Simple Interest
Percent Inc/Dec
Markups, Discounts & Commissions
Part, Percent, Whole
Frac-Dec-Per Conversions
These are ratios
100
$70.00 at 5% for 2 years. How much interest is earned?
$7
100
Greg scored 84 points in Tuesday's game. Today he scored 63 points. What is Greg's percent change?
Did Greg show an Increase or Decrease?
25%
Decrease
100
A poster costs $10.90. If the sales tax rate is 5%. How much is the sales tax in dollars?
Sales Tax = 0.55
100
35 is 70% of what number?
50
100
Rewrite 541% as a decimal
5.41
100
Write the following ratio using two other notations.
4:1
4/1
and 4 to 1
200
$227.00 at 16% for 4 years. What is the final balance after 4 years?
Interest: $145.28
Final balance: $372.28
200
The price of an item has risen to $392 today. Yesterday it was $160. Find the percent change.
392-160=232
232 / 160 = 1.45
1.45 x 100 = 145%
200
A video game is regularly priced at $44. It is on sale for 80% off the regular price. What is the sale price?
Discount = $35.20
Sales Price = 44 - 35.20 = $8.80
200
18 is what percent of 90?
20%
200
Write 0.007 as a percent
0.7% or .7%
200
Mike runs 8 miles in 20 minutes. How many minutes per mile does he run?
2.5
300
$945.00 at 7% for 5 years. What is the final balance after 5 years?
Interest: $330.75
Final Balance: $1275.75
300
1,200 cookies were sold last year at the bake sale. This year 1,140 cookies were sold. What is the percent change between last year and this year?
5%
300
A salesperson sells $3700 in jewelry and earns 19% in commissions. How much money do they earn in commissions?
$703
300
What is 29% of 103?
29.87
300
Write 55% as a fraction in simplest form
11/20
300
Lexi made $168 for 12 hours of work. At the same rate, how many hours would she have to work to make $112?
8 hours
400
$38.00 at 6% for 6 years. What is the final balance after 6 years?
Interest: $13.68
Final Balance: $51.68
400
This year the Denver Broncos won 7 games. Last year, they won 5 games. What is their percent change?
40%
400
A jacket costs $75.25. If the sales tax rate is 8.5% what is the final price after sales tax?
$81.65
400
What percent of 82 is 6?
7.3%
400
Rewrite 0.88 as a simplified fraction and as a percent (You must do both)
22/25
88%
You must get both correct to earn points
400
Is this proportional? If so, what is k?
No!!! When you divide y by x, you get different numbers.
500
A savings account earns $4.60 of interest when they deposit $92.00 for 1/2 of a year. What is the rate received on this account?
10%
500
Shirley spent $270.00 on school clothes last summer. This summer she spends $450.00. What is Shirley's percent change? Round your answer to the nearest tenth.
66.7%
500
A used car normally costs $4,000.00. The dealership hasn't been able to sell it so they mark it down 7.5%. How much are you saving, and what is the final price of the car after the markdown?
Saving = $300
Price after markdown: $3700.00
500
What number is 1.9% of 2
0.038
500
Write 5.8 as a percentage
580%
500
Which graph is proportional? And what is k?
Graph 2. And k=5, because y/x=k, so 5/1=5.