Ratio, Rate and Proportions

In an animal shelter, the ratio of dogs to cats is 5 to 3. There are 25 dogs.  Write and solve a proportion to find the number c of cats.

• c=15

• c=18

• c=21

• c=16

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

• $30

• $20

• $60

• $10

Find the unit rate of 624 calories in 3 servings.

• 872 calories per serving

• 208 calories per serving

• 624 calories per serving

• 621 calories per serving

What is the unit rate if there are 92 miles driven using 4 gallons of gas?

• 21 miles per gallon

• 22 miles per gallon

• 23 miles per gallon

• 96 miles per gallon

Solve the proportion:

• 4

• 8

• 14

• 10

Austin mowed 7 lawns in 4 hours. At that rate, how long will it take him to mow 21 lawns?

• 11 hours

• 12 hours 

• 21 hours

•  28 hours.

A tree stands 20 ft high with a shadow of 2 ft long.  If the tree next to it is 40ft tall, how long would its shadow be?

• 4ft

• 2ft

• 1ft

• 3ft

You earn $15 every 3 weeks. At this rate, how much will you earn in 5 weeks?

• $25

• $35

• $5

• $10

Find a ratio equivalent to 35/55:

• 7/11

• 3/5

• 70/100

• 15/25

Melissa drives 238 miles in 5 hours. What is her average rate of speed?

• 40 MPH

• 46 MPH

• 48 MPH

• 50 MPH