Using proportions to solve percent problems.

What is the percent proportion?

• $\frac{part}{whole}=\frac{\%}{100}$

• $\frac{whole}{part}=100\%$

In the 6th grade there are 48 females and 75 total students. Which proportion could be used to find the percent of students that are female in the 6th grade?

• $\frac{48}{75}=\frac{x}{100}$

• $\frac{x}{75}=\frac{48}{100}$

What is 11% of 200?

Which proportion is set up correctly:

• $\frac{x}{200}=\frac{11}{100}$

• $\frac{x}{11}=\frac{100}{200}$

• $\frac{11}{x}=\frac{200}{100}$

• $\frac{200}{x}=\frac{11}{100}$

Tags

CCSS.6.RP.A.3C

What is 24% of 135?

• 28.6 - bummed
• 30.8 - confused
• 32.4 - excited
• 32.9 - shocked

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.3

What is 24% of 135? (Hint: use the percent proportion to find the "part". 24 is your percent over 100 and 135 is your whole).

• 28.6

• 30.8

• 32.4

• 32.9

A person ate 2400 calories in a day (this is your whole). Of these, 36% (this goes over 100) came from fat. How many calories came from fat? (Let x represent your part.)

• 984

• 830

• 1142

• 864

There are 36 carpenters in a crew. On a certain day, 29 were present. What percent showed up for work? (round to the nearest tenth).

• 70.5%

• 64.2%

• 29.3%

• 80.6%

A student answered 86 problems on a test correctly and received a grade of 98%. How many problems were on the test, if all the problems were worth the same number of points? (round to the nearest whole number). Hint: you are looking for the "whole".

• 77

• 87

• 88

• 78

Which of these is set up correctly for "What is 6% of 90"?

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Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Which of these is set up correctly for "Find 40% of the number 85"?

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Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3