MATHEMATICS MIDDLE SCHOOL

Hank is painting his grandfather's fence. He painted 40 linear feet in 85 minutes. He still has 360 linear feet to paint. His cousins, Sam and Alex, come to help. Sam paints twice as fast and Alex paints half as fast as Hank. Find the constant of proportionality that relates the current fence painting rate? (round to nearest tenth)A) 0.9
B) 1.2
C) 1.6
D) 2.4

Answers

Answer 1
Answer: The correct answer for the question that is being presented above is this one: "C) 1.6." Hank is painting his grandfather's fence. He painted 40 linear feet in 85 minutes. He still has 360 linear feet to paint. His cousins, Sam and Alex, come to help. Sam paints twice as fast and Alex paints half as fast as Hank. The constant of proportionality that relates the current fence painting rate is 1.6.
Answer 2
Answer:

Answer: 1.6

Step-by-step explanation:

k =  y/x= 40 +80 +20 / 85 = 140/ 85 =1.6

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A consumer survey was taken in a town with 18000 homes. Of the 360 homes surveyed, 48 had computers. On the basis of this survey, estimate the number of homes in the town they have computers.

Answers

18000 divided by 360, then multiply that new number with 48. i believe that is the correct math...

Tell whether x and y show direct variation.
xy=5

Answers

Form of direct variation looks like y = kx, where k is any constant number (2, 3/4, 1/3, etc)

So here you have xy = 5.

Divide both sides by x, and you have y = 5/x.

So it is not direct variable, it is inverse variation.
direct variation is when a=x/y a stays constant so when x goes up, then y also goes up so lets say a=2 then 2=x/y so if x is 2 then y=1 if x is 4 then y=2

indirect variation is a=xy where when x goes down y goes up so less say a=2 then if x=2 then y=1 if x=1 then y=2


for number 9. it shows direct variation because when x goes up, y also must go up

The Corner Cafe recently served 16 pastries, including 2 bran muffins. What is the experimental probability that the next pastry served will be a bran muffin?Write your answer as a fraction or whole number.
P(bran muffin) =

Answers

Answer:

P = 2/16 This is based on 14/16 chance that the next pastry will be something else.

Step-by-step explanation:

We can also expand and say P= 2/16 = 1/8

Not P= 7/8

Compare the two functions give. explain which function has the greater rate of change

Answers

what are the two functions. you have to show the two functions in order for me to answer your question.

A painter mixed 1
7
quart of red paint with
6
7
blue paint to make purple paint.

1
1
7

1
7

1
7

1
7

1
7

1
7

1
7



How much purple paint did the painter make?

The painter made quart of purple paint.

Answers

the painter didn't make purple paint they only made one quart of red paint

$120
for 5 days of work​

Answers

I think you have to multiply them
Like
120 *5 = 600
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