Ratios and Proportions 6.12

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, always having a denominator of 1.

Front

How do you express a proportion?

Back

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

Front

What is the ratio of single hits to homeruns if there are 4 single hits and 1 homerun?

Back

The ratio of single hits to homeruns is 4 to 1.

Front

How do you calculate the ratio of a part to a whole?

Back

To calculate the ratio of a part to a whole, divide the part by the whole and simplify if necessary.

Front

What is the total number of balls in the PE closet if there are 2 footballs, 6 tennis balls, 10 golf balls, and 3 baseballs?

Back

The total number of balls is 2 + 6 + 10 + 3 = 21.

Front

What is the ratio of tennis balls to total balls in the PE closet?

Back

The ratio of tennis balls to total balls is 6/21, which simplifies to 2/7.

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities.

Front

How can you represent a proportion using a table?

Back

A proportion can be represented in a table by showing equivalent ratios in corresponding columns.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first quantity is the numerator and the second quantity is the denominator.

Front

What is a common method to solve proportion problems?

Back

A common method to solve proportion problems is cross-multiplication.