Using Rate Language

Front

What is the formula to calculate the price per unit?

Back

Price per unit = Total Price / Number of Units.

Front

If Ms. Klion paid $15.00 for 6 gallons of gasoline, what is the price per gallon?

Back

$2.50

Front

What does a straight line on a graph indicate about the relationship between two variables?

Back

A straight line indicates a constant rate of change between the two variables.

Front

If a person walks 1/2 mile in 1/4 hour, how do you find the distance walked in 2 hours?

Back

First, find the rate: 1/2 mile / 1/4 hour = 2 miles per hour. Then multiply by 2 hours: 2 miles/hour * 2 hours = 4 miles.

Front

How do you calculate the total cost of multiple items?

Back

Total Cost = Price per Item x Number of Items.

Front

If we paid $40 for 8 hamburgers, how do you find the cost of 2 hamburgers?

Back

Cost of 2 hamburgers = ($40 / 8) x 2 = $10.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

How do you determine the unit rate from a ratio?

Back

To find the unit rate, divide both quantities in the ratio by the same number to get a comparison to one unit.

Front

What is the significance of the slope in a graph?

Back

The slope represents the rate of change between the two variables plotted on the graph.

Front

If Jose swims 3 laps in 2 minutes, how do you find the time for 27 laps?

Back

Time for 27 laps = (27 laps / 3 laps) x 2 minutes = 18 minutes.