Ratios/Rates/Proportions RGNC

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 can a ratio be written?

Back

A ratio can be written in three ways: as a fraction (a/b), with a colon (a:b), or in words (a to b).

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is 1. It shows how much of one quantity corresponds to one unit of another quantity.

Front

Convert 128 Miles/4 Hours to a unit rate.

Back

32 Miles/Hour.

Front

What is the simplest form of the ratio 6 red LEGOS to 3 yellow LEGOS?

Back

The simplest form is 2:1.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

Solve the proportion: 3/4 = x/12. What is x?

Back

x = 9.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, and they represent the same relationship between quantities.

Front

If a car travels 150 miles in 3 hours, what is its speed in miles per hour?

Back

The speed is 50 miles per hour.