1. PERCENTS & EQUATIONS II
Solving “real world” problems

2. A realtor earns 7% of the selling price for each house that they sell.
Commission
The amount of money a sales person receives based on the amount of sales.
A realtor earns 7% of the selling price for each house that they sell.
A car salesman earns 8% of the selling price for each car that they sell.

3. Commission Problems
A realtor makes 7% commission on the sale of a house that sells for $150,000. To the nearest dollar, how much was the commission for this sale.
Commission is 7% of the price
Word-for-word translation: c = 0.07(150,000)
c = $10,500

4. EXAMPLE 1
A pharmaceutical sales representative earns 4.5% commission for sales made. How much commission is earned on a sale of $3000? (nearest dollar)
0.045(3000) = c
c = $135

5. EXAMPLE 2
A salesman earns $350 on a sale of $10,000. What was the percent commission that was earned?
350 = 10,000(c)
350/10,000 = c
0.035 = c
As a percent, 3.5%

6. SURVEY QUESTIONS
35% of the 500 people surveyed thought that taxing soda to fight obesity was a good idea. How many people was this?
0.35(500) = P
P = 175

7. EXAMPLE 1
1,067 people answered yes to the question, “Do you feel good about your life overall?” If this is 93% of the total number surveyed, how many people were surveyed?
0.93(P) = 1067
P = 1067/ 0.93
P = or 1147 people

8. EXAMPLE 2
During a telephone survey, 414 people, or 46% of those called, said that they were watching station RFGT at the time of the call. How many people were called?
0.46(x) = 414
x = 414/ 0.46
x = 900

9. COMBINING WITH PROPORTIONS
Write and solve a proportion. What is 72% of 16? (nearest tenth)
How do you know what things go where?
Use the wording to set up the proportion

10. Write and solve a proportion. What is 72% of 16? (nearest tenth)
Since this says the 72% is multiplied by 16, they must be in opposite locations.

11. Write and solve a proportion. What is 72% of 16? (nearest tenth)
16 must be in the denominator to be multiplied by the 16

12. NEXT QUIZ: WEDNESDAY, MARCH 17TH
ASSIGNMENT
6.7B: 17 – 20, 30, 40 – 43
NEXT QUIZ: WEDNESDAY, MARCH 17TH