Ratio and Proportions MtM Unit Test

Front

What is a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.

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 proportional relationship?

Back

To solve for a variable in a proportional relationship, you can cross-multiply and then isolate the variable.

Front

What is the formula to calculate total earnings based on hourly wage and hours worked?

Back

Total earnings can be calculated using the formula: Total Earnings = Hourly Wage × Hours Worked.

Front

If Calvin earns $15.50 per hour, how much will he earn for 10 hours?

Back

Calvin will earn $155.00 for 10 hours (15.50 × 10 = 155).

Front

What does the variable 'x' represent in the equation y=15.5x?

Back

In the equation y=15.5x, 'x' represents the number of hours Calvin works.

Front

What does the variable 'y' represent in the equation y=15.5x?

Back

In the equation y=15.5x, 'y' represents Calvin's total earnings.

Front

How can you determine if two ratios are in proportion?

Back

Two ratios are in proportion if their cross products are equal.

Front

What is the cross-multiplication method?

Back

The cross-multiplication method involves multiplying the numerator of one ratio by the denominator of the other ratio and vice versa.

Front

If Calvin works 21 hours, how do you calculate his earnings?

Back

To calculate Calvin's earnings for 21 hours, use the formula: Earnings = 15.5 × 21 = $325.50.