Examkin

Question

Difficulty: MediumUnit Rates

A field kitchen consumes 1515 pounds of coffee over a 44-hour breakfast service. What is the unit rate of coffee consumption, in ounces per hour?

Answer: 60 ounces per hour

Answer

60
The unit rate is found by first converting the total weight into the requested units. Since 1 pound equals 16 ounces, 15 pounds is equal to 240 ounces. Dividing this 240 ounces by the 4 hours of service gives the correct unit rate of 60 ounces per hour.

Step-by-Step Solution

1
Convert the total coffee weight from pounds to ounces.
15×16=24015 \times 16 = 240 ounces
The question specifically asks for the rate in ounces per hour, and there are 16 ounces in 1 pound.
2
Calculate the unit rate by dividing the total ounces by the total hours.
240÷4=60240 \div 4 = 60 ounces per hour
A unit rate represents the quantity of one variable per single unit of another variable, found here by dividing total consumption by total time.

Key Concept

Calculating Unit Rates with Unit Conversions
Rate this question

Topics

Unit Rates

More questions from this topic