Proportions Practice

Front

What is a proportion?

Back

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

Front

How do you solve for a variable in a proportion?

Back

Cross-multiply the ratios and then solve for the variable.

Front

What is the scale in a scale drawing?

Back

The scale is the ratio of the drawing's dimensions to the actual dimensions.

Front

If 1 inch equals 2.54 cm, how do you convert inches to centimeters?

Back

Multiply the number of inches by 2.54.

Front

What is the formula for finding the actual length from a scale drawing?

Back

Actual Length = (Length in Drawing) * (Actual Scale / Drawing Scale).

Front

How do you determine if two ratios form a proportion?

Back

Two ratios form a proportion if their cross products are equal.

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 is the denominator.

Front

How do you find the missing value in a proportion?

Back

Set up the proportion and cross-multiply to find the missing value.

Front

What is the unit rate?

Back

The unit rate is a comparison of two different quantities when they are combined into a single unit.

Front

How do you calculate the unit price?

Back

Divide the total price by the number of units.