4th Hour: Practice Unit Rate

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 12 pencils cost $3.60, the unit rate is $0.30 per pencil.

Front

How do you calculate the unit rate?

Back

To calculate the unit rate, divide the total cost by the number of items. For example, to find the cost per pencil, divide $3.60 by 12.

Front

If 12 pencils cost $3.60, what is the cost per pencil?

Back

$0.30 per pencil.

Front

What is the formula for calculating the rate of change?

Back

Rate of change = (Change in value) / (Change in time).

Front

If a graph shows savings of $94 in 2 weeks, how much will be saved in 4 weeks?

Back

$188.00.

Front

What does a slope of 6 represent in a graph?

Back

A slope of 6 indicates that for every unit increase in the x-axis, the y-axis increases by 6 units.

Front

What is the unit rate of 40 miles driven in 2 gallons of gas?

Back

20 miles per gallon.

Front

How do you find the total cost if the unit rate is known?

Back

Multiply the unit rate by the number of items. For example, if the unit rate is $0.30 per pencil and you buy 12 pencils, the total cost is $0.30 x 12 = $3.60.

Front

What is the significance of unit rates in real-life situations?

Back

Unit rates help compare prices, speeds, and efficiencies, making it easier to make informed decisions.

Front

If a car travels 120 miles in 2 hours, what is the unit rate of speed?

Back

60 miles per hour.