Percent of a Number Proportions

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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What is 20% of 75?

• 15

• 60

• 6

• 1.5

What is 30% of 80?

• 30

• 24

• 2.4

• 56

What is 125% of 84 ?

• 105

• 188.5

• 473.4

• 356.7

What is 90% of 250?

• 245

• 225

• 255

• 244.33

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

There are 35 boys out for football. This is about 5% of the total enrollment. How many total kids are in the school?

• 30

• 350

• 700

• 1235

Taylor works at a clothing store. Her weekly salary is $900. In addition to her salary, she earns 28% of the amount of her sales each week. What is the total amount Taylor should earn if she sells $1225 worth of clothing in one week?

• $1243

• $343

• $1225

• $945

The number of students at Marita's school decreased to 98% of last year's number. Currently, there are 1,170 students. How many students were there last year? Round to the nearest whole number.

• 1,198

• 1,196

• 1,194

• 1,192

There are 126 students in theater at a school. On a certain day, 94 of the students in choir went on a field trip. What percent of student stayed at school instead of going on the field trip? Round to the nearest whole percent.

• 22%

• 25%

• 27%

• 29%