3.3 Equivalent Ratio Tables - Missing Values

Front

What is an equivalent ratio?

Back

An equivalent ratio is a ratio that expresses the same relationship between two quantities, even if the numbers are different. For example, the ratios 1:2 and 2:4 are equivalent.

Front

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

Back

To find a missing value in a ratio table, you can use cross-multiplication or set up a proportion based on the known values.

Front

What is the ratio of red paint to yellow paint if 3 oz of red is mixed with 5 oz of yellow?

Back

The ratio of red paint to yellow paint is 3:5.

Front

If Kevin uses 9 oz of red paint, how much yellow paint is needed?

Back

If the ratio is 3:5, then for 9 oz of red paint, 15 oz of yellow paint is needed.

Front

What is the value of B if the ratio is 2:5 and the first value is 20?

Back

If the ratio is 2:5 and the first value is 20, then B = 50.

Front

What is the value of C if the ratio is 4:1 and the first value is 40?

Back

If the ratio is 4:1 and the first value is 40, then C = 10.

Front

How do you set up a proportion to solve for a missing value?

Back

To set up a proportion, write two ratios equal to each other, then cross-multiply to solve for the missing value.

Front

What is the missing value if the ratio is 3:4 and the known value is 12?

Back

If the ratio is 3:4 and the known value is 12, the missing value is 16.

Front

What does it mean if two ratios are equivalent?

Back

If two ratios are equivalent, it means they represent the same relationship between quantities, even if the actual numbers differ.

Front

If the ratio of A to B is 1:3 and A is 7, what is B?

Back

If A is 7 and the ratio is 1:3, then B = 21.