Module 1, Topic 3 Review

Question 1

If d = 3/5t, and t = 15, what is the value of d?

Accepted Answer

9

Question 2

Cameron can read 15 pages per minute. What is the equation that can be written for this situation?

Accepted Answer

p = 15t

Question 3

What is the value of x in the equation k = y/x if k = 4/5 and y = 2/3?

Accepted Answer

x = 5/6

Question 4

If 6 out of 15 6th graders are in band and 8 out of 20 7th graders are in band, is there a constant of proportionality?

Accepted Answer

Yes, it is 2/5.

Question 5

If 14 out of 30 boys like math and 16 out of 32 girls like math, is this a proportional relationship?

Accepted Answer

No; 14/30 = 7/15 and 16/32 = 1/2.

Question 6

If x varies directly with y, with a constant of proportionality of 0.6, what is the value of x when y = 7.8?

Accepted Answer

u = 4.68

Question 7

An agent received $17,500 on a sale of $350,000. The same agent received a $20,000 commission. What was the sale?

Accepted Answer

$400,000

Question 8

If a boy weighs 120 lbs on Earth and 106 lbs on Venus, how much is that same boy on Venus if he weighs 180 lbs on Earth?

Accepted Answer

159 pounds

Question 9

A graph that shows direct variation is straight and passes through the origin.

Accepted Answer

True

Question 10

If a painter mixes 6 oz. of green and 9 oz. of white, what is the direct variation equation for this relationship?

Accepted Answer

g = 2/3 w

Questions 10