1. Algebra 1September 14 & 17, 2012

2.  “a is p percent of b” part  base  (whole)  per – cent

3.  What percent of 50 is 33? p = 66  66%

4.  35% of what number is 28? b = 80

5.  What number is 40% of 90? a = 36

6.  “a is p percent of b” partpercent (written as a decimal) base

7.  What percent of 224 is 98? p = 0.4375  43.75%

8.  What number is 75% of 164? a = 123

9.  21 is 37.5% of what number? b = 56

10. The circle graph shows the results of a survey in which 500 people in an office building were asked how they get to work. a.Estimate how many people use public transportation to get to work. b.Estimate how many people do not use a private automobile to get to work. 40 people 60 people