Percent Application
** + 100 **
1. Harper went shopping and got a sweater for 30% off. If it originally cost $60, how much did Harper save?
$18
** + 200 **
5. The doctor recommended that Matt increase the number of calories he consumed from 2,000 to 2,800. By what percent did the number of calories increase?
** + 100 **
9. A hospital bill is estimated to be $480. It ends up actually costing the patient $524.50. What is the percent error in the bill?
8.5% or 8%
** - 100 **
13. Michael deposits $600 into his savings account. If his account has a 5% simple interest rate for 8 years, how much interest did he earn?
$240
** +/- 200 **
How many pets does Mrs. Pinkney have?
Extra 50 points for type(s)/name(s)
1 cat - Mocha
** + 200 **
2. What percent sales tax are you paying if for a $56 item, you have to pay $2.24 in tax?
4%
** + 300 **
6. In August Anderson Middle School had 480 students. At the end of the year, it had 504 students. What is the percent change in the enrollment?
5% increase
** - 200 **
10. Marco thought that he could run a 5K race in 28 minutes. His actual time was 26 minutes. What is the percent error in his estimate?
7.7% or 8%
** + 200 **
14. Jamie borrows $2,000 to purchase a new living room furniture set. She will pay a 8% interest rate over 18 months. How much will Jamie pay in interest?
$240
** +/- 300 **
How many children does Mrs. Pinkney have?
(Extra 100 points for names(s))
1 - Railey
** -300 **
3. How much would you have to pay for a check at a restaurant if your bill was $35.50 and you want to leave a 18% tip?
$41.89
** - 300 **
7. A laptop cost $300 in 2010 and $150 in 2015. What is the percent change in price?
50% decrease
** + 400 **
11. Looking in a fishtank, Marissa guessed that there were 356 fish. In actuality, there were 376. What is Marissa’s percent error?
5.3% or 5%
** + 300 **
15. Amanda invests $5,000 in a CD at an annual interest rate of 2%. What will her investment be worth at the end of three years?
$5300
** +/- 400 **
What was Mrs. Pinkney's last name before she got married (2 years ago next week)?
Phillips
** Triple your points **
4. Samantha bought a TV for 40% off and paid $900 for it. What was the original price of the TV?
$1500
** Double your points **
8. Enrollment in a book club increased by 15% this year. Last year there were 20 members. How many members are there this year?
23 members
** + 500 **
12. There were 60 marbles in a jar. Jason guessed that there were 50 and Erica guessed that there were 68. Find both of their percent errors and explain who was closest and how you knew.
Jason: 17% error
Erica: 13% error
Erica is closest because her % error is smaller
** Lost 1/2 of your points **
16. Allie had to pay $3,600 in interest on a car that she bought with a 4% interest rate and took 6 years to pay off. What was the price of the car?
$15,000
** +/- 500 **
In what month was Mrs. Pinkney born?