Percents
Ratios/Proportions
Ratios/Proportions
Percents in Real Life
Percent Error/Difference
Percent Equations
100

What is 20 % of 500?

100

100

10/100= x/22 What is the value of x? 

2.2

100

2/10= x/ 5

1
100

John is selling sets of knives and makes a 10% commission on all sales.   What would his commission be on the sale of a $3250 set of knives?

$325

100

Bob got a raise, and his hourly wage increased from $12 to $15. What is the percent increase?  

25%

100

If you have a house increase 4% each year, write an equation to show the new price. Use x to represent old price and y to represent new price.

y=1.04x

200

What is 60 % of 1000?

600

200

10/12= 50/x What is the value of x?

60

200

33/100  =  x/90

29.7

200

A salesperson made $890.50 selling $6850 worth of electronic equipment.  Find the commission rate.

13%

200

6 cm are cut from a 24 cm board. What is the percent decrease in length?

25%

300

A baseball pitcher won 80% of the games he pitched. If he pitched 35 ballgames, how many games did he win?

28

300

100/ x= 50/1000

2000

300

A grocery store sells oranges at five for $ 5.25. How much is each orange?

1.05

300

The jacket cost 30.00. There is a 25 % discount. How much is the jacket?

$22.50

300

The price of gasoline rose from $2.40 to $2.76 in one month. By what percent did the gas price rise? _____

15%

300

You have a coupon of 35% off an item at a store. Write an equation to show the new price of the item. Use x to represent original price and y to represent the new price.

y=0.65x

400

Ben earns $12,800 a year. About 15% is taken out for taxes. How much is taken out for taxes?

$1,920

400

There are 143 chips in a 13- ounce bag of potato chips.What is the number of potato chips per ounce?

11

400

A grocery store sells 50 cookies for 8 dollars. How much would it be for 20 cookies?

$3.20

400

A real estate agent earned a commission of $6875 for selling a house.  If his rate is 2.5%, find the selling price of the house.

$275,000

400

If a t-shirt went on sale for $20 after a 30% discount, what was the original price of the shirt?

$28.57

500

A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly?

16

500

There are 143 chips in a 13- ounce bag of potato chips. How many ounces does each chip weigh?

0.09 oz

500

A grocery store sells apples at five for $ 3.50. How much would 6 apples be at this rate?

$4.20

500

Jenny borrowed $200 at 6% interest for 2 years. How much in total did Jenny have to pay back?

$224

500

After tax (7%) and tip (20%), the restaurant bill came to be $54.33. How much was the bill before tax and tip?

$42.78

500

You pay 7% tax and 20% tip at a restaurant. Write an equation to represent your total. Use x to represent the bill before tax and tip and y to represent total after tax and tip.

y=1.27x

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