Percent Proportion
20.25 is 112.5% of what number?
18
1.45 is what percent of 116?
1.25%
In two years, the value of a car changed from $14,000 to $11,200. What is the percent of change?
20 percent decrease
-20%
Evan buys a suit marked $64.99. He receives a 20% discount. Write an equation that can be used to determine the sales price of the suit.
s = 64.99(0.80)
Graham plans to borrow $850 at 4% over 4 years, What amount of simple interest should he expect to pay?
$136
Of 120 owners of reptiles surveyed, 27 own snakes as pets. What percent of the reptile owners do not own snakes as pets?
77.5%
Fifty-two of 80 marbles are red. What percent of the marbles are not red?
35%
Dominic estimates that the length of a ribbon is 75 centimeters. It is actually 66 centimeters long. What is the percent of error of his estimate?
the percent error is 13.6%
Erin bought a $205 smart phone, but her total was $217.30. What percent sales tax did she pay?
6%
Kayla deposited $750 in the bank for 3 years. She earned $135 in simple interest at the end of 3 years. What was the annual interest rate?
6%
Out of 20 goals, Jethro made 45% of his attempts. How many goals did he miss?
11
142.5% of 20 is what number?
28.5
According to the United States Census Bureau, the state of Texas had a population of 20,851,820 in 2000. Census data shows that in 2010, the population of Texas was 25,145,561. Find the percent of change
20.6% increase
A store makes a profit of $15 on a wallet after a markup of 60%. What is the selling price of the wallet?
$40
Taylor has a car loan of $8500. Over the course of the loan, she paid a total of $5525 in interest at a rate of 13%. How many months was the car loan?
60 months
If 70 is 25% of a number, what is 500% of the number?
1400
If 80% of a number is 57.6, what is 15% of the number?
10.8
Mr. Morrison estimates that the length of his classroom is 30 feet. The actual length is 32.5 feet. Find the percent of error. Round to the nearest whole percent.
percent of error is about 8%
A used desktop computer sells for $430, which is a 75% reduction from the original price. What was the original price of the computer?
$1,720
What is the total amount of money in an account where $350 is invested at an interest rate of 7.25% compounded annually for 2 years?
$402.60
A study reported that 15% of toddlers have food allergies. If 14,500 parents of toddlers were polled, how many parents made this claim?
2,175 parents
The human body is made up of about 9.3% of hydrogen. What is the amount of hydrogen contained in a person who weighs 175 pounds?
16.275 pounds
A bicycle originally priced at $225 was marked down 30%. After a week, the bicycle was marked down another 15% off he sale price. What is the percent of change from the original price to the final sale price?
-40.5%
40.5% decrease
Jackson is buying a gold chain that had an original price of $795 but is advertised as 65% off. Sales tax of 8.50% is applied to the discounted price. How much will Jackson pay for the chain?
$301.90
An investment of $2000 is compounded annually at 5%. What is the total amount of money after 3 years?
$2,315.25