Proportional Relationships

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.

Front

How do you find the unit rate in a proportional relationship?

Back

To find the unit rate, divide the quantity of one variable by the quantity of the other variable, ensuring the denominator is 1.

Front

What is the unit rate of 60 miles in 1 hour?

Back

60 miles per hour.

Front

How can you determine if a table of values represents a proportional relationship?

Back

A table represents a proportional relationship if the ratios of corresponding values are equivalent.

Front

What is the unit rate for $3.60 for 3 pounds of apples?

Back

$1.20 per pound.

Front

How do you calculate the cost per pound from a total cost and weight?

Back

Divide the total cost by the total weight to find the cost per unit weight.

Front

If a recipe calls for 1/4 cup of water for every 1/2 cup of flour, how do you find the amount of flour needed for a different amount of water?

Back

Set up a proportion based on the original ratio and solve for the unknown quantity.

Front

What is the relationship between distance, time, and speed?

Back

Speed is calculated as distance divided by time.

Front

If Daniel walked 2/5 mile in 1/4 hour, how do you find his speed in miles per hour?

Back

Divide the distance (2/5 mile) by the time (1/4 hour) to find the speed.

Front

What is the speed of Daniel if he walked 2/5 mile in 1/4 hour?

Back

1.6 miles per hour.