6.7 notes

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6.7 percents and equations

HW pg.322 !1­17 odds 1

January 17, 2012

Objective: writing and solving percent equations

BellworkWrite each percent as a decimal.1. 48%

2. 23.8%

3. 178.5%

Write each decimal as a percent.

4) 0.46

5) 2.47

Page 2: 6.7 notes

6.7 percents and equations

HW pg.322 !1­17 odds 2

January 17, 2012

To solve problems with percents we can use proportions.

  % is100 of

=

What is 85% of 62?

Page 3: 6.7 notes

6.7 percents and equations

HW pg.322 !1­17 odds 3

January 17, 2012

Page 4: 6.7 notes

6.7 percents and equations

HW pg.322 !1­17 odds 4

January 17, 2012

What percent of 48 is 54?

0.96 is what percent of 10?  

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6.7 percents and equations

HW pg.322 !1­17 odds 5

January 17, 2012

19.2 is 32% of what?

A real­estate agent makes 4.5% commission on property she sells.  How much commission does she make on the sale of a house for $132,500?

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6.7 percents and equations

HW pg.322 !1­17 odds 6

January 17, 2012

In a survey, 922 people or about 68.6%, preferred smooth peanut butterto chunky.  How many people were surveyed?

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6.7 percents and equations

HW pg.322 !1­17 odds 7

January 17, 2012

HW pg. 322 #1­17 odds