Review Of Ratios, Rates and Percents

Front

What is a Ratio?

Back

A ratio is a comparison of two quantities.

Front

If the ratio of people to cars is 3:5 and there are 30 people, how many cars are there?

Back

50

Front

What is the cost per apple if 8 apples cost $4.72?

Back

$0.59 per apple

Front

What is the ratio of red to yellow marbles if there are 2 red and 5 yellow marbles?

Back

2:5

Front

What is a Rate?

Back

A rate is a ratio that compares two different units, such as miles per hour.

Front

If a car travels 120 miles in 2 hours, what is its speed in miles per hour?

Back

60 miles per hour

Front

What is a Percent?

Back

A percent is a ratio that compares a number to 100.

Front

What is 25% of 200?

Back

50

Front

How do you convert a fraction to a percent?

Back

Multiply the fraction by 100 and add a percent sign.

Front

What is the formula to find a percentage of a number?

Back

Percentage = (Part/Whole) x 100.