Of the 50 books on a bookshelf, 10 are nonfiction. What percent of the books are nonfiction?
20%
100
What is 0.75 as a percent?
75%
100
We bought a $1,200 TV. We had a coupon for 20% discount. What amount was discounted?
$240
100
Explain what p, r and t represent.
p = principal, original amount of money
r = rate, percent in decimal form, what your money earns/pays
t = time, in years, how long it's borrowed/earning
200
What is 25% of 60?
15
200
Eileen and Michelle scored 48% of their team's points. If the team scored 50 points, how many did the girls score?
24 points
200
What fraction does the decimal 0.33333... represent?
1/3
200
Our meal was $7.50. Sales tax is 6%. How much did we spend in tax?
$0.45
200
$640
3%
2 years
How much interest does that equal?
$38.40
300
18 is what percent of 60?
30%
300
Roman has 2 red pencils in his backpack. If this is 25% of the total number of pencils, how many total are in his backpack?
8 pencils
300
What is the simple interest formula?
I = prt
300
Our pizza order was $39. I gave the delivery driver a 15% tip. How much did I pay for a tip?
$5.85
300
$1,000
7%
18 months
How much interest does that equal?
$105
400
70% of what number is 14?
20
400
A local bakery sold 80 loaves of bread in one day. If 45% of these were sold in the afternoon, how many were sold in the afternoon?
36 loaves
400
Last night at dinner, my family's total bill came to a total of $50. The waiter was amazing! Our chip basket was always full and we always had a fresh drink. I left $4 for a tip. Was this tip sufficient or not? Explain.
No. Considering the great service, a tip of $4 is not sufficient. That tip isn't even 10% of the total bill. A typical tip is around 15%; more for great service.
400
Jamar is finding the selling price of a pair of $40 shoes after a 30% discount. Find his mistake.
30% of $40 = $12
$40 + $12 = $52
The total is $52.
Jamar added the discount to the original price instead of subtracting it. The total should be $28.
400
$290
12.5%
6 months
How much interest does that equal?
$18.13
500
What percent of 30 is 54?
180%
500
A store sold 550 video games in December. If this make up 12.5% of the yearly game sales, how many did they sell all year?
4,400 games
500
A haircut costs $20. Sales tax is 4.75%. Is $25 sufficient to cover the haircut with tax and a 15% tip?
Yes. The total cost would be $23.95 and that is less that $25.
500
Diana and Heather clean homes for a summer job. They charge $70 for the job, plus 5% for supplies. A homeowner gave them a 15% tip. Did they receive more than $82 for their job? Explain.
Yes. They received $84 in total. If they got 5% for supplies and 15% tip, that is a total of 20% extra. 20% of $70 is $14. This would give them a total of $84.
500
Samantha got a loan from the bank for $4,500. She plans on paying the loan in 4 years. At the end of the 4 years, Samantha will have paid $900 in interest. What is the rate on the loan? (Think backwards.)