Setting Up Percent Proportions

What is the correct proportion for the following problem:

43 is what percent of 60?

• $\frac{43}{60}=\frac{100}{x}$

• $\frac{60}{43}=\frac{x}{100}$

• $\frac{43}{60}\equiv\frac{x}{100}$

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CCSS.7.RP.A.3

CCSS.7.RP.A.2

What is the correct proportion for the following problem:

90% of 80 is what number?

• $\frac{x}{80}=\frac{90}{100}$

• $\frac{80}{x}=\frac{90}{100}$

• $\frac{80}{90}=\frac{x}{100}$

• $\frac{90}{80}=\frac{100}{x}$

Tags

CCSS.7.RP.A.2C

What is the correct proportion for the following problem:

What is 20% of 45?

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CCSS.7.RP.A.2C

18 is 40% of what number?

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CCSS.7.RP.A.2C

7 is what percent of 56?

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CCSS.7.RP.A.3

What is 45% of 50?

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CCSS.6.RP.A.3C

Which of these proportional equations would you use to find the missing pieces of a percent problem, using the words "OF and IS"?

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CCSS.7.RP.A.3

CCSS.7.RP.A.2

Which of these proportional equations would you use to find the missing pieces of a percent problem, using the words "Part and Whole"?

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CCSS.7.RP.A.3

CCSS.7.RP.A.2

What is the correct proportion for the following problem:

Take 25% off of a bill of $65. How much did you save?

• $\frac{65}{x\ off}=\frac{25\ off}{100}$

• $\frac{25\ off}{65}=\frac{x\ off}{100}$

• $\frac{x\ off}{65}=\frac{25\ off}{100}$

• $\frac{100}{x\ off}=\frac{25\ off}{65}$

Tags

CCSS.7.RP.A.2C

What is the correct proportion for the following problem:

A realtor make 2.5% commisoin on each house he or she sells. How much commission would the realtor make if they sell a house for $325,000?

• $\frac{x}{325,000}=\frac{2.5}{100}$

• $\frac{2.5}{x}=\frac{325000}{100}$

• $\frac{x}{325,000}=\frac{100}{2.5}$

• $\frac{325000}{x}=\frac{2.5}{100}$

Tags

CCSS.7.RP.A.2C