7.3 Proportions Test

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal. For example, if a/b = c/d, then a, b, c, and d are in proportion.

Front

How do you solve a proportion?

Back

Front

What is the formula to find the height of an object using shadows?

Back

Front

If a 5-pound turkey feeds 8 people, how do you find the amount needed for 20 people?

Back

Front

What is the percentage formula?

Back

Front

How do you calculate the percentage of successful attempts?

Back

Front

What is the relationship between hours worked and pictures painted in a proportion?

Back

In a proportion, if you know the rate of work (pictures per hour), you can find the unknown by setting up a ratio.

Front

What does it mean to keep a percentage of a paycheck?

Back

Keeping a percentage of a paycheck means saving a portion of your earnings, calculated by multiplying your total earnings by the percentage.

Front

How do you convert a fraction to a percentage?

Back

To convert a fraction to a percentage, divide the numerator by the denominator and multiply by 100.

Front

What is the significance of cross-multiplication in proportions?

Back

Cross-multiplication allows you to eliminate the fractions in a proportion, making it easier to solve for the unknown.