Magdeline wants to know if the number of words on a page in her art book is generally more than the number of words on a page in her science book. She takes a random sample of 25 pages in each book and then calculates the mean, median, and mean absolute deviation for the 25 samples of each book.

Book Mean Median Mean Absolute Deviation
Art 68.7 50 15.4
Science 54.2 55 7.9


She claims that because the mean number of words on each page in the art book is greater than the mean number of words on each page in the science book, the art book has more words per page. Based on the data, is this a valid inference? (10 points)

Yes, because the mean is larger in the art book
No, because the mean is larger in the art book
Yes, because there is a lot of variability in the art book data
No, because there is a lot of variability in the art book data

Answers

Answer 1

Answer: Yes, because the mean is larger in the art book.

Step-by-step explanation:

to find the mean you add all of the numbers then divide by 3. the mean of the art book is 44.7. the mean of the science book is 39.03. so, she is correct with her statement.

Answer 2

Answer:

Step-by-step explanation:

a


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Answers

Answer: what are you talking about you might have to explain more of it because it's just not making sense and then i can help you

Step-by-step explanation:

I don’t understand what you mean

Can anyone answer this ASAP!

Answers

1= 300

2= -13

3= 45

4= 13

5= 2

6= 16

8= 15 degrees

9= 340

10= +10

11= -9

12= -14

13= -25

14= 4

15= -20

16= 9

17= 25

If a sweatshirt cost $45, and sales tax is 7%, how much tax did you pay?

Answers

$48.15

Good Luck!!! :)

Answer:

Step 1: take the total price and divide it by one plus the tax rate.

Step 2: multiply the result from step one by the tax rate to get the dollars of tax.

Step 3: subtract the dollars of tax from step 2 from the total price.

Pre-Tax Price = TP – [(TP / (1 + r) x r]

TP = Total Price

If y varies directly with x, and y = 2 when x = −4, what is the value of y when x = 20 ?

Answers

Answer:

y=kx

2=k.-4

k=-1/2

then

y=-1/2×20

y=-10

Answer:

y = - 10

Step-by-step explanation:

Given that y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 2 when x = - 4, that is

2 = - 4k ( divide both sides by - 4 )

[tex]\frac{2}{-4}[/tex] = k, that is

k = - [tex]\frac{1}{2}[/tex]

y = - [tex]\frac{1}{2}[/tex] x ← equation of variation

When x = 20, then

y = - [tex]\frac{1}{2}[/tex] × 20 = - 10

Please help with this question

Answers

y=10x+120 sorry if I’m wrong doe

Malik borrowed $1,800 from the bank at a rate of 8% simple interest per year.Over the course of three years ,how much interest did he pay?

A.$144
B.$432
C.$2232
D.$4320

Answers

I’m gonna say c? Good luck!

Answer:

b

Step-by-step explanation:

if malik is just paying interest and not the whole then b.

1,800 × 0.08 = 144, 144 × 3 = 432. the interest would be 432

In which choice do all three points lie on the same straight line?

A) (0,0) (5, 4) (7,4)
B) (1,1) (2,4) (3,9)
C) (-2,5) (0,3) (5,-2)
D) (-1,-1) (0,0) (4, 64)

Answers

Answer:

why did you remove my answer?

Step-by-step explanation:

C sorry if I’m wrong

16.1 – (–14.7) explain your work

Please help

Answers

1.4 you subtract normally it as if you were doing whole numbers

Answer:

1.4 or 30.8

Step-by-step explanation:

1.4 is for regular math because it's basically 16.1 - 14.7

30.8 is for KCO or Keep Change Opposite (Beginners math)

Basically it would turn the equation into 16.1 + 14.7

You can use either but if you aren't sure ask your teacher about the strategy.

Hope this helps and if not tell me your strategy.

need help please help

Answers

Answer: The Relation IS A FUNCTION. Domain:  {7, -8,6, -1} Range: {1, -5,4 -6}

Step-by-step explanation is below.

Best of luck!

- A Math Tutor That Just Helped You.

NOTE THAT THIS IS ONLY ANSWER FOR QUESTION ONE

Tap tap tap in- Oh! Didn’t see you there

Answers

Answer:2.181

Step-by-step explanation:

Answer:

2.18 or 2.18182

Step-by-step explanation:

Help please I will give you the crown.

Answers

Answer:

Option D) ∠FED

Step-by-step explanation:

Options A, B and C are actual exterior angles, but Option D is just a vertically opposite angle to ∠BEH

D is correct thank me later

In March, Isaiah and Freddie had the same amount of money in their savings accounts. In April, Isaiah deposited $210 into his account. Freddie increased the money in his account by 15%. When they compared their balances, they found that they were still equal. How much money did they both have in their accounts in March? Enter your answer in your box

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Let the original amount in Isaiah and Freddie's accounts be x

15%of x=$210

15x/100=$210

x=210*100/15

x=$1400

Write each phrase as a numerical or algebraic expression.

4) 25 less than k

5) the product of 79 and m

6) the quotient of 325 and 5

Write each numerical or algebraic expression using words.

7) 87 x

8) 38 + s

Answers

4) 25 < k
5) 79 * m or 79m (depending on how your teacher taught you)
6) 325/5
7) the product of 87 and x
8) the sum of 38 and s

g(t) = 3t+ 4; Find g(−3)

Answers

Answer:

t=-5

Step-by-step explanation:

-3=3t+4

-1=t+4

-5=t

Another question! using compatible numbers, which is the best estimate of (28.5)(7.1)

36

40

210

or 300?

Answers

210 // 28x7=198 rounded equals 200 and 300 would be far off so 210
it would be 210 because 29(7) is 203 and 210 is the closest answer :)

A juice jar is full and holds 6 gallons of water. Thomas pours 1 ¾ gallons from the jar into another container. Susan pours ⅗ gallons into her jug and Daniel pours 3 ½ gallons into another jug. How many gallons of juice is left in the original juice jar?

Answers

Answer:

i forgot

6/3

Step-by-step explanation:

The answer should be 13/40

The rectangle shown has a perimeter of 90 cm and the given area. Its length is 3 more than five times its width.
Write and solve a system of equations to find the dimensions of the rectangle.
W
The length of the rectangle is
cm and the width of the rectangle is
cm

Answers

One is 88...........

West Middle School ordered 121 boxes of markers. If there are 22 teachers, how many boxes does each teacher get? Select the TWO answers represented by a decimal and a fraction.

5.5

22/121

5.05

121/22

Answers

Answer:

a and b

Step-by-step explanation:

Answer:

121/22 and 5.5

Step-by-step explanation:

You divide 121 boxes of markers among the 22 teachers and each teacher get 5 and  a half boxes

121/22=5.5

Can you guys explain how to do this. I’ll mark brainliest I promise

Answers

you have to find what X equals so 3x+18 and 4x+15 should both add up to 180! combine like terms then divide to find x

Answer: the an is 2

Step-by-step explanation:

Somebody help me please

Answers

Answer:

Slope 2.5 y intercept -3

Step-by-step explanation:

slope 2.5 y intercept 3

Which of the following is equivalent to (mn)3? (5 points)


3mn

m3n

mn3

m3n3

Answers

Answer:

m3n3

Step-by-step explanation: you would use the distributive property to distibute 3 into m and n

m3n3 by using distributive property

what is four to the 8th power times 5 to the 8th power

Answers

The answer is 2.56 x 10^10

Answer:2.56^10

Step-by-step explanation:

4 to the 8th power= 65536

5 to the 8th power=390625

65536x390625=2.56^10

Lindsay used two points x,y and x2, y2 to the equation of the line y= mx +b that passes through the points first she used the definition of slope to determine that the value of m is y2-y1/x2-x1. given this information which expression must represent the value of b?​

Answers

Answer:

its A

Step-by-step explanation:

can pls have brainiest

Answer:

y2−

y1

x2

−x1

=

x2y2−x3−y

x2

Step-by-step explanation:

Let's solve for b.

y=mx+b

Step 1: Flip the equation.

mx+b=y

Step 2: Add -mx to both sides.

mx+b+−mx=y+−mx

b=−mx+y

Answer:

b=−mx+y

I tried hope I helped

The area of a rectangle is 82.84 square meters. If the length is 7.6 meters, then what is the width?

hey i need help, anyone i don't get it do i divide or multiply HELPPPPP

Answers

Answer:

The answer is 10.9

Step-by-step explanation

#1 think of the formula of the area

length x width = area

#2 do the oposite of what you would to to find the area to find the width

82.84➗7.6 = 10.9

#3 check your answer

7.6 x 10.9 = 82.84

#3 answer

width= 10.9

Hope this helps!!!!!!

the answer to your question is 10.9

A window-washing crew can finish 15 windows in 18 minutes.

If this crew was assigned to wash all of the 24,348 windows on the outside of the Burj Khalifa at this rate, how long will the crew be washing at this rate?

Answers

Answer:

34321.2 min

Step-by-step explanation:

The Burj Khalifa has in total 28601 windows. On the other hand, we are told the window-washing crew can wash 15 windows in 18 minutes. So, we can use the Rule of three to solve this problem:

If:

15 windows ---- 18 min

28601 windows ---- ?

Then:

? = (28601windows)(18min)/15windows

? = 34321.2min

Answer:

34321.2 min

Step-by-step explanation:

HELP ME PLEASE WITH THIS QUESTION

Answers

Answer:

YES

Step-by-step explanation:

Answer:

Yes is the answer pls mark me brainliest i really need it thanks

5v-15=20
solve for v
can anyone explain what im supposed to do

Answers

Answer:

v=7

Step-by-step explanation:

add 15 to both sides 5v-15+15=20+15

simplify

5v=35

divide both sides by 5

5v/5 = 35/5

and you get 7

hope this helps you

Add 15 + 20 witch equals 35 then divide by 5 v = 7

What does X3+Y3=? I am very confused.

Answers

it equals 3 because (x+y)

Answer:

(X+Y) (X2+Y2-XY)

Step-by-step explanation:

X3+Y3=(X+Y) (X2+Y2-XY) answer

Determine the coordinates of the point shown.

A coordinate grid shown. There are increments of 0.5 for each grid line on each of help will give brainliest .the two axes. A point is located at 3 grid lines to the right and 1 grid line down from the origin.

(1.5, −0.5)
(−0.5, 1.5)
(3, −1)
(1, −1)

Answers

x first so five to the left so it's negative and if each gridline is .5 and were are 5 gridlines aver then .5*5 so -2.5 then y is up so positive and 3 lines so .5*3 so 1.5 so coordinate is (-2.5,1.5)

Answer:the answer is B or (1.5,-.5)

Step-by-step explanation:

is this true??

4/2 = −4/−2 =2

is this true??
−4/2=4/−2=2

Answers

I dunno I’m not good at math
The first one is true the second isn’t
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