Ratios and Rates Review

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:b'.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Front

What is the ratio of vowels to consonants in the English alphabet?

Back

The ratio of vowels (A, E, I, O, U) to consonants (21 letters) is 5:21.

Front

If there are 21 red apple trees and 18 green apple trees, what is the ratio of green apple trees to red apple trees?

Back

The ratio of green apple trees to red apple trees is 6:7.

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as speed (miles per hour) or price per item.

Front

How do you convert centimeters to meters?

Back

To convert centimeters to meters, divide the number of centimeters by 100.

Front

If Sulta Kosen measures 251 cm, how tall is he in meters?

Back

He is 2.51 meters tall.

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, a quantity to increase or decrease its size.

Front

In a band, if there are 2 percussionists for every 13 marching instruments, what is the total ratio of percussionists to band members?

Back

The total ratio of percussionists to band members is 2:15.

Front

How do you find the total number of parts in a ratio?

Back

Add the numbers in the ratio together to find the total number of parts.