Review Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Front

How do you calculate miles per gallon (MPG)?

Back

To calculate MPG, divide the number of miles traveled by the number of gallons of gas used.

Front

What is a unit rate?

Back

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

Front

If a car travels 320 miles in 8 hours, what is its speed in miles per hour?

Back

40 miles per hour.

Front

How do you find the total earnings over a period of time based on a rate?

Back

Multiply the rate of earning by the number of time periods.

Front

What does it mean if 1 in every 6 oranges is rotten in a box of 48?

Back

It means that for every 6 oranges, 1 is rotten. In a box of 48, there are 8 rotten oranges.

Front

How do you convert minutes to hours when calculating speed?

Back

Divide the number of minutes by 60 to convert to hours.

Front

What is the formula to find the number of rotten oranges in a box?

Back

Number of rotten oranges = Total oranges / Ratio of good oranges.

Front

If a bus travels 36 miles in 45 minutes, how do you find the distance it travels in 60 minutes?

Back

First, find the speed in miles per minute, then multiply by 60.

Front

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

Back

Distance = Rate × Time.