Percents, proportions and equations

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

• 
• 
• 
• 

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Martin's class has 28 students in it. 25% of those students are home sick today. How many students are home sick?

• 4 students

• 7 students

• 11 students

• 13 students

Tags

CCSS.6.RP.A.3C

Determine if you are finding the part, percent, or whole:

What is 20% of 60?

• Part

• Percent

• Whole

Tags

CCSS.6.RP.A.3C

Determine if you are finding the part, percent, or whole:

12 is 50% of what number?

• Part

• Percent

• Whole

Tags

CCSS.6.RP.A.3C

Which proportion matches the following:

34% of what number is 51?

• 
  

  $\frac{34}{x}=\frac{51}{100}$

• $\frac{51}{x}=\frac{34}{100}$

• $\frac{34}{51}=\frac{x}{100}$

Tags

CCSS.7.RP.A.2C

Which proportion matches the following:

2 is 10% of what number?

• $\frac{x}{2}=\frac{10}{100}$

• $\frac{2}{x}=\frac{10}{100}$

• $\frac{2}{10}=\frac{x}{100}$

Tags

CCSS.7.RP.A.2C

Write an equation for the following:

Find 9% of $10,000.

• $x=9\cdot10,000$

• $x=0.09(10,000)$

• $9=x\cdot10,000$

• $10,000=0.9\cdot x$

Tags

CCSS.6.RP.A.3C

Write an equation for:
33 is what percent of 100?

• $100=33\cdot x$

• $x=0.33\cdot100$

• $33=x\cdot100$

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

CCSS.7.EE.B.4

Use the percent proportion or percent equation to answer the following:

A person ate 2400 calories in a day. Of these, 36% came from fat. How many calories came from fat?

• 984

• 830

• 1142

• 864

Tags

CCSS.6.RP.A.3C

Use the percent proportion or percent equation to answer the following:

The hockey team won 63 out of the 84 games it played this year. What percent of the games did the team win?

• 30%

• 67%

• 75%

• 80%

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3