Proportional Relationships Unit Rate

What is the ratio of red apples to green apples

• 7 apples to 3 green

• 4 red apples to 7 apples

• 4 red apples to 3 green apples

• 3 green apples to 4 red apples

In a certain apartment building, the ratio of tenants to cars is 3:5. If there are 30 tenants, how many cars are there?

• 35

• 60

• 18

• 50

Which is NOT equivalent to 3:5?

• 15:25

• 9:15

• 21:28

• 30:50

Elijah earn $200 for 8 hours of work. What is the unit rate (in dollars per hour)?

• $50 per hour

• $12 per hour

• $192 per hour

• $25 per hour

Alycia earned $20.40 in 3 hours. What is her unit rate in dollars per hour?

• $7 per hour

• $6 per hour

• $6.80 per hour

• $17.40 per hour

Does the table represent a proportional relationship?

• Yes.

• No.

• A
• B
• C
• D

• A 

• B

• C

• None of ratios are equivalent.

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

The constant of proportionality in the equation y = ½x is _______. 

• x

• y

• 1/2

• 2