Unit Review Ratios and Proportions

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound
• $5 per pound
• $35 per pound
• 0.125 pounds per dollar

A store sees 120 customers in 8 hours. What is the unit rate (in customers per hour)?

• 16 customers per hour
• 15 customers per hour
• 12 customers per hour
• 20 customers per hour

What number is missing?

• 12
• 3
• 11
• 13

Ben plays basketball every 6 times in a  3 weeks. At this rate, how many times does he play basketball in 10 weeks?

• 20
• 30
• 45
• 50

Hamburger sells for 3 pounds for $6. If Alicia buys 10 pounds of hamburger, how much will she pay?

• $30
• $20
• $60
• $10

Jasmin is baking a cake that calls for 1/4 cup water for every 1/2 cup of flour. How much flour will she need if she uses 1.5 cups of water?

• 4 cups of flour
• .75 cups of flour
• 3 cups of flour
• .25 cups of flour

Daniel walked 2/5 mile in 1/4 hour. How fast did he walk, in miles per hour?

• 1.25 miles per hour
• 1/10 miles per hour
• 1.6 miles per hour
• 2 miles per hour

What is a proportion?

• When two ratios can be simplified
• When two ratios are equivalent and show the same value
• When two ratios have the exact same numbers
• When two ratios can be multiplied by 2

Solve the proportion:

• c = 4

• c = 8

• c = 14

• c = 10

Solve for x 

• x = 6
• x = 25
• x = 28
• x = 17