Ratios Quiz Review

A unit rate always has a denominator of ___________.

• Zero

• One

• Two

• Three

An equation with two equal ratios is a _____________.

• Unit Rate

• Cross Product

• Proportion

• Ratio

The variable k is typically used to represent what?

• Scale Factor

• Ratio

• Unit Rate

• Cross Product

Select all of the following that are equivalent to the ratio 16:32.

• 16:32

• 1:2

• 4:16

• 2:4

Given the comparison 4 to 8, choose all of the correct ways to write the ratio.

• 1 to 2

• 2 to 1

• 1/2

• 2:1

Solve the following proportion.

 $\frac{y}{12}=\frac{4}{3}$  

• 1/4

• 1

• 9

• 16

Solve the following proportion.
 $\frac{5}{x}=\frac{10}{8}$  

• 6.25

• 4

• 16

• 40

A blueprint has a scale of  $\frac{1}{5}$  inch to 3 feet.  If the blueprint shows a hallway being 2 inches, how many feet is it?

• 30 in.

• 30 ft.

• 6/5 in.

• 6/5 ft.

I need to drive 729 miles. What does my average speed need to be if I want to get there in 18 hours?

• 40.5 miles/hour

• 13,122 miles/hour

• 81 miles/hour

• 67 miles/hour

What is the scale factor?

• k=4

• k=1/4

• k=40/11

• k=18/72