Ratios Rates Unit Rates

Which is NOT equivalent to 3:5?

• 15:25

• 9:15

• 21:28

• 30:50

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

A sixth-grade math teacher can grade 25 homework assignments in 20 minutes. Is he working at a faster rate or slower rate than grading 36 homework assignments in 30 minutes?

• Slower rate

• Faster rate

• He didn't grade them

• Everyone got 100

Mr. Keys made $90 in 5 hours.  What is the unit rate?  

• $18 per hour

• $1 in 18 hours

• $90:5h

• 5 to 90

Ashley biked 32 miles in 2 hours. Mike biked 36 miles in 3 hours. How much farther can Ashley bike than Mike in 5 hours if they both continue at the same rate?

• 80

• 60

• 40

• 20

If you have a 3:2 ratio of cats to dogs and there are 18 cats, how many dogs are there?

• 8

• 10

• 12

• 14

If a car travels 300 miles on 10 gallons of gas, what is the unit rate of miles per gallon?

• 30 miles/gallon

• 10 miles/gallon

• 20 miles/gallon

• 40 miles/gallon

If a printer prints 240 pages in 8 minutes, what is the unit rate of pages per minute?

• 30 pages/minute

• 20 pages/minute

• 40 pages/minute

• 25 pages/minute

Match the following vocabulary terms to their definitions.

• unit rate

• a comparison of two quantities with units when the quantity in the denominator is 1

• rate

• comparison of two quantitities

• ratio

• a comparison of two quantities with units

The car travels 440 miles in 8 hours. What is the unit rate?

• 12 miles in 1 hour

• 55 miles in 1 hour

• 110 miles in 1 hour

• 44 miles in 1 hour