Chapter 10 Percents

Fractions to Percents

100

3/5

60%

200

7/20

35%

300

19/25

96%

400

100/500

20%

500

128/400

32%

Percents to Fractions

100

12%

3/25

200

78%

39/50

300

65%

13/20

400

40%

2/5

500

2%

1/50

Find a Percent of a Number

100

What is 50% of 104

52

200

What is 40% of 85?

34

300

What is 15% of 20?

3

400

What is 48% of 50?

24

500

What is 45% of 720

324

Real World Percent Problems

100

Shawn painted 13/25 of a wall. What percent was painted? What percent of the wall was not painted?

Painted- 52%

Not Painted- 48%

200

There are 900 students in a school. 540 of them are boys. What percent of the students at the school are boys?

60% are boys

300

A can of tomatoes had a mass of 560 grams. Sylvia used 70% of the can to make soup. How many grams of tomatoes did she use in her soup?

392 grams of tomatoes

400

450 children attended a school play. Of the total attendance, 40% were boys. How many girls attended the school play?

270 girls

500

Raymond had $900. He spent 20% of his money on a wireless phone, 45% on a television set, and the rest on a camera.

What percent of his money was spent on a camera? How much money was spent on the camera?

35% of money spent on camera.

$315 spent on camera