Yoko pumped 48 gallons of water out of her pool over 8 minutes at a constant rate. The change in the amount of water in the pool each minute was 6 gallons.
To find the change in the amount of water in the pool each minute, we divide the total amount of water pumped (48 gallons) by the total time taken (8 minutes). This gives us the rate at which the water was being pumped out.
In this case, 48 gallons divided by 8 minutes equals 6 gallons per minute. This means that Yoko was pumping out 6 gallons of water from the pool every minute.
The constant rate indicates that the amount of water being pumped out remained the same throughout the entire 8-minute period. So, in the first minute, 6 gallons of water were pumped out, in the second minute another 6 gallons, and so on, until the entire 48 gallons were pumped out by the end of the 8-minute period.
Therefore, the change in the amount of water in the pool each minute was a consistent decrease of 6 gallons, resulting in a total of 48 gallons being pumped out over 8 minutes.
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In a group of 300 people, 100 like folk songs, 20% like folk songs but not pop song. if the ratio of people who like pop songs only and donot like both is 3:2, find the number of people who like only one song?
Given, In a group of 300 people, 100 like folk songs, 20% like folk songs but not pop song. if the ratio of people who like pop songs only and do not like both is 3:2. We are to find the number of people who like only one song.
The number of people who like folk songs = 100.We know, that 20% of people like folk songs but not pop songs.So, the number of people who like both folk and pop songs = 20% of 100 = 20.The remaining number of people who like only folk songs = 100 - 20 = 80Let the number of people who like only pop songs be 3xAnd, let the number of people who do not like any song be 2x.
Then, total number of people who like one or the other song = 80 + 20 + 3x + 2x = 100 + 5xWe know, the total number of people = 300Therefore, the number of people who like both folk and pop songs = 300 - (number of people who do not like any song)Therefore, 20 = 300 - 2x5x = 280⇒ x = 56Therefore, the number of people who like only pop songs = 3x = 3 × 56 = 168The number of people who like only one song = 80 + 168 = 248. Hence, the required number of people who like only one song is 248.
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BRAINLIEST + 25 PTS FOR CORRECT ANSWER.
Lia gets paid $450 a week plus a
5% commission on her sales. She
hopes to earn at least $600
dollars each week.
a. Write an inequality to
represent the verbal
description.
b. How much does Lia
need in sales to make
her goal?
Answer:
a: 450 + .05c ≥ 600
b: She needs to make $3,000 in sales to reach her goal.
PLz mark brainliest
Find the expected value of the winnings
from a game that has the following
AWARDING BRAINLEST ANSWER!! PLZ I NEED HELP!!
payout probability distribution:
Payout ($)
0
5
8
10
15
Probability 0.5 0.2 0.15 0.1 0.05
Expected Value = [?]
Round to the nearest hundredth.
Answer:
The answer is 3.95
Step-by-step explanation:
0×.5 + 5×.2 + 8×.15 + 10×.1 + 15×.05 = ?
0 + 1 + 1.2 + 1 + .75 = 3.95
The slope of a line is -1/5 and the -intercept is 5. What is the equation of the line written in slope-intercept form? Type the equation in the space provided. Be sure to use the slope-intercept form noted in the lesson.
y=mx+b
Answer:
y = -1/5 x + 5
Step-by-step explanation:
A 3-gallon bucket of paint costs $ 81.60. What is the price per pint?
Answer: $3.40 per pint
Step-by-step explanation:
1 gallon=8 pints
3 gallons * 8 pints/1 gallon=
3*8/1=
3*8=24 pints in 3 gallons
$81.6 for 24 pints of paint
81.6/24=$3.40 per pint
A number cube is labeled 1 through 6. What is the probability of NOT
rolling a 2?
Answer:
Step-by-step explanation:
each of the 6 number has a 1/6 chance of being rolled
1 2 3 4 5 6
1/6 1/6 1/6 1/6 1/6 1/6
Every time the cube is rolled there is a 6/6 chance of any number comes up
1/6 + 1/6 + 1/6 + 1/6 + 1/6 + 1/6 = 6/6 or 1
What is the probability of NOT rolling a 2? Any other number
1 2 3 4 5 6
1/6 + 0 + 1/6 + 1/6 + 1/6 + 1/6 = 5/6 or 0.8333
Write an equation in slope-intercept form using the given information about the line. No spaces, decimals, or mixed numbers. Write fractions in the form a/b.
It passes through the points (4, 9) and (2, 8).
y= ?
\((\stackrel{x_1}{4}~,~\stackrel{y_1}{9})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{8}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{8}-\stackrel{y1}{9}}}{\underset{run} {\underset{x_2}{2}-\underset{x_1}{4}}}\implies \cfrac{-1}{-2}\implies \cfrac{1}{2}\)
\(\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{9}=\stackrel{m}{\cfrac{1}{2}}(x-\stackrel{x_1}{4}) \\\\\\ y-9=\cfrac{1}{2}x-2\implies y=\cfrac{1}{2}x+7\)
compute the critical value za/2 that corresponds to a 83% level of confidence
The critical value zₐ/₂ that corresponds to an 83% level of confidence is approximately 1.381.
To find the critical value zₐ/₂, we need to determine the value that leaves an area of (1 - α)/2 in the tails of the standard normal distribution. In this case, α is the complement of the confidence level, which is 1 - 0.83 = 0.17. Dividing this value by 2 gives us 0.17/2 = 0.085.
To find the z-value that corresponds to an area of 0.085 in the tails of the standard normal distribution, we can use a standard normal distribution table or a statistical calculator. The corresponding z-value is approximately 1.381.
Therefore, the critical value zₐ/₂ that corresponds to an 83% level of confidence is approximately 1.381.
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Plssss help will give brainiest to whoever gives the right answer for 13 and 14
13. The strategies used to decide how to order or group factors includes prime factorization, exponents, distributive property
14. The need for reordering factors involves solving equations, applying theorems.
How to order and group factorsIn grouping and ordering factors, we have to consider methods like prime factorization, factoring by grouping, employing exponents, using common factors.
Also, we should consider algebraic approaches like the distributive property for ranking and grouping components.
Elements or factors are rearranged for a variety of purposes, such as to solve equations or inequalities, uncover patterns, make computations easier, or apply particular mathematical principles or theorems
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What is the equation?
Answer:
76
Step-by-step explanation: and explain
Answer:
Step-by-step explanation:
hello : here is an solution
On a chemistry quiz, there are 5 multiple choice questions with 4 choices each. What is the probability that you get a 100% if you strictly guess.
Answer:
0.097%
Step-by-step explanation:
Since this is a series of events probability question, in order to calculate the probability you need to first find the probability of getting each individual answer right and then multiplying those probabilities together. This will give you the probability of getting 100% on the entire test. Since the questions are multiple-choice with 4 choices and only 1 correct choice then the probability of getting one right is 1/4 or 25%. Now that we have that probability we simply need to multiply it 5 times for each individual question.
1/4 * 1/4 * 1/4 * 1/4 * 1/4 = 1/1024 or 0.0009765 or 0.097%
I am really confused on all these.. Also yes there is an extra page for it but my teacher let us not do it. So only those questions.
Answer:
See below!
Step-by-step explanation:
1) 720cm - m
cm -> m = ÷ 100720 ÷ 100 = 7.22) 983 mm - m
mm -> m = ÷ 1000983 ÷ 1000 = 0.9833) 130.5kL - L
kL -> L = × 1000130.5 × 1000 = 1305004) 0.03 g - mg
g -> mg = × 10000.03 × 1000 = 305) 997 g - kg
g -> kg = ÷ 1000997 ÷ 1000 = 0.9976) 9.1 l - ml
l -> ml = × 10009.1 × 1000 = 91007)3.75 c - ml
c ->ml = × 236.593.75 × 236.59 = 887.21258) 41.8 in - cm
in -> cm = × 2.542.54 × 41.8 = 106.1729) 156.25 lb - kg
lb -> kg = × 0.4536156.25 × 0.4536 = 70.87510) 9.5 gal - l
gal -> l = × 3.799.5 × 3.79 = 36.00511) 680.4 g - lb
g -> lb = ÷ 453.6680.4 ÷ 453.6 = 1.512) 4.725 m - ft
m -> ft = ÷ 0.34.725 ÷ 0.3 = 15.75Hope this helps, have a lovely day! :)
Find the value of csc 0 if cos 0 = -3/5 and 0 is in the second quadrant.
we know that the cos(θ) is -(3/5), however θ is in the II Quadrant, where the cosine is negative whilst the sine is positive, meaning the fraction is really (-3)/5, so
\(cos(\theta )=\cfrac{\stackrel{adjacent}{-3}}{\underset{hypotenuse}{5}}\qquad \qquad \textit{let's find the \underline{opposite side}} \\\\\\ \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies \sqrt{c^2-a^2}=b \qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases}\)
\(\pm\sqrt{5^2-(-3)^2}=b\implies \pm\sqrt{25-9}=b\implies \pm 4=b\implies \stackrel{II~Quadrant}{+4=b} \\\\[-0.35em] ~\dotfill\\\\ ~\hfill csc(\theta )=\cfrac{\stackrel{hypotenuse}{5}}{\underset{opposite}{4}}~\hfill\)
Write the equation 5x=2y+10 in the slope-intercept form and find the slope of a line parallel to it. PLZ HURRY!
Answer: Y=-5/2x+5(Idk i'm doing it off of my head)
Answer:
y=5/2x -5 slope is 5/2
Step-by-step explanation:
parallel lines have the same slope
If P is true, Q is false, R is true, and S is false, determine the truth value of the following.
~[P v (Q v R)] >~ (SVP)
O a. True
O b. False
The truth value of the ~[P v (Q v R)] >~ (S v P) is true.
Truth-value, in logic, is the degree to which a particular proposition or assertion is true (T or 1) or false (F or 0). Because the truth-value of a compound proposition is a function of, or a quantity depending upon, the truth-values of its component components, logical connectives like disjunction and negation can be conceived of as truth-functions.
Given, ~[P v (Q v R)] >~ (S v P) since P v (Q v R) is true, thus ~ [ P v ( Q v R ) ] is false, therefore the implication is true.
⇒~[T v (F v T)] >~ (F v T)
⇒[F v (F v T)]>(T v T)
⇒[F v (F v T)]>(T v T)
⇒F v T
⇒T
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A = 2x + 6xz Solve for X
Answer:n=28
Step-by-step explanation:
Consider the following three systems of linear equations. System A System B System C 11 x= -44 [B1] x=-4 [C1] - 7x- 6y= 10 [A1] 6x+2y=- 18 [A2] 6x + 2y=-18 [B2] 6x +2y=-18 [C2] Answer the questions below. For each, choose the transformation and then fill in the blank with the correct number. The arrow ( - ) means the expression on the left becomes the expression on the right. How do we transform System A into System B? O X Equation [A1] → Equation [B1] Х ? 1 x Equation [A2] → Equation [B2] * Equation [A1] + Equation [A2] → Equation [B2] 1 x Equation [A2] + Equation [A1] → Equation [31] How do we transform System B into System C? 1 x Equation (B1] Equation (C1] X Equation [B2] → Equation (C2] 1 x Equation [31] + Equation [B2] → Equation (C2] * Equation [B2] + Equation [31] → Equation [21]
The correct transformations:
1) 3 x Equation [A2] + Equation [A1] → Equation [B1]
2). 1/11 x Equation [B1} → Equation [C1]
The correct options are D and A respectively.
What is the system of equations?One or many equations having the same number of unknowns that can be solved simultaneously are called simultaneous equations. And the simultaneous equation is the system of equations.
Given:
We have three systems of linear equations.
To transform system A into system B:
Multiply 3 to the equation A2 and then add to equation A1,
we get,
-7x +18x -6y + 6y = 10- 54
11x = -44
equation B1.
To transform system B into system C:
Multiply 1/11 to equation B1,
we get,
x = -4
equation C1.
Therefore, the transformations are given above.
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Kelsey uses the similarity statement ARST - ARUV to describe the triangles below.
S
3.0 cm
5.4 cm
4.0 cm
R
V
2.7 cm
T
8.0 cm
1.5 cm
U
Which best describes the accuracy of her statement?
Answer:
The answer is A: Accurate. Each pair of sides corresponds with a common ratio of 2.
Step-by-step explanation:
Got it on the quiz on edg 2021 :D
Choose the inequality represented in the graph.
Correct option is B, the graph represents the inequality y ≤ - x + 9.
How can you spot an inequality?Both mathematical expressions that are created by joining two expressions are called inequalities. The equation's two expressions are deemed to be equal when the equals sign (=) is present. The characters >, or indicate that the two expressions are not necessarily equal in an inequality.
We may see the values that an inequality reflects by placing inequality on a number line. We create a straight line and identify the end points with either an open circle or a closed circle in order to represent inequalities on a number line.
For the given graph,
y ≤ - x + 9
Put x = 0
y ≤ 9
The above condition is correct for the given graph.
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Which equation can be used to prove 1 + tan2(x) = sec2(x)?
StartFraction cosine squared (x) Over secant squared (x) EndFraction + StartFraction sine squared (x) Over secant squared (x) EndFraction = StartFraction 1 Over secant squared (x) EndFraction
StartFraction cosine squared (x) Over sine squared (x) EndFraction + StartFraction sine squared (x) Over sine squared (x) EndFraction = StartFraction 1 Over tangent squared (x) EndFraction
StartFraction cosine squared (x) Over tangent squared (x) EndFraction + StartFraction sine squared (x) Over tangent squared (x) EndFraction = StartFraction 1 Over tangent squared (x) EndFraction
StartFraction cosine squared (x) Over cosine squared (x) EndFraction + StartFraction sine squared (x) Over cosine squared (x) EndFraction = StartFraction 1 Over cosine squared (x) EndFraction
The equation that can be used to prove 1 + tan2(x) = sec2(x) is StartFraction cosine squared (x) Over tangent squared (x) EndFraction + StartFraction sine squared (x) Over tangent squared (x) EndFraction = StartFraction 1 Over tangent squared (x) EndFraction. the correct option is d.
How to explain the equationIn order to prove this, we can use the following identities:
tan(x) = sin(x) / cos(x)
sec(x) = 1 / cos(x)
tan2(x) = sin2(x) / cos2(x)
sec2(x) = 1 / cos2(x)
Substituting these identities into the given equation, we get:
StartFraction cosine squared (x) Over tangent squared (x) EndFraction + StartFraction sine squared (x) Over tangent squared (x) EndFraction = StartFraction 1 Over tangent squared (x) EndFraction
Therefore, 1 + tan2(x) = sec2(x).
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A TV weather channel reports a 35% chance of rain today.
What is the probability that it will not rain today?
Answer:
There is a 65% chance it will not rain
Step-by-step explanation:
The probability must add to 100%. There are two choices: it will rain or it will not rain
100-35% = 65%
There is a 65% chance it will not rain
An engineer i uing computer-aided deign (CAD) oftware to deign a component for a pace huttle. The cale of the drawing i 1 cm : 60 in. The actual length of the component i 12. 75 feet. What i the length of the component in the drawing?
the length of the actual component i
cm
The length of the component in the drawing is 2.5 cm
As per the data given an engineer is using computer-aided deign (CAD) software to deign a component for a space shuttle.
The scale of the drawing is 1 cm : 60 in
That means
1 cm in the drawing represent 60 inches in the actual
So using proportion:
We can find out the the length of the component in the drawing, if the actual length of the component is 12.5 feet
Remember that
1 foot = 12 inches
Convert 12.5 ft to inches
We get:
12.75 ft = 12.75(12)
= 150 in
The scale of 1 cm : 60 in allows us to form the proportion below
\($\frac{1}{60} \frac{c m}{i n}=\frac{x}{150} \frac{c m}{i n}$\)
x \($=\frac{153}{60}\)
x = 2.55 cm
Therefore the length of the component is 2.55 cm
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2 1/3-1.5x=12.3
What is x?
Fraction only, please!
Answer:
x=12.3
Step-by-step explanation:
Yan po Ang x
pa brainlest po
pa follow po
pa heart and 5 star
pls
Answer:
your answer would be 9753/1000
Step-by-step explanation:
2 1/3-1.5x=12.3
step 1:
to solve for x. You have to add 2 1/3 to 12.3 and get x by itself.
2 1/3+ 12.3= 14.63..
step 2 :
now that you have x by itself you're going to divide both sides by x which is -1.5x.
-1.5x/ -1.5x 14.63/ -1.5 = 9.753
step 3:
to put 9.753 in a fraction get rid of the decimal and put it over 1000 since there are 3 numbers after the decimal point.
so your final answer is 9753/1000
-
indicate whether the measures 8, 14, and 16 can be the side lengths of a triangle. if they can, classify the triangle.
Answers:
A triangle is possible.
The triangle is acute and scalene
=============================================================
Explanation:
We use the triangle inequality theorem to see if a triangle is possible with these side lengths.
Consider the side lengths a, b, and c. A triangle is possible if and only if the following 3 conditions hold true
a+b > ca+c > bb+c > aBasically pick any two sides. If the sum is larger than the third side, then a triangle is possible.
-----------------
In this case we have: a = 8, b = 14, c = 16. The order of the a,b,c values doesn't really matter.
Then:
a+b = 8+14 = 22 which is larger than c = 16. So a+b > c is true.a+c = 8+16 = 24 is larger than b = 14. So a+c > b is true.b+c = 14+16 = 30 is larger than a = 8. So b+c > a is true.All three inequalities mentioned are true; therefore, a triangle is possible with these side lengths.
-----------------
We'll use those a,b,c values in the converse of the pythagorean theorem to determine what kind of triangle this is. So far we know it's scalene because all three side lengths are different. It would be isosceles if it had exactly two equal sides, and equilateral if all 3 sides were the same length.
\(a^2+b^2 = c^2\\\\8^2+14^2 = 16^2\\\\260 = 256\\\\\)
The last equation is false, which tells us this triangle is not a right triangle. It's either acute or obtuse.
Since \(a^2+b^2 > c^2\) is the case here, we can conclude the triangle is acute
If \(a^2+b^2 < c^2\) was the case, then the triangle would be obtuse.
-----------------
Summary:
A triangle is possible with side lengths a = 8, b = 14, c = 16.This triangle is scalene and acuteWhich ordered pair is a solution to the equation?
y=x54−3
(−5, −7)
(5, −1)
(10, −11)
(−10, 5)
Answer:
y=4/5x-3 - (-5, -7)
Step-by-step explanation:
So to solve this, lets just plug in each value for x, and see if the y value we get is equal to one of our answers.
So we have (-10, 5)
Well plug in -10 for 4/5x we get:
-40/5=-8
Next we take that value and solve:
y=-8-3
y=-11
The answer for this was 5, not -11.
Ill skip a few steps:
(10, -11):
Plug in 10 we get:
y=8-3 which is y=5. This is not right, for it needed to be -11.
Next we have (5, -1)
This gets us y=4-3 this is y=1 which is not -1. So thats not right.
Finally we have (-5, -7):
This gets us y=-4-3 this is y=-7. What was our y value? -7!
So the answer is (-5, -7)
I hope this helps! :)
The perimeter of a regular hexagon is 84 cm. What is the length of one side?
(WRITE AN EQUATION FOR THAT^^)
Answer:
14cm
Step-by-step explanation:
As we know , hexagon has six sides .
so ,
We will divide the number of sides by the total perimeter to obtain the length of one side :
_____________________
Hexagon = 6 sides .
Length of one side of hexagon would be = 84/6
=> 14 cm
Answer:
14 cm
Step-by-step explanation:
The perimeter of a regular hexagon is 84 cm. (Given)
Here,
Hexagon = 6 sides
Now,
= 84 ÷ 6
= 14 cm
Thus, the length of one side is 14 cm
PLEASE ANSWER WILL GIVE POINTS AND VOTE YOU BRAINLIEST.
Select all stories that the tape diagram can represent.
A. Lin buys a pack of 87 pencils. She gives 39 to her teacher and shared the remaining pencils between herself and 3 friends.
B. Diego’s family spends $87 on 4 tickets to the fair and $39 for dinner.
C. There are 87 children and 39 adults at a show. The seating in the theatre is spilt into 4 equal sections.
D. Andre buys 4 packs of paper clips with 39 paper clips in each. Then he gives 87 paper clips to his teacher.
E. There are 87 first graders in after care. After 39 students are picked up, the teacher put the remaining students into 4 groups for an activity.
What geometric shapes are in the fools puzzle quilt
The quilt consist of the following geometric shapes, which are the areas
bounded by lines, including;
An octagonA pentagonA right isosceles triangleAn equilateral triangleHow can the geometric shapes in the quilt be found?
Geometric shapes are shapes with boundary lines, interior angles and
surfaces.
The possible given quilt is attached;
From the given quilt, we have;
An octagon
A pentagon
A right isosceles triangle
An equilateral triangle
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BRAINLIEST!!!
2w+8=16
what is the answer please help me its confusing
Answer:
w=4. its pretty simple. all you do is divide by 2
Step-by-step explanation:
is shape A congruent to shape 82BA
Solution
For this case the answer would be:
yes
And the reason is because we have the same shape and with the smae structure so then are congruent