[percent problems][section 13]

(1.) What percent of 92 is 69?

92x = 69 here is the problem
____ ____
92 92 divide each side by 92

x = 0.75 divide and cancel

x = 75 % write as a percent

result: 75 %

(2.) 21 is 30 % of what number?

.30x = 21 here is the problem
____ ____
.30 .30 divide each side by .30

x = 70 divide and cancel

result: x = 70

(3.) 3 % of 400 is what number?

x = .03(400) here is the problem

x = 12 multiply

result: x = 12

(4.) What percent of 35 is 28?

35x = 28 here is the problem
____ ____
35 35 divide each side by 35

x = .80 divide and cancel

x = 80 % write as a percent

result: 80 %

(5.) The price of a new car is $6500. Mrs. Brown made

a down payment of 15 % of the price of the car when

she bought it. How much was the down payment?

x = .15(6500) here is the problem

x = $975 multiply

result: $975

(6.) A soccer team won 8 games. This was 40 % of the games

played. How many games did the team play?

.40x = 8 here is the problem
____ ____
.40 .40 divide each side by .40

x = 20 divide and cancel

result: x = 20

(7.) How much silver is in 12.5 kg of an alloy which is

8 % silver?

x = .08(12.5) here is the problem

x = 1 multiply

result: x = 1

(8.) The discount of a set of golf clubs is $69 and the rate

of discount is 15 %. What is the list price?

.15x = 69 here is the problem
_____ ___
.15 .15 divide each side by .15

x = 460 divide and cancel

result: $460

(9.) A sports car that originally cost $6000 is now valued

at $8000. What is the percent increase in value?

6000x = 2000 here is the problem
_____ _____
6000 6000 divide each side by 6000

x = .3333 divide and round and cancel

x = 33.33 % write as a percent

result: 33.33 %

(10.) Sam bought a coat at a "20 % off" sale and saved $35.

What was the original price of the coat?

.20x = 35 here is the problem
_____ ___
.20 .20 divide each side by .20

x = 175 divide and cancel

result: $175