Mathematics Middle School

Evan worked 9 hours and
made $85.50. Henry worked 6 hours and made $57.00. Are
these two rates proportional?

Answers

Answer 1
Yes. Set up a ratio:
6/9 = 57/85.5
(6*85.5)/9=57, so it’s true.
Answer 2

Answer:

yes both of them make 9.5 the hour I know this because 85.50 divided by 9 is 9.5 9 times 9 is 81 and .5 times 9 is 4.5 so 81+4.5=85.5 and then 57 divided by 6 is 9.5 as well you can do 6 times 9 and you get 54 and then 6 times 0.5 is 3 and 54+3=57

Step-by-step explanation:

sorry for the long answer but just wanted to clearly explain everything!

Related Questions

A doctor conducts an experiment to test new treatments for a medical condition. Of the 16 volunteers in the experiment, 4 do not receive any treatment. What percent of the volunteers do not receive any treatment?

% ?

Answers

4/16 do not receive treatment
which is 25%

25% do not receive treatment

What is the area of the top of the water buoy as shown in the figure?

84.78 square in.
37.68 square in.
113.04 square in.
28.26 square in.

Answers

Answer:

The answer is 28.26 square in

Step-by-step explanation:

As, the diameter if the top = 6 inches

And the area of a circle = 3.14(pi) x radius^2

So here radius = Diameter /2 = 6/2 = 3

So radius = 3 inches

So area = 3.14 x (3)^2

= 3.14 x 9

= 28.26 square in

the answer is 28.26 square inch.

I will mark best answer brainliest

Answers

Answer: -1

Step-by-step explanation:

-8 (-8x - 6) = -6x - 22

distribute

64x + 48 = -6x -22

get rid of the smallest x by adding 6x to both side

70x + 48 = -22

minus 48 to both sides

70x = -70

divide both side by 70

x = -1

X = -1

Lol im not getting brainliest but I’ll Write this anyway

3 to the second power x 3 x 3 x 3=

Simplified into exponential form

Answers

Answer:

27

Step-by-step explanation:

The answer is 27 hope I helped :)

Help please it is graphing

Answers

Here are the pairs:

(from the left)

First group: 3rd graph, y = x - 2, table g

Second group: 2nd graph, y = 2x, table b

Third group: 1st graph, y = x + 2, table m

How would i explain how i got my answer (my answer was 200, all the other numbers were already there)

Answers

Step-by-step explanation:

80 times 2 is 160

Therefore, 100 times 2 is 200

You multiply the denominator and numerator by the same number.

Which of the following numbers is written in scientific notation?
A. 17
B. 17 × 106
C. 3.734 × 10–14
D. 3.734

Answers

Answer:

i think is b

Step-by-step explanation:

Simplify using the Laws of Exponents
not hard :]
but i cant do it XD

Answers

Answer:

j11

Step-by-step explanation:

Help me plz or dont its whatever

Answers

Answer:

i think its 7

Step-by-step explanation:

28 miles per 4 hours, so you divide them both by 4 and get 28 divided 4

and 4 divided by 4. so its 7/1 which just equals 7. please correct me if im wrong good luck.

Hey there!

In order to solve for this particular question that you have asked.. we can just simply divide 28 from 4

Equation: 28 / 4

28 ÷ 4 / 4 ÷ 4

28 ÷ 4 = 7

4 ÷ 4 = 1

New equation: 7 / 1

Simply the newer equation and you have your answer

7 ÷ 1 = 7 / 1 ➡️ 7

Answer: 7 mph. (Miles Per Hour) ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

The dimensions for the rectangle marked 'B' are _____ centimeters and _____ centimeters.

8, 12
3, 8
3, 5

Answers

Is there a picture to go with this?

Answer: a. 8, 12

Step-by-step explanation:

Basing on the picture above, you can readily determine the dimension of the rectangle B.

Its width is 12 cm and its length is 8cm.

Please help me also explain your answer so I can get better at this thank you :)

Decide whether the question is looking for the part, the percent, or the whole.

15% of what number is 132?

The question is looking for the [ part, percent, or whole]

Answers

Answer: 880

Explanation: 132/0.15 = 880 sry it wasnt thorough explanation i dont have time
To get %15 do 132x0.25 the percentage as a decimal that will give us 19.8 so now we know %15=19.8 19 is the whole and 8 is the part

c÷2 when c=26
help me, please

Answers

Answer:

the answer would be 13

Step-by-step explanation:

26/2=13

Answer:

13

Step-by-step explanation:

ita just 26  divided by 2. Hope this helps :)

Jada walked 8 miles to school and then a quarter of that distance again. How far did Jada walk? *
A. 2 miles
B. 10 miles
C. 8 miles
D. 12 miles

Answers

Answer

A . 2

Step-by-step explanation:

A quarter =0.25 miles

jada walked 8 miles to school

0.25

x     8

---------

2

10 miles. A quarter of 8 miles is 2. 2+8=10

The sum of Bernice’s age and her
mother’s age is 63. Bernice is 21. What is her mother’s age?

Answers

Answer:

her age would be 42

Step-by-step explanation:

63-42=21

42 this is because 63-21=42

Simplify -2[9 - (x + 7)].

-32 - x
-4 - x
-4 + 2x
-32 + 2x

Answers

-2(9 - x - 7)
= -2(2 - x)
= -4 + 2x

Answer:
-4 + 2x

Two different clothing detergents are on sale at Shop Mart. Clean White is priced at $5.76 for 32 fluid ounces. Clean Bright is priced at $7.20 for 48 fluid ounces. Which set of ratio tables is correct?

Answers

Answer:

$17.35

Step-by-step explanation:

Answer:

$17.35

Step-by-step explanation:

Jeremiah opened a savings account with a one-time deposit of $500. His savings account will pay a 5% simple interest per year. His brother, Brian, opened another savings account with a one-time deposit of $200. Brian’s savings account will pay 3% compounded annually. Who would earn more interest, to the nearest dollar, in 2 years?
A.
Jeremiah will make $50 more than Brian.

B.
Brian will make $212 more than Jeremiah.

C.
Jeremiah will make $38 more than Brian.

D.
Brian will make $12.00 more than Jeremiah.

Answers

Answer:

A

Step-by-step explanation:

its just simple math

A I’m only doing this for my own question but yea

Which graph shows a proportional relationship between the number of hours of renting a lawn mower and the total amount spent to rent the lawn mower?

Answers

Answer:

1

Step-by-step explanation:

the 1 one

I think the answer is probably 1

Find the commission.

Answers

Answer:

63.9

Step-by-step explanation:

Convert 9% to a decimal: 0.09

710×.09=63.9

Please give me brainliest

See picture for question

Answers

awser  :5.4n 5 aka #3

------------------------------------------

Answer:

5.4n

Step-by-step explanation:

4n + 3.5 + 2.1n

4n+ 3.5 = 7.5n

7.5n - -2.1= 5.4n

Write each fraction as a percent. 2/10, /4, /20

Answers

Answer:

2/10 is 20% 4/20 should also be 20 %

Step-by-step explanation:

20% and .004% and .2% is the answer

The dot plot shows predictions for the winning time in the 200-meter sprint. The winner finished the race in 22.3 seconds. What is the greatest percent error among the predictions?

Answers

Answer:

3.2%

Step-by-step explanation:

Answer:

The required greatest percent error among the predictions is 1.773% (Approximately 1.8%).

Step-by-step explanation:

Given that,

The dot plot shows predictions for the winning time in the​ 200-meter sprint.
The winner finished the race in 22.5 seconds.

We have to determine,

What is the greatest percent error among the​ predictions.

According to the question,
The true finishing time is 22.5 seconds.
The prediction furthest from this is 22.9 seconds.
This is a difference of 22.9 - 22.5 = 0.4 seconds. 

Divide this over the true time value to get prediction,
0.4/22.5 = 0.0177 = 1.77 (Approximately)

Move the decimal point to the right 2 spots to get to 1.773% (Approximately 1.8%).

Hence, The required greatest percent error among the predictions is 1.773% (Approximately 1.8%).


Hope my answer helps you.

:)

Please mark my answer as the BRAINLIEST. Plssssssssssssssssssss

Last year there were 205 ducks living on the pond. This year there are 20 % more ducks living on the pond. Is this a percent increase or decrease? *

Answers

Answer:

This is an increase.

Step-by-step explanation:

It says 20% *more* ducks which means the number is getting bigger.

Answer:

I think decrease

Step-by-step explanation:

20%/205= 0.000975

Graph -3.5 and -1.5 on the number line.

Answers

Answer:

ok i kow this hold on

Step-by-step explanation:

Choose the set of equivalent fractions that correctly uses the LCD for these fractions: 2/9 and 5/12

Answers

The answwer would be4/6 and 1/6

Help me do this. I am confused.

Answers

Answer:

btw plz dont report me

Step-by-step explanation:

how many problems????

I will mark brainliest if correct

Answers

Answer:

E)40 Mrs. White

Step-by-step explanation:

do you need an explanation?

Simplify the expression

-5.5(2 - 6x) - 2.5x

Answers

Distribute -5.5(2-6x) first
-5.5 x 2 = -11 & -5.5 x -6x =33x
=> 33x - 11

33x - 11 -2.5x
subtract common like terms
33x - 2.5x = 30.5x

Answer: 30.5x -11

elp meEeEeEeEEeEEe plzzz

Answers

Answer:

1. 6/15, or 2/5.

2. Apples cost more per pound.

Step-by-step explanation:

1. Brian reads 2/15 in 20 minutes, like we were told. It's easy to determine how much of his book he can read within an hour, by using the ratio 1/15:10. There's clearly 1/15 in 10 minutes, 2/15 in 20, 3/15 in 30, and so on. This would result in him reading 6/15's of his book in an hour.

2.

Peaches

0.6÷8/5 converts to .6 × 5/8. The result is .375.

Apples

1.75 ÷7/2 converts to 1.75×2/7. The result of this equation is .5, so therefore, the apples cost more per pound.

8/15 because 2/15 *3 is 6/15 + 2 is 8 and you multiply by 3 because 60/20=3

My daughter need help on this and I am not good at telling time like that

Answers

Answer:

7:42

Step-by-step explanation:

Answer:

The time is 7:37, you can tell because the smaller hand is close to the 8 but it is not on the 8 just yet because the big hand has not passed 12

Step-by-step explanation:

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