Unit Rates And Proportional Relationships Practice

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It is expressed as a quantity per one unit of another quantity.

Front

How do you find a unit rate from a given ratio?

Back

To find a unit rate from a ratio, divide the first quantity by the second quantity to get the amount per one unit of the second quantity.

Front

If a car travels 150 miles in 3 hours, what is the unit rate of speed?

Back

The unit rate of speed is 50 miles per hour (150 miles ÷ 3 hours = 50 miles/hour).

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 can you identify a proportional relationship from a table of values?

Back

A proportional relationship can be identified if the ratios of corresponding values in the table are equivalent.

Front

What is the formula for solving proportions?

Back

Front

Back

x = 16 (Cross-multiply: 4 * 20 = 5 * x).

Front

What does it mean if two quantities are directly proportional?

Back

If two quantities are directly proportional, as one quantity increases, the other quantity increases at a constant rate.

Front

How do you graph a proportional relationship?

Back

To graph a proportional relationship, plot the points that represent the quantities and draw a straight line through the origin.

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant value of the ratio between two proportional quantities.