Name:______Per______
Review Part 2 Worksheet
1. Convert Decimal to Percent:
a. 0.467 46.7%
b. 0.82 82%
2. Convert Percent to Decimal:
a. 29.5% .295
b. 81% .81
c. 3% .03
d. 90% .90
3. Convert Fraction to Decimal (don’t round):
a. 2340 .575
b. 58 .625
4. Convert Fraction to Percent – two steps (don’t round):
a. 750 .14 = 14%
b. 78 .875 = 87.5%
Tips:
A restaurant bill is $84.97, find a
5. 15% tip $84.97 X .15 = $12.75
6. 20% tip $84.97 X .20 = $16.99
Tax:
You go grocery shopping and you spend $124.68
7. Find the tax on your purchase if the sales tax is 6.85%
$124.68 X .0685 = $8.54
8. How much is your total after the tax?
$124.68 + $8.54 = $133.22
Interest Rate I = P x R x T:
9. Find the interest earned if P = 8000 R = 7% and T = 1 year
8000 X .07 X 1= $560 interest
10. Bill invests $450 dollars into a savings account that earns 3.2% every year. How much will he have earned if he leaves it in the account for 5 years?
$450 X .032 X 5 = $72 in interest
11. Nancy’s credit card has $1850 on it. Her bank penalizes her 9.8% each year she has that balance. If she leaves her credit card like that for 2 years how much will she have on her credit card?
$1850 X .098 X 2 = $362.60, $1850 + $362.60 = $2212.60 she now owes on her credit card.
Set up that proportion and solve!:
12. One serving of pasta contains 210 calories. What percent of a 2000-calorie diet is contained in one serving of pasta
2102000=X100 10.5% of a 2000 calorie diet
13. The $299.99 cell phone Brittany purchased was on sale for 10% off. What amount did Brittany get off the price?
x299.99=10100 $29.99 off the original price
A laptop computer is normally $1299 but it discounted to $999. What percent of the original price does Charles pay?
9991299=X100 76.9% of original price
14. Jacob paid $120 for a portable e-book reader that was 80% of the original price. What was the original price?
120X=80100 $150 was the original price
Opposite questions:
15. Kim got 3 problems wrong on a test of 25 questions. What percent of the questions did she get correct?
25-3 means kim got 2225=x100 88 % correct
16. Joey went golfing and out of 15 holes he shot 80% of them on par. How many holes were not on par? (If you are wondering what par means, it is the pre-determined number of strokes a golfer should take to complete the hole….haha maybe you are even more confused…or you already knew that! But you don’t need to know that information to complete this problem, just a bit of side information. Now get solving!)
100% - 80% = 20% not on par x15=20100 3 holes were not on par
Box problems + write that sentence!:
17. If you ate a 315-calorie meal, and 95 calories are from fat, about what percent of the meal is fat?
Use a Proportion / AnswerFat 95 cal. /
95315=x100 / 95 X 100315=X x= 30.16%
Sentence: 30.2 % of the calories in a 315 calorie meal came from fat, if you ate 95 calories (from fat).
18. You want to leave a tip for a meal that costs $17.95. If all you leave is $3.00, what percent of a tip did you leave?
Use a Proportion / AnswerTip $3 /
317.95=x100 /
3 X 100 17.95= X X= 16.71 %
Sentence: If we leave a $3 tip on a bill of $17.95, we are leaving a 16.7 % tip
19. If the 481 children’s books represent 13% of the books in the library, how many total books are in the library?
Use a Proportion / AnswerBooks 481 – children’s books /
481X=13100 /
481 X 10013=X X = 3700
Sentence: Our library contains 3700 books, 13% of those are Children’s books.