Problem Solving About Rate and Unit Rate

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

• $8 per pound

• $35 per pound

• $5 per pound

• $0.125 per pound

A store has 120 customers in 6 hours. What is the unit rate in customers per hour?

• 16 customers per hour

• 12 customers per hour

• 20 customers per hour

• 15 customers per hour

Will spent $3.75 for 3 pounds of granola. What is his unit rate in dollars per pound?

• $.50 per pound

• $1.25 per pound

• $3 per pound

• $2.50 per pound

A cashier at the grocery store rung up 2 customers in 8 minutes. At this rate, how many customers can he ring up in 30 minutes?

• 16 customers

• 10.5 customers

• 7.5 customers

• 14 customers

• 64 gallons

• 67.5 gallons

• 82.5 gallons

• 90 gallons

• 2 HOURS
• 3 HOURS 
• 4 HOURS
• 5 HOURS

• A
• B
• C
• D

Caleb drives 180 miles in 3 hours. At this rate, how many miles will he drive in 12 hours? (a)  

• 720 miles

• 540 miles

• 60 miles

150 grams of fertilizer is required for a land area of 6 square acres.  At this rate, how many grams of fertilizer is needed for 13 square acres?

• 25 grams

• 300 grams

• 325 grams

• 310 grams

A machine assembles 345 metal parts in 15 minutes, then the same machine can assemble 575 metal parts in

_______ minutes.

Mathematical Equivalence

ON