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.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a proportion?

Back

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

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CCSS.7.RP.A.2A

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.

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CCSS.7.RP.A.2C

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.

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CCSS.3.OA.A.3

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).

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CCSS.5.NBT.B.7

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.

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CCSS.HSF.LE.B.5

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.

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CCSS.HSF.LE.B.5

Front

How can you determine if two ratios are in proportion?

Back

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

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CCSS.7.RP.A.2A

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.

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CCSS.6.RP.A.3A

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.

Tags

CCSS.7.EE.B.3