watch: 9 students

To know more about number, visit:

https://brainly.com/question/12816397#

#SPJ11


Related Questions

A group of friends met for lunch and shared 4 small pizzas. Each person got 1 1/3 pizzas. How many friends went for lunch?

Answers

Answer:

3 friends

Step-by-step explanation:

4 / 1 1/3 = 4 / 4/3 = 4 x 3/4 = 3 friends

Hope that helps!

Answer:

3 friends.

Step-by-step explanation:

Divide 4 pizzas by 1 1/3. This will get you 3. You can check your work by multiplying 3 by 1/13, which gets you 4 pizzas, therefore proving this answer as correct.

a square has side length 3 1/2 inches the scale factor of 5/2 was used to create a new square what is the side length of the new square

Answers

The side length of the new square is 38.75.

Calculation:-

Scale factors = measurement of the brand new form ÷ measurement of the authentic shape.

Scale factor = 5/2

New measurement = Scale factor × original measurement

                                 = 5/2 × 3 1/2

                                = 38.75

               

A scale factor is defined as the ratio between the scale of a given original object and a brand new item, that is its representation however of an exceptional length (bigger or smaller). for example, if we've got a rectangle of aspects 2 cm and four cm, we will extend it with the aid of multiplying every facet by quite a number, say 2.

The scale factors may be calculated whilst the new dimensions and the unique dimensions are given. The primary system to discover the size element of a determine is: Scale issue = size of the brand new form ÷ measurement of the scale factors

Learn more about scale factors here:-https://brainly.com/question/25722260

#SPJ1

what is the value of (-4)(3)(-2)(-2)

Answers

On solving the provided we can say that -  by the help of BODMAS the answer is \(-48\)

What is BODMAS?

BODMAS and PEDMAS are both names for it in various places. This stands for exponents, parenthesis, division, multiplication, addition, and subtraction. The BODMAS rule states that parentheses must be answered before powers or roots (that is, of), divisions, multiplications, additions, and lastly subtractions. The BODMAS rule states that the degree (52 = 25), parenthesis (2 + 4 = 6), any division or multiplication (3 x 6 (bracket response) = 18), and any addition or subtraction (18 + 25 = 43) come before any other operations

Here,

we are given

(-4)(3)(-2)(-2)

-48

To know more BODMAS visit:
https://brainly.com/question/29795897

#SPJ1

In the diagram, MZACB = 65. mzECD = А E B C С D​

In the diagram, MZACB = 65. mzECD = E B C D

Answers

Answer:

m<ECB = 65°

Step-by-step explanation:

<ACB and <ACD are vertical angles. That means they are congruent and have equal measures.

m<ECB = 65°

Which equation represents a line of best fit for the set of ordered pairs?
{(1, 16), (2, 20), (3, 24), (4, 30), (5, 36)}
A. y = 5x + 10
B. y = 10x + 5
C. y = -5x + 10
D. y = -10x +5

Answers

Answer:

Here’s the answer! Best of luck.

Step-by-step explanation:

Which equation represents a line of best fit for the set of ordered pairs?{(1, 16), (2, 20), (3, 24),

A warehouse has a height of 8\frac{1}{2}8 2 1 ​ meters, length of 120120 meters, and width of 20\frac{3}{10}20 10 3 ​ meters

Answers

Answer:

10,353m³

Step-by-step explanation:

We can look for the volume of the warehouse since we are not told what to look for

Volume of the warehouse = length * width * height

Given

Length  = 120m

Width = 20 3/10 = 203/20 m

Height = 8 1/2m = 17/2 m

Volume of the warehouse = 120 * 203/20 * 17/2

Volume of the warehouse = 6 * 203 * 17/2

Volume of the warehouse = 3 * 203 * 17

Volume of the warehouse = 10,353 cubic metres

Hence the volume of the warehouse is 10,353m³

how does one do this equasion 6234653928+294292342-424624642x16515615615165161x1156+6466456

Answers

The given Expression simplifies to -8.1069556e+27

What is BODMAS rule?

BODMAS stands for Bracket, Of, Division, Multiplication, Addition, and Subtraction. A mathematical expression's order of execution is explained using the BODMAS.

Given an equation to solve,

6234653928 + 294292342 - 424624642 x 16515615615165161 x 1156 + 6466456

Let us consider this Expression as A + B - C * D * E + F, with the corresponding terms being equal

By, the BODMAS rule,

First step: Multiply C, D, E. Let this be G

Now, the equation will look like this: A + B - G + F

Second step: We can add and subtract according to the signs now

On solving, the expression simplifies to -8.1069556e+27

To learn more about BODMAS, refer to the link below:

https://brainly.com/question/29626866

#SPJ1

Match the Parallel line of y=-1/2x-2

Answers

The family of all linear equations that are parallel to y=-1/2x-2 is defined as:

y = (-1/2)*x + b

Such that b ≠ -2.

Which lines are parallel to the given one?

We know that a general linear equation is written in the slope-intercept form as:

y = m*x + b

Where m is the slope and b is the y-intercept.

We know that two linear equations are parallel if and only if the lines have the same slope and a different y-intercept.

So the family of lines parallel to:

y = (-1/2)*x - 2

Are of the form:

y = (-1/2)*x + b

Where b ≠ -2.

All these lines are parallel to the given ones.

Learn more about linear equations:

https://brainly.com/question/1884491

#SPJ1

Please help me with this question , which panda was heavier when they were born

image shown

Please help me with this question , which panda was heavier when they were born image shown

Answers

Answer:

Kappa

Step-by-step explanation:

Mochi weighed 1 pound when he was born, and Kappa weighed 2 pounds when he was born. Therefore, Kappa is the answer.

Answer: kappa

Step-by-step explanation: the chart goes

0, 2, 4, 6, 8...etc it goes by two’s.

The track coach at the local high school wanted to know what the average time was for the 100-yard dash for his track team. One day he timed them. He got the following times for the twelve members of the track team: 11, 10.9, 10.8, 9.9, 9.7, 9.8, 10.1, 10.2, 9.8, 10.6, 10.5, and 11.5 seconds. To the nearest tenth, what is the average length of time it takes a member of the track team to complete the 100-yard dash?


I'm mainly asking because I think I have the answer, but I'm not sure I did my math right, so I'm asking to see if someone else gets the same answer I got.​

Answers

To find the average time for the 100-yard dash for the track team, we need to add up all of the times and divide by the total number of members. So, we have:

(11 + 10.9 + 10.8 + 9.9 + 9.7 + 9.8 + 10.1 + 10.2 + 9.8 + 10.6 + 10.5 + 11.5) / 12

= 125.3 / 12

= 10.44 seconds (rounded to the nearest tenth)

Therefore, the average length of time it takes a member of the track team to complete the 100-yard dash is 10.4 seconds (rounded to the nearest tenth).

b.The branch manager wants to improve the service and suggests dispatching buses every 0.5 minute. She argues that this will reduce the average traveling time (a round trip) to 3.5 minutes. Is she correct? (Enter "Yes" or "No" in the following blank). c. Following the branch manager's suggestion (dispatch busses every 0.5 min), what will the average traveling time be? average travelling time____ (mins) (enter the numbers only)

Answers

(b) No, The branch manager's argument that dispatching buses every 0.5 minutes will reduce the average traveling time (a round trip) to 3.5 minutes is not correct.

To calculate the average time, we need to consider the time it takes for the bus to travel to the airport and back, as well as the time spent waiting for the bus.

If buses are dispatched every 3 minutes, and the average traveling time (a round trip) is 21 minutes, it means that passengers spend 18 minutes waiting for the bus (21 minutes - 3 minutes of traveling time).

If buses are dispatched every 0.5 minutes, the waiting time will be significantly reduced. However, the traveling time remains the same at 21 minutes for a round trip.

Therefore, the average traveling time will not be reduced to 3.5 minutes but will remain at 21 minutes (assuming the traveling time remains constant).

(c) The average traveling time, following the branch manager's suggestion of dispatching buses every 0.5 minutes, would still be 21 minutes.

Learn more about Average Time:

https://brainly.com/question/12190190

#SPJ4

Complete question:

The Avis Company is a car rental company and is located three miles from the Los Angeles airport (LAX). Avis is dispatching a bus from its offices to the airport every 3 minutes. The average traveling time (a round trip) is 21 minutes.

(a) The branch manager wants to improve the service and suggests dispatching buses every 0.5 minute. She argues that this will reduce the average traveling time (a round trip) to 3.5 minutes. Is she correct? (Enter "Yes" or "No" in the following blank).

c. Following the branch manager's suggestion (dispatch busses every 0.5 min), what will the average traveling time be? average travelling time ____(mins) (enter the numbers only)

need help asap at this question so what's the area of the shaded shape ​

need help asap at this question so what's the area of the shaded shape

Answers

Answer:

Step-by-step explanation:

area of shaded region=area of whole region-area of white space

=9×13-5×[13-(3+2)]

=117-5×8

=117-40

=77 m²

The difference of two numbers is 18, and their sum is 90.
Find the two numbers

Answers

Answer:

54 and 36

Step-by-step explanation:

when we add 54 and 36 we get 90 and when we subtract 54 from 36 we get the difference 18

Answer:

54 and 36

explanation

(6 + 3) = (4-5) = 18
Evaluate the following numerical expressions

Answers

Answer:

18

-9

30

Step-by-step explanation:

did on edge :)

Answer:

Evaluate the following numerical expressions.

6 + 3 • 4 =  18

(6 + 3) ÷ (4 – 5) = -9

6 + 23 • 3 = 30

Step-by-step explanation:

i took the test

The number of hours of sunshine in Barbados for successive days during a and 11.8. Find the daily certain week were 11.1, 11.9, 11.2, 12.0, 11.7, 12.9 average. The following week the daily average was 11 hours. How many more hours of sunshine were there the first week than the second?​

Answers

Answer:

5.6

Step-by-step explanation:

11*7=77

11.8*7= 82.6

82.6-77=5.6

Determine the radius of convergence of the following power series. Then test the endpoints to determine the interval of convergence ∑(16kx)k The radius of convergence is R= Select the correct choice below and fill in the answer box to complete your choice. A. The interval of convergence is {x:x= (Simplify your answer. Type an exact answer.) B. The interval of convergence is (Simplify your answer. Type an exact answer. Type your answer in interval notation.)

Answers

According to the question The radius of convergence is 1 and the interval of convergence is \((-1, 1]\).

To find the radius of convergence of the power series \(\(\sum (16kx)^k\)\), we use the ratio test. The ratio test states that if the limit of the absolute value of the ratio of consecutive terms is \(\(L\)\), then the series converges if \(\(L < 1\)\) and diverges if \(\(L > 1\)\).

Let's apply the ratio test to the given series:

\(\[L = \lim_{{k \to \infty}} \left| \frac{{(16(k+1)x)^{k+1}}}{{(16kx)^k}} \right|\]\)

Simplifying the ratio, we get:

\(\[L = \lim_{{k \to \infty}} \left| \frac{{16(k+1)x}}{{16k}} \right|\]\)

Taking the absolute value and simplifying further, we have:

\(\[L = \lim_{{k \to \infty}} |x| \cdot \frac{{k+1}}{{k}} = |x|\]\)

For the series to converge, \(\(L\)\) must be less than 1. Therefore, we have:

\(\[|x| < 1\]\)

This means the radius of convergence is 1, i.e., \(\(R = 1\).\)

To determine the interval of convergence, we test the endpoints \(\(x = -1\)\) and \(\(x = 1\).\)

When \(\(x = -1\)\):

\(\(\sum (16k(-1))^k = \sum (-16)^k\)\)

This series alternates between positive and negative terms, and it is an alternating series. By the alternating series test, this series converges.

When \(\(x = 1\)\):

\(\(\sum (16k(1))^k = \sum 16^k\)\)

This series does not satisfy the necessary condition for convergence since the terms do not approach zero as \(\(k\)\) goes to infinity. Therefore, it diverges.

Hence, the interval of convergence is \(\((-1, 1]\)\) in interval notation.

To know more about convergence visit-

brainly.com/question/32520091

#SPJ11

The coffee shop is offering every 5th drink for 40% off. If my 9 friends and I each order a coffee that cost $4. 00 and we pay together, what will our total be?

Answers

$When you calculate the value of the first five you get $18.40 when you add the remaining total you get a final answer of $ 34.40

Help please! Will give brainlist for correct answer with steps. If you’re a troll I will report!

Help please! Will give brainlist for correct answer with steps. If youre a troll I will report!

Answers

Answer:

x²-10x+34=0. here u go I'm 12

What is a good score on the I-Ready Diagnostic?

Answers

Typically, a score in the top 25th percentile for a student's grade level is considered to be a strong performance, while a score in the bottom 25th percentile may indicate a need for additional support.

The I-Ready Diagnostic is a widely used assessment tool that measures student proficiency in math and reading. It's commonly used in K-12 schools to help teachers and administrators track student progress and identify areas where students may need additional support.

Here's a more detailed explanation: A "good score" on the I-Ready Diagnostic depends on several factors, such as the student's grade level, the state's standards, and the student's past performance.

It's important to note that the I-Ready Diagnostic is designed to provide a snapshot of a student's current skills and understanding, and it should not be used as the sole measure of a student's ability.

A student's score on the I-Ready Diagnostic can change from year to year based on their progress and the new material they are exposed to.

to know more about diagnostic refer here

https://brainly.com/question/12814536#

#SPJ11

In a regression analysis, the error term ε is a randomvariable with a mean or expected value of
a) Zero
b) One
c) any positive value
d) any value

Answers

In a regression analysis, the error term ε is a random variable with a mean or expected value of zero. The correct option is a.

What is the mean?

The average of a group of variables is referred to as the mean in mathematics and statistics. There are several methods for calculating the mean, including simple arithmetic means (adding the numbers together and dividing the result by the number of observations), geometric means, and harmonic means.

Given:

Analysis is a regression analysis.

And the error term in regression analysis:

The error term, which refers to the total of the deviations within the regression line and explains the discrepancy between the theoretical value of the model and the actual observed results, denotes the margin of error inside a statistical model.

ε = Epsilon or error term.

The variation in the dependent variable that the independent factors do not explain is taken into account by the error term.

The values of the error term should be determined by random chance.

The average value of the error term must be equal to zero in order for your model to be impartial.

Therefore, error term is zero.

To learn more about the mean;

brainly.com/question/13451489

#SPJ1

a store offered a price discount of 20% on all items over one weekend. by what fraction of the discounted price of an item did the price increase after the weekend?

Answers

The discounted price of an item did the price increased after the weekend by a fraction of 1/5.

A fraction can be referred to or considered as a divisional representation of a whole number or a percentage, usually represented as a bigger numerical. A fraction denotes the representation of a number in such a way that the meaning or the accuracy of the number is not disturbed, but is shown differently. One-fifth is 20 percent of the total five parts of a number, and thus, the price increased by 1/5th after the weekend.

Learn more about fractions here:

https://brainly.com/question/10354322

#SPJ4

1. Which word corresponds for likelihood when probability = 1/2? *

Answers

Answer:

Step-by-step explanation:

Half

50 percent.

1 divided by 2?

A fast food meal contains 70 g of fat. What percent of the recommended daily allowance of 20 g is?

Answers

Answer:

\(350%\)%

Step-by-step explanation:

\(\frac{70}{20}\) x 100% = 350%

Evaluate yz + x² x=3.2, y=6.1, z=0.2

Answers

Answer:

Step-by-step explanation:

To evaluate the given expression, we need to substitute the given values for x, y, and z. The expression becomes:

yz + x²

Substituting the given values, we get:

(6.1 * 0.2) + (3.2^2)

This simplifies to:

1.22 + 10.24

Therefore, the value of the expression is approximately 11.46.

11.46

gimme brainlyest gang

PLEASE HELP!!

The diagram shows the cross-section ABCD of a sculpture in the shape of
a prism
with perpendicular height 9 cm.
AB = 14 cm, CD = 8cm, AD = 12cm and BC = 10cm
The height of the prism is also 9 cm.
What is the total surface area of the sculpture in cm2?
Type each step of your working on a separate line.

PLEASE HELP!!The diagram shows the cross-section ABCD of a sculpture in the shape ofa prismwith perpendicular

Answers

Answer:

99   (cm^2)

Step-by-step explanation:

Perpendicular to the AB segment at points D and C, the graph is divided into two triangles and a rectangle.

The area of the middle rectangle is equal to 8*9=72. The hypotenuse of the right triangle is 10cm, and one of the right sides is 9cm, so the other side is SQRT (10^2-9^2) = SQRT (19).

One side of the left triangle is 9cm long and the other side is 14-8-sqRT (19) = 6-sqRT (19) cm.

Then, add the area of the three parts.

72+9*sqrt(19)/2+9*(6-sqrt(19))/2=99    (cm^2)

if two cards are drawn from a standard 52 deck of cards without replacement, what is the probability of getting a king on the second card, if the first card was a 10?

Answers

0.6%  is the probability of getting a king .

What is probability ?

The likelihood that something will occur is the foundation of it. The justification for probability serves as the basic foundation for theoretical probability.A coin is tossed, for instance, and the theoretical likelihood of receiving a head is 1 in 2.

Probability of K from full 52 card pack = 4/52 = 1/13

Probability of A from the remaining 51 cards = 4/51

“And" in probability means you Multiply.

1/13 x 4/51 = 4/663 = 0.6%

Learn more about probability

brainly.com/question/11234923

#SPJ4

it is any equation in the form f of x = ax to the second power + bx + c where a b and c are real numbers and a not equal to zero . is t a linear equation, quadratic,rational​

Answers

Answer:

The answer to this depends on the accuracy of the way this is transcribed.  If the value on the left side of the equals sign is indeed x, then it would be a rational equation.  If it is meant to be another scalar value though, then this would be a quadratic equation.

Step-by-step explanation:

This depends on the what is on the other side of the equals sign.  If it is a scalar value, then you are guaranteed a proper quadratic equation.  In the example given though:

\(x = ax^2 + bx + c\)

This is not actually true.  In this example, we can divide both sides by x, giving us a very different equation:

\(x = ax^2 + bx + c\\1 = ax + b + c/x\\ax + c/x = 1b\)

and this equation actually a rational one.

BRAINLIES AND 30 POINTS PLS HELP

. Why is using iodine helpful when looking at cells?

Answers

Answer:

As a biological stain, iodine is useful for studying plant cells because it stains starch blue-black and in animal tissue, it can help in the demonstration of nuclei and cell membranes

Answer: Iodine is also a useful stain. When studying plant cells, iodine is used. Because it is a starch indicator, it reacts with starch and turns blue-black. Iodine can also be used as a stain on animal cells, making the cell membrane and nucleus appear more visible

Step-by-step explanation:

An airline estimates that the probability that a random call to their reservation phone line result in a reservation being made is 0.31. You want to estimate the probability that exactly one of the next four calls result in a reservation being made. Describe the design of a simulation to estimate this probability. Explain clearly how you will use the partial table of random digits below to carry out your simulation.

Answers

The probability that exactly one of the next four calls results in a reservation being made is 40.75%

What is probability?

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.

Here, we have

A random call to their reservation phone line results in a reservation being made is 0.31

Now, we find

Exactly one call gets resevervation = 4 * (1-0.31)3(0.31)

= 0.4075 = 40.75%

Now we can simulate an experiment by using random numbers from 0 to 100,000 as probability values between 0 and 31,000 are p to reservation otherwise they don't.

Hence, the probability that exactly one of the next four calls results in a reservation being made is 40.75%

To learn more about the probability from the given link

https://brainly.com/question/24756209

#SPJ4

Please anything helps. Bisect each angle below
(Don’t know what I was doing on the first one)

Please anything helps. Bisect each angle below(Dont know what I was doing on the first one)

Answers

Answer:

U are doing right but don't move ur compass when u are doing the line (i mean opposite line)otherwise ur line at not bisect

Other Questions
It is important to extract the Eclipse executable file from the .zip file in the Programs folder of your C:\ drive.FalseTrue the monroe doctrine was a a binding pledge on each subsequent presidential administration b a commitment by the united states to aid internationalism c a striking new departure in american foreign policy d an expression of the illusion of deepening american isolationism from world affairs Lewis High School is going to select a committee. The committee will have a faculty member, a male student, a female student, and a parent. Here are the positions and the people interested in each.Position People interested Faculty members Dr. Wright, Mr. Torres, Mrs. Lee, Ms. Reed Male students Jose, Ali, Tony Female students Donna, Keiko, Rita Parent Dr. Wilson, Dr. Patterson, Ms. Rivera, Mrs. Ross, Ms. Bell A bicycle company produces y bicycles at a cost represented by the polynomialy2 + 14y + 700,000. The revenue for y bicycles is represented by 6y2 + 14y + 400. Find apolynomial that represents their profit. If the company only has enough materials make400 bicycles, should it make the bicycles?The bicycle company's profit is given by the polynomialIf the company can only make 400 bicycles, they will (select) money. more than half of our antibiotics are more than half of our antibiotics are synthesized in laboratories. produced by bacteria. produced by fungi. produced by fleming. produced by eukaryotic organisms. Which whole number property is represented?10+ 0 = 10 Why does the solubility of many substances increase with temperature? (Remember what an increase in temperature means on a microscopic scale.) FLY and SLY are adjacent angles. If m FLS = 120, m FLY = (3x+7), and m SLY (7x+3), what is the value of x. Show math work and answer 10 POINTS (ignore the bottom and top questions pls lol) Please Help! A bag contains four green marbles and five yellow marbles. You randomly select three marbles. What is the probability that all three marbles are green when (a) you replace each marble before selecting the next marble, and (b) you do not replace each marble before selecting the next marble? Write each probability as a decimal rounded to the nearest thousandth. Then compare the probabilities. Sami has a bag full of 4900 marbles of three different colors which include blue, green and black in the ratio 16:13:20. Find the number of each colored marbles in her bag. Lydia and john wickham filed jointly in year 1. They divorced in year 2. Late in year 2, the irs discovered that the wickham's underpaid their year 1 taxes by $2,000. Both lydia and john worked in year 1 and received equal income but john had $2,000 less tax withheld than did lydia. Who is legally liable for the tax underpayment? The peak time and the settling time of a second-order underdamped system are 0-25 second and 1.25 second respectively. Determine the transfer function if the d.c. gain is 0.9.(b) the Laplace Z(s) = (c) a Find the Laplace inverse of F(s) = (+ a22, where s is variable and a is a constant. 15 Synthesize the driving point impedence function S + 25 + 6 s(s+ 3) 15 How did the british disrupt american commerce between 1807 and 1812?. What is the tangent ratio for A? Shara has a garden that has a perimeter of 14 feet and a length of 4 feet. What is the width?A- 5feetB-4 feetC-3 feetD-2 feet Find the Effective Interest Rate 6% Compounded Quarterly 12% Compounded Monthly 18 % Compounded Continuously Payment Period Semi Annually Blank 1 % Blank 3% Blank 5 % Payment Period Monthly Blank 2 % How long is 1/3 of 2 hours What expressions are equal to 10 to the power of negative 5 9.The main difference between the salt in the DeadSea and salt in the school lab is thatA salt in the Dead Sea is saltier.B salt in the Dead Sea is iodized while thatof the lab is uniodized.C salt in the Dead Sea is sodium chloride whilethat of the lab has its hydrogen replaced.D salt in the Dead Sea is sodium chloridewhile salt in the lab is either soluble orinsoluble in water.