pre-a chaps 6 & 7 final

proportions

100

15/x = 5/4

x = 12

200

28/24 = x/12

x = 14

300

4/32 = 3/x

x = 24

400

9/x = 3/185

x = 555

500

4/9 = 9/x

x = 20.25

percent/fraction

100

16%

4/25

200

2/8

25%

300

0.6%

3/500

400

12/8

150%

500

0.45%

9/2000

percent/decimal

100

43%

0.43

200

0.37

37%

300

7.2%

0.072

400

2.4

240%

500

115%

1.15

percent proportion

100

36 is 24% of what number?

150

200

12 is what % of 60?

20%

300

28 is 80% of what number?

35

400

what is 63% of 130?

81.9

500

what is 1% of 167?

1.67