Ratios & Ratio Tables

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, showing how many times one value contains or is contained within the other.

Front

What is a ratio table?

Back

A ratio table is a table that displays pairs of numbers that form a ratio, helping to visualize the relationship between the quantities.

Front

How do you find a missing value in a ratio table?

Back

To find a missing value, use equivalent ratios to set up a proportion and solve for the unknown.

Front

What is a proportion?

Back

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

Front

How do you solve a proportion?

Back

Cross-multiply the terms and then solve for the unknown variable.

Front

If the ratio of water to sugar is 4:2, what is the equivalent ratio for 8:4?

Back

The ratio 8:4 is equivalent to 4:2 because both can be simplified to 2:1.

Front

What is the value of B in the ratio table if A is 28 and the ratio is 4:7?

Back

B = 49, because 28 * (7/4) = 49.

Front

If 2 tablets of iodine are needed for 1 quart of water, how many tablets are needed for 3 quarts?

Back

6 tablets, because 2 tablets x 3 quarts = 6 tablets.

Front

What is the missing number in the ratio table if the ratio is 3:5 and the known value is 15?

Back

The missing number is 25, because 15 * (5/3) = 25.

Front

Back

k = 5.