Compare Unit Rates: Consumer Math

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities where one of the quantities is expressed as a quantity of one. For example, if a car travels 300 miles in 5 hours, the unit rate is 60 miles per hour.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the total quantity by the number of units. For example, if 12 apples cost $3, the unit rate is $3 ÷ 12 = $0.25 per apple.

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What is the importance of comparing unit rates?

Back

Comparing unit rates helps consumers determine which option offers the best value for their money, allowing for informed purchasing decisions.

Front

If Make Music charges $525 for 10 hours of lessons, what is the unit rate per hour?

Back

The unit rate is $525 ÷ 10 hours = $52.50 per hour.

Front

If Piano Play offers 12 hours of lessons for $540, what is the unit rate per hour?

Back

The unit rate is $540 ÷ 12 hours = $45 per hour.

Front

Which is the better deal: $52.50 per hour or $45 per hour?

Back

$45 per hour is the better deal.

Front

How do you find the better value when comparing prices?

Back

To find the better value, calculate the unit rates for each option and compare them. The option with the lower unit rate is the better value.

Front

If Charge Zone batteries cost $15.80 for 20 batteries, what is the unit rate per battery?

Back

The unit rate is $15.80 ÷ 20 batteries = $0.79 per battery.

Front

If Electrocell batteries cost $8.10 for 10 batteries, what is the unit rate per battery?

Back

The unit rate is $8.10 ÷ 10 batteries = $0.81 per battery.

Front

Which brand of batteries is the better value: $0.79 per battery or $0.81 per battery?

Back

$0.79 per battery (Charge Zone) is the better value.