3D Discount
Find the sale price to the nearest cent.
$210 bicycle; 25% discount
Method 1: Subtract the discount from the regular price.
Find the discount.
Subtract the discount from the regular price.
Method 2: Subtract the percent of discount from 100%.
100% 25% = 75%
The sale price is 75% of the regular price.
The sale price of the bicycle is $157.50.
$157.50
$40 sweater; 33% discount
Method 1: Subtract the discount from the regular price.
Find the discount.
Subtract the discount from the regular price.
Method 2: Subtract the percent of discount from 100%.
100% 33% = 67%
The sale price is 67% of the regular price.
The sale price of the sweater is $26.80.
$26.80
$1,575 computer; 15% discount; 4.25% tax
Find the discount.
Subtract the discount from the regular price.
The sale price of the computer is $1,338.75.
Find the sales tax.
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Add the sales tax to the regular price.
Page 1
The sale price of the sweater is $26.80.
3D Discount
$26.80
$1,575 computer; 15% discount; 4.25% tax
Find the discount.
Subtract the discount from the regular price.
The sale price of the computer is $1,338.75.
Find the sales tax.
Add the sales tax to the regular price.
So, the sale price including tax is $1,395.65.
$1,395.65
$119.50 skateboard; 20% off; 7% tax
Find the discount.
Subtract the discount from the regular price.
The sale price of the skateboard is $95.60.
Find the sales tax.
Add the sales tax to the regular price.
So, the sale price including tax is $102.29.
$102.29
IN-LINE SKATES A pair of in-line skates is on sale for $90. If this price represents a 9% discount from the
original price, what is the original price to the nearest cent?
The sale price is 100%
9% or 91% of the original price. Let p represent the original price.
So, the original price is $98.90.
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$98.90
Find the sale price to the nearest cent.
Page 2
So, the sale price including tax is $102.29.
3D Discount
$102.29
IN-LINE SKATES A pair of in-line skates is on sale for $90. If this price represents a 9% discount from the
original price, what is the original price to the nearest cent?
The sale price is 100%
9% or 91% of the original price. Let p represent the original price.
So, the original price is $98.90.
$98.90
Find the sale price to the nearest cent.
$64 jacket; 20% discount
Method 1: Subtract the discount from the regular price.
Find the discount.
Subtract the discount from the regular price.
Method 2: Subtract the percent of discount from 100%.
100% 20% = 80%
The sale price is 80% of the regular price.
The sale price of the jacket is $51.20.
$51.20
$1,200 TV; 10% discount
Method 1: Subtract the discount from the regular price.
Find the discount.
Subtract the discount from the regular price.
Method 2: Subtract the percent of discount from 100%.
100% 10% = 90%
The sale price is 90% of the regular price.
The sale price of the TV is $1,080.
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$1,080.00
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The sale price of the jacket is $51.20.
3D Discount
$51.20
$1,200 TV; 10% discount
Method 1: Subtract the discount from the regular price.
Find the discount.
Subtract the discount from the regular price.
Method 2: Subtract the percent of discount from 100%.
100% 10% = 90%
The sale price is 90% of the regular price.
The sale price of the TV is $1,080.
$1,080.00
$199 MP3 player; 15% discount
Method 1: Subtract the discount from the regular price.
Find the discount.
Subtract the discount from the regular price.
Method 2: Subtract the percent of discount from 100%.
100% 15% = 85%
The sale price is 85% of the regular price.
The sale price of the MP3 player is $169.15.
$169.15
$12.25 pen set; 60% discount
Method 1: Subtract the discount from the regular price.
Find the discount.
Subtract the discount from the regular price.
Method 2: Subtract the percent of discount from 100%.
100% 60% = 40%
The sale price is 40% of the regular price.
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The sale price of the pen set is $4.90.
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The sale price of the MP3 player is $169.15.
3D Discount
$169.15
$12.25 pen set; 60% discount
Method 1: Subtract the discount from the regular price.
Find the discount.
Subtract the discount from the regular price.
Method 2: Subtract the percent of discount from 100%.
100% 60% = 40%
The sale price is 40% of the regular price.
The sale price of the pen set is $4.90.
$4.90
$4.30 makeup; 40% discount; 6% tax
Find the discount.
Subtract the discount from the regular price.
The sale price of the makeup is $2.58.
Find the sales tax.
Add the sales tax to the sale price.
So, the sale price including tax is $2.73.
$2.73
$7.50 admission; 20% off; 5.75% tax
Find the discount.
Subtract the discount from the regular price.
The sale price of the admission is $6.
Find the sales tax.
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the sales
tax tobythe
sale price.
So, the admission price including tax is $6.35.
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So, the sale price including tax is $2.73.
3D Discount
$2.73
$7.50 admission; 20% off; 5.75% tax
Find the discount.
Subtract the discount from the regular price.
The sale price of the admission is $6.
Find the sales tax.
Add the sales tax to the sale price.
So, the admission price including tax is $6.35.
$6.35
$39.60 sweater; 33% discount; 4.5% tax
Find the discount.
Subtract the discount from the regular price.
The sale price of the makeup is $26.53.
Find the sales tax.
Add the sales tax to the sale price.
So, the sale price including tax is $27.72.
$27.72
$90.00 skateboard;
Find the discount.
Subtract the discount from the regular price.
The sale price of the skateboard is $60.
Find the sales tax.
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Add the sales tax to the sale price.
Page 6
So, the sale price including tax is $27.72.
3D Discount
$27.72
$90.00 skateboard;
Find the discount.
Subtract the discount from the regular price.
The sale price of the skateboard is $60.
Find the sales tax.
Add the sales tax to the sale price.
So, the sale price including tax is $64.80.
$64.80
COSMETICS A bottle of hand lotion is on sale for $2.25. If this price represents a 50% discount from the original
price, what is the original price to the nearest cent?
The sale price is 100%
50% or 50% of the original price. Let p represent the original price.
So, the original price was $4.50.
$4.50
TICKETS At a movie theater, the cost of admission to a matinee is $5.25. If this price represents a 30% discount
from the evening price, find the evening price to the nearest cent.
The sale price is 100%
30% or 70% of the original price. Let p represent the original price.
So, the original price was $7.50.
$7.50
RESTAURANTS Mitchell spent $13 on dinner. He wants to tip the server 15%. About how much money should
he leave as the tip?
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Find the amount of the tip.
15% of $13.
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So, the original price was $7.50.
3D Discount
$7.50
RESTAURANTS Mitchell spent $13 on dinner. He wants to tip the server 15%. About how much money should
he leave as the tip?
Find the amount of the tip.
15% of $13.
Mitchell should leave $1.95, or about $2 as a tip.
about $2
Find the percent of change. Round to the nearest whole percent if necessary. State whether the percent
of change is an increase or decrease.
35 birds to 45 birds
Find the amount of change.
45 35 = 10
Find the percent of change.
The percent of change is 29%. Since the percent is positive, this is a percent of increase.
29%, increase
60 inches to 38 inches
Find the amount of change.
38 60 = 22
Find the percent of change.
The percent of change is 37%. Since the percent is negative, this is a percent of decrease.
37%, decrease
$2.75 to $1.80
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Find the amount of change.
Page 8
The percent of change is 37%. Since the percent is negative, this is a percent of decrease.
3D Discount
37%, decrease
$2.75 to $1.80
Find the amount of change.
$1.80 $2.75 = $0.95
Find the percent of change.
The percent of change is 35%. Since the percent is negative, this is a percent of decrease.
35%; decrease
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