Mod 8 PostTEST: Ratios, Rates, & Proportions

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 find an equivalent ratio?

Back

To find an equivalent ratio, you can multiply or divide both terms of the ratio by the same non-zero number.

Front

What is the ratio of girls to boys if there are 5 boys and 7 girls?

Back

7 to 5

Front

If 2 tablets of iodine disinfect 1 quart of water, how many tablets are needed for 4 quarts?

Back

8 tablets

Front

What is a rate?

Back

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

Front

What is a proportion?

Back

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

Front

How can you check if two ratios form a proportion?

Back

You can check if two ratios form a proportion by cross-multiplying and seeing if the products are equal.

Front

What is the equivalent ratio of 3:4?

Back

6:8

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

2 to 3

Front

What is the simplest form of the ratio 12:20?

Back

3:5