Proportions

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 using cross multiplication?

Back

To solve a proportion using cross multiplication, multiply the numerator of one ratio by the denominator of the other ratio and set the two products equal to each other.

Front

If a/b = c/d, what is the cross multiplication equation?

Back

The cross multiplication equation is a * d = b * c.

Front

What is the first step in solving the proportion 3/4 = x/8?

Back

The first step is to cross multiply: 3 * 8 = 4 * x.

Front

What is the solution to the proportion 3/4 = x/8?

Back

The solution is x = 6.

Front

If 5/10 = x/20, what is x?

Back

x = 10.

Front

What does it mean if two ratios are equivalent?

Back

It means that they represent the same relationship or proportion.

Front

How can you check if two ratios are equivalent?

Back

You can check by cross multiplying and seeing if the products are equal.

Front

What is the value of h in the proportion 4/h = 2/8?

Back

h = 16.

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.