In a lab, a 30% acid solution is being mixed with a 5% acid solution to create a 10% acid solution. What is the ratio
of the amount of the 30% solution to the amount of 5% solution used to create the 10% solution?

1:3
1:4
1:5
1:6

Answers

Answer 1

Answer:

1:4

Step-by-step explanation:

Answer 2

Answer:

1:4

Step-by-step explanation:


Related Questions

125 × 37 help meeee pleaseeeeee

Answers

Answer:

Step-by-step explanation:

125x37=4625

4625 is the answer. You can first times 7 by all 125 and then 3

Find the measure of each angle in triangle ABC

Find the measure of each angle in triangle ABC

Answers

Answer:

A = 48

B = 86

C = 46

Step-by-step explanation:

All angles of a triangle add up to 180. So:

x - 22 + 2x - 54 + 1/2x + 11 = 180

Combine like terms:

3 1/2x - 65 = 180

3 1/2x = 245

7/2x = 245

7x = 490

x = 70

Plug this value in for A:

A = 70 - 22

A = 48

Now for B:

2(70) - 54 = B

140 - 54 = B

B = 86

Lastly, for C:

1/2 (70) + 11 = C

35 + 11 = C

C = 46

Add these up to ensure they add up to 180:

48 + 86 + 46 = 180

A boardwalk game of chance costs $1 to play. You have a 25% chance of winning $1 back, a 20% chance of winning $2
(your $1 back, plus an additional $1), and a 10% chance to win $5 (a gain of $4). What is the expected value of playing
the game if you lose your bet 45% of the time?
A. -$1.00
B. -$0.25
C.-$0.15
D. $0.15

Answers

Answer:

the answer is c

Step-by-step explanation:

Find the original slope of (-6,-1) and (0,3)

Answers

The original slope would be -2/3

Answer:

slope (m) = 2/3

Step-by-step explanation:

slope = change in x /change in y

Also, slope is y2 - y1 / x2 -x1. That is what I apply for this activity, hence:

slope = 3 - (-1) / 0 - (-6)

         = 3 + 1 / 0 + 6

         = 4 / 6

         = 2/3

∴ slope(m) = 2/3

PLEASE HELP ME I WILL MARK AS BRAINLIEST



A map has a scale of
5 in. = 16 mi. If you measured the distance between two cities to
be 16 in. on the map, how many miles would it actually be?
If necessary, round your answer to the nearest tenth.

Answers

Answer:

51.2 mi

Step-by-step explanation:

Proportions:

5 in ⇔ 16 mi

16 in ⇔ C mi

C = 16*16/5

C = 51.2 mi

100 Points! Geometry question. Photo attached. Find the measure. Please show as much work as possible. Thank you!

100 Points! Geometry question. Photo attached. Find the measure. Please show as much work as possible.

Answers

Answer:

The answer would lie within 31 degrees of MP and also as in PM.

Answer:

central m arc MP=118°

Step-by-step explanation:

here

central m arc MN=2* inscribed m arc MN=2*31=62°

again

central m arc MN+ central m arc MP=180° being linear pair

substituting value

62°+central m arc MP=180°

central m arc MP=180°-62°

central m arc MP=118°

100 Points! Geometry question. Photo attached. Find the measure. Please show as much work as possible.


What is the measure of angle A?

What is the measure of angle A?

Answers

Answer:

15°

Step-by-step explanation:

Angle B = 90° (right angle)

All angles of a triangle add up to 180°

A + B + C = 180°

A + 90 + 75 = 180°

A + 165 = 180°

A = 180 - 165

A = 15°

g(x)= x - 2; Find g(-2n)​

Answers

Answer:

-2(n+1)

Step-by-step explanation:

g(x)= x-2

g(-2n)=(-2n)-2

=-2n-2

=-2(n+1).

Please calculate this :

Please calculate this :

Answers

The value of the expression is determined as 14.

What is the value of the expression?

The value of the expression is calculated as follows;

We will apply the principle known as BODMAS;

B - bracket

O - Off

D - division

M - multiplication

A - addition

S - subtraction

The given expression; = (27 · 3  -  1719 ÷ 1719) ÷ 8 + 5² - 3³  + (8 · 4  -  2·13)

We will simplify the expression as follows;

(27 · 3  -  1719 ÷ 1719) = (81  -  1719/1719) = (81 - 1) = 80

(8 · 4  -  2·13) = (32  -  26) = 6

= 80 ÷ 8 + 5² - 3³  + 6

= (80/8) +  5² - 3³  + 6

= 10 +  5² - 3³  + 6

= (10 + 5² + 6) - 3³

= 41 - 27

= 14

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Which number doesn't share the same pattern as
2,20, 4,8,300​

Answers

The number 2 dosent share the same pattern

Which box plot best represents the data?

Which box plot best represents the data?

Answers

The box plot that best represents the data is given as follows:

Box plot C.

What does a box and whisker plot shows?

A box and whisker plot shows these five metrics from a data-set, listed and explained as follows:

The minimum non-outlier value.The 25th percentile, representing the value which 25% of the data-set is less than and 75% is greater than.The median, which is the middle value of the data-set, the value which 50% of the data-set is less than and 50% is greater than%.The 75th percentile, representing the value which 75% of the data-set is less than and 25% is greater than.The maximum non-outlier value.

The ordered data-set for this problem is given as follows:

0, 4, 4, 5, 6, 6, 8, 8, 12, 12.

The minimum and maximum values are given as follows:

Minimum of 0.Maximum of 12.

The two middle elements are given as follows:

6 and 6.

Hence the median is:

(6 + 6)/2 = 6.

The first half is 0, 4, 4, 5, hence the first quartile is given as follows:

4.

The second half is 8, 8, 12, 12, hence the third quartile is given as follows:

8.

Hence box plot C is the correct option.

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find a number delta such that if |x-2| < delta then |4x-8| < epsilon, where epsilon is greater than 0.1

Answers

We can take delta as epsilon/4 to satisfy |4x - 8| < epsilon.

First of all, let us find an expression for |4x-8| in terms of |x-2|.

Since x can be either less than or greater than 2, then we'll have two cases:

Case 1: x < 2. Then 4x < 8 and |4x - 8| = 8 - 4x.

Case 2: x > 2. Then 4x > 8 and |4x - 8| = 4x - 8.

In either case, we see that |4x - 8| is proportional to |x - 2| with a constant of 4.

Therefore, we can take delta = epsilon/4 to satisfy |4x - 8| < epsilon.

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According to your graphing calculator, what is the approximate solution to the trigonometric inequality cos(0.65x)>.44 over the interval 0

Answers

Answer:

the solution to the trigonometric inequality cos(0.65x) > 0.44 over the interval 0 ≤ x < 4.834.

Step-by-step explanation:

The given inequality is:

cos(0.65x) > 0.44

To solve this inequality, we need to isolate the variable x.

First, let's take the inverse cosine (arccos) of both sides to remove the cosine function:

arccos(cos(0.65x)) > arccos(0.44)

Since the range of the inverse cosine function is limited to [0, π], we can rewrite the inequality as:

0 ≤ 0.65x < π

Now, let's solve for x by dividing each part of the inequality by 0.65:

0/0.65 ≤ x < π/0.65

Simplifying, we have:

0 ≤ x < π/0.65

Now, let's calculate the approximate value of π/0.65 to determine the interval for x:

π/0.65 ≈ 4.834

i hope i helped!

−k+3k what is the answer to this problem

Answers

Answer:

It is 2k

Step-by-step explanation:

All you do is add them together

Given D(7,2), E(1, 9), F(4,8), and G(x, 1). Find a such that DE || FG.

Answers

The value of x with the given condition is 10

How to determine the value of x

From the question, we have the following parameters that can be used in our computation:

D(7,2), E(1, 9), F(4,8), and G(x, 1),

Also, we have

DE || FG

This means that the lines DE and FG are parallel lines and they have equal slope

The slope is then calculated as

slope = (y₂ - y₁)/(x₂ - x₁)

So, we have

(9 - 2)/(1 - 7) = (1 - 8)/(x - 4)

Evaluate the difference

-7/6 = -7/(x - 4)

So. we have

x - 4 = 6

Evaluate

x = 10

Hence. the value of x is 10

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Question 2 (Fill-In-The-Blank Worth 1 points)
(02.02 MC)
Use the graph to fill in the blank with the correct number.

Question 2 (Fill-In-The-Blank Worth 1 points)(02.02 MC)Use the graph to fill in the blank with the correct

Answers

Answer:

Is there a question?

Step-by-step explanation:

Hello??

Which angles are adjacent to <2? Select all that apply.

Which angles are adjacent to &lt;2? Select all that apply.

Answers

\(\begin{gathered} \text{adjacent angles to <2 are the ones that are on his "sides" thus the adjacent angles to <2 are} \\ <3\text{ and <1} \end{gathered}\)

A tree with a height of 8 ft casts a shadow 14 feet long on the ground. How high is another tree that casts a shadow which is 21 feet long?​

Answers

Answer:

12

Step-by-step explanation:

Do 8 divided by 14 =0.571428571

times that by 21 = 12

simplify by combining like terms x(x-y)+y(y-x)

Answers

Step-by-step explanation:

x(x-y) + y(y-x) = x(x-y) - y(x-y) = (x-y)(x-y) = (x-y)² ...........

What is the following sum?
4/5+2/5

Answers

4/5+2/5=6/5 aka 1.2

ahhhhhh

Answer:

1.2

Step-by-step explanation:

What time does the first train get to oakengates

What time does the first train get to oakengates

Answers

Answer:

a) 0815

b) 22 minutes

Hope this helps!

How many are there?

H+H+H+H+H+

Answers

Answer: There are 5 H's  on the board but I do not see how this is a school question.

Step-by-step explanation:

Answer: according to my calculations, there is exactly 2 H’s

(So easy)

Step-by-step explanation:

Bally Manufacturing sent Intel Corporation an invoice for machinery with a $13,100 list price. Bally dated the invoice August 01 with 3/10
EOM terms. Intel receives a 40% trade discount. Intel pays the invoice on August 14. On August 10, Intel Corporation returns $100 of the machinery due to defects. What does Intel pay Bally on August 14?

Answers

The Intel pays $7,760 to Bally Manufacturing on August 14.

The first step in calculating what Intel Corporation pays Bally on August 14 is to determine the net price of the machinery after the trade discount and the return of $100 due to defects.

The trade discount of 40% is calculated as follows:

Discount = List price × Discount rate

Discount = $13,100 × 0.40 = $5,240

So the net price of the machinery after the trade discount is:

Net price = List price - Discount

Net price = $13,100 - $5,240 = $7,860

After Intel returns $100 of machinery, the cost of the machinery is further reduced to:

Net price after return = Net price - Return

Net price after return = $7,860 - $100 = $7,760

Since the payment terms are 3/10 EOM (end of month), Intel receives a discount of 3% if payment is made within 10 days. The 10-day period begins on August 1 and ends on August 10 (the payment due date). Since Intel pays the bill on August 14, payment is late and the 3% discount does not apply.

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At the north campus of a performing arts​ school, ​20% of the students are music majors. At the south​ campus, 70​% of the students are music majors. The campuses are merged into one east campus. If ​30% of the 1000 students at the east campus are music​ majors, how many students did the north and south campuses have before the​ merger?

Answers

Answer:

The north campus had \(800\) while the south campus had \(200\).

Step-by-step explanation:

The question stated that there are \(1000\) students in the merged campus. That's the sum of the number of students in the north and the south campus before the merger.

Let \(x\) denote the number of students in the north campus before the merger. The other \((1000 -x)\) students would all belong to the south campus before the merger.

Before the merger, \(20\%\) of the students of the north campus are of music majors. In terms of \(x\), that's \((20\%)\cdot x = 0.20\,x\) students.

On the other hand, \(70\%\) of the students of the south campus are of music majors. That corresponds to \((70\%)\cdot (1000 - x) = 0.70\cdot (1000 - x) = 700 - 0.70\, x\) students.

With a similar logic, the number of music students in the merged east campus will be \(30\% \times 1000 = 300\).

The question implies that the sum of students in the two campuses should be equal to the number of music students in the east campus. That is:

\(0.20\, x+ (700 - 0.70\, x) = 300\).

Solve for \(x\):

\(x = 800\).

In other words, there are \(800\) students in the north campus and \((1000 - 800) = 200\) students in the south campus before the merger.

30 POINTS!!!!! (answer with work please)

1) A cone with volume 1350 m³ is dilated by a scale factor of 1/3. What is the volume of the resulting cone?

2) The top of the silo is a hemisphere with a radius of 11 ft. The bottom of the silo is a cylinder with a height of 38 ft. How many cubic feet of grain can the silo hold? Use 3.14 for pi and round your answer to the nearest cubic foot.

Answers

Answer: The answer is 50 m³.

Step-by-step explanation: We are given to find the volume of the cone cone after being dilated by a factor of one-third from a cone with volume  1350 m³.

The volume of a cone with base radius 'r' units and height 'h' units is given by

\(V=\frac{1}{3}\pi r^2h.\)

Therefore, if 'r' is the radius of the base of original cone and 'h' is the height, then we can write

\(V=\frac{1}{3}\pi r^2h=1350\)

⇒ \(\pi r^2h=4050.\)

Now, if we dilate the cone by a scale factor of , then the radius and height will become one-third of the original one.

Therefore, the volume of the dilated cone will be

\(V_d=\frac{1}{3}\pi (\frac{r}{3})^2\frac{h}{3} =\frac{1}{81}\) × \(\pi r^2h=\frac{1}{81}\) × \(4050=50\)

Thus, the volume of the resulting cone will be 50 m³.

Ms, Alvarez wants to determine the seventh grader's preferences for the location of the end-of-year field trip. Which of the samples representative of the population?

Answers

Answer:

A.  All students in Ms. Alvarez's fifth-period class

Step-by-step explanation:

The options are missing, so I looked them up:

A.  All students in Ms. Alvarez's fifth-period class

B.  All students in Ms. Alvarez's advisory group

C.  Every third student from an alphabetical list of all students in the entire school district

D.  Every fifth student from an alphabetical list of all seventh graders in the school

In statistics, the population is the whole number of people (or data) where you can draw a sample from, i.e. the population is the whole group, while the sample represents a smaller number of people that participated in the study or survey.

Options C and D are wrong because a population must include all possible subjects and not just every third student or every fifth one. Option B is also wrong because I doubt that all seventh graders are in her advisory group, since advisory groups tend to be relatively small. The only option left is A and it would be correct if Ms. Alvarez's fifth-period class  included only seventh graders (which is more plausible).

Please help me I’ll give Brainlist

Please help me Ill give Brainlist

Answers

Answer:

The 3rd option.

Step-by-step explanation:

PLSSS HELP!! Ty whoever helped me! :) Question: Select the statement that is true about the two-dimensional figure.

A quadrilateral with the vertices labeled L, M, N and O. Angles M L O and L M N are greater than 90 degrees, and angles L O N and M N O are less than 90 degrees.

∠LMN is an acute angle.
∠LMN is an obtuse angle.
∠MNO is an obtuse angle.
∠MNO is a right angle.

Answers

Answer: Choice B

∠LMN is an obtuse angle.

==========================================

Explanation

Let's go through the answer choices to see which are true, and which are false.

A. This is false. It is stated that "LMN is greater than 90 degrees", so this angle is obtuse. Acute angles are less than 90 degrees.B. This is true. See choice A above.C. This is false. We're told that "angle MNO is less than 90 degrees". That makes the angle acute. D. This is false. See choice C above. Right angles are 90 degrees exactly. Often a small square marker is used to denote a 90 degree angle.

The mean life of a new smart LED bulb is 20,000 running hours with a standard deviation is 2,250 hours. The data is normally distributed. If a home improvement store sold 18,000 of these light bulbs in the first year of production, how many light bulbs would you expect to last longer than 22,250 hours?

Answers

Answer: The expected number of bulbs that would last longer than 22,250 hours is approximately 2,857.

Step-by-step explanation:

To solve this problem, we can start by finding the z-score for 22,250 using the formula:z = (x - mean) / standard deviationz = (22,250 - 20,000) / 2,250 = 1Next, we need to find the proportion of bulbs lasting longer than 22,250. We can look up this proportion in a standard normal distribution table or use a calculator, which gives us a probability of 0.1587.Finally, we can use this probability to find the expected number of bulbs that will last longer than 22,250:Expected number of bulbs = probability * total number of bulbs sold Expected number of bulbs = 0.1587 * 18,000 = 2,857Therefore, we can expect that approximately 2,857 of the 18,000 bulbs sold will last longer than 22,250 running hours.

Answer:

the afternoon is the right one

2log12 3 + 4log12 2 simplifying

Answers

Hello, I was happy to solve the problem. If you find a bug, post in the comments or click on the report, I will see it and try to fix it as soon as possible.

The answer to this problem: 2

2log12 3 + 4log12 2 simplifying
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