The Percent Proportion

Section 5-3

The Percent Proportion

part

whole=

%100

Identify the Part, the Whole, and the Percent

22 is what percent of 110?

Part = 22

Whole = 110

% = ?

22

110=

x100

x =20%

Identify the Part, the Whole, and the Percent

70 is what percent of 280?

Part = 70

Whole = 280

% = ?

70

280=

x100

x =25%

Identify the Part, the Whole, and the Percent

What number is 80% of 500?

Part = ?

Whole = 500

% = 80

x

500=

80100

x =400

Identify the Part, the Whole, and the Percent

150 is 60% of what number?

Part = 150

Whole = ?

% = 60

150

x=

60100

x =250

Identify the Part, the Whole, and the Percent

125 is 30% of what number?

Part = 125

Whole = ?

% = 30

125

x=

30100

x =416.7

Identify the Part, the Whole, and the Percent

What percent of 49 is 7?

Part = 7

Whole = 49

% = ?

7

49=

x100

x =54%

Use what you have learned to solve these problems…..

Buying a Television

A television costs $350. If a 7% sales tax is added, how much tax is added?

Part = ?

Whole = 350

% = 7

x

350=

7100

x =24.50What is the total cost of the TV?$374.50

Selling a House

A real estate agent earns a 3% commission on each house she sells. If she sells a $150,000 house, how much commission will she get?

Part = ?

Whole = 150,000

% = 3

x

150,000=

3100

x =4,500

Basketball

In the ‘01-’02 NBA season, Shaq made 57.74% of his field-goal attempts. If he made a total of 653 field goals, how many total attempts did he take?

Part = 653

Whole = ?

% = 57.74

653

x=

57.74100

x =1,131

Football

A quarterback completed 19 out of 30 attempts to pass the football. What was his percent of completion?

Part = 19

Whole = 30

% = ?

19

30=

x100

x =63.3%