Unit rates

A rate is a ratio that compares

• A part to a part

• A part to a whole

• Quantities with different units

• Quantities with the same units

A person runs 1 4 of a mile in 1 32 of an hour. Compute the unit rate by setting up a complex fraction and simplifying.

• 4 miles per hour

• 6 miles per hour

• 8 miles per hour

• 12 miles per hour

If Maya makes $10 an hour at her after school job, how many hours will it take her to earn $150?

• 10 hours

• 1.5 hours

• 15 hours

• 20 hours

A water sprinkler system can water 1 5 of a yard in 1 10 of a hour. Compute the unit rate by setting up a complex fraction and simplifying.

• 1 yard per hour

• 2 yard per hour

• 5 yard per hour

• 10 yard per hour

A car is going 50 miles per hour. A rate that describes this would have units of

• Miles and cars

• miles and hours

• miles only

• hours only

Mark's dog ran 3/4 of a mile in 1/4 of an hour. Compute the unit rate from the complex fraction 3/4 1/4 miles per hour.

• 2 miles per hour

• 3 miles per hour

• 4 miles per hour

• 6 miles per hour

You're throwing a party, and you ordered 15 pizzas for your guests. Your total came to $97.50. What was your unit cost per pizza?

• $4.95 per pizza

• $5.75 per pizza

• $7.25 per pizza

• $6.50 per pizza

The flow rate of the gas pump at Bob's Gas Station is 2/3 of a gallon in 1/9 of a minute. Compute the unit rate of gallons per minute.

• 4 gallons per minute

• 6 gallons per minute

• 8 gallons per minute

• 12 gallons per minute

After 3 hours, Ernie had travelled 195 miles. If he travels at a constant speed, how far will he have travelled after 5 hours?

• 400 miles

• 325 miles

• 575 miles

• 650 miles

Jack used 1/2 of a bag of okra to make 1/4 of a gallon of jambalaya. If Jack's recipe is for 1 gallon of jambalaya, how much okra will he need to make double the recipe?

• 1 bag of orka

• 2 bags of of orka

• 3 bags of orka

• 4 bags of orka