rates ratios and proportions

Find each unit rate.

416 mi in 8 hr

20% of what number is 40

• 20

• 200

• 800

• 8

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

^{What is the ratio of total shapes to circles?}

• 3 : 4

• 4 : 3

• 7 : 3

• 3 : 7

Lynnette can wash 95 cars in 5 days. How many cars does she wash each day?

• 475 cars per day
• 19 cars per day
• .05 cars per day
• 15 cars per day

In a school, the ratio of boys to girls is 4:3. There are 216 boys. How many girls are there?

• 160

• 200

• 180

• 100

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

• $8 per pound

• $5 per pound

• $35 per pound

• 0.125 pounds per dollar

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

Find side length X.

• 16

• 18

• 2.4

• 15

Solve for x 

• x = 6
• x = 25
• x = 28
• x = 17