NAME ____________________________________________ DATE ____________________________ PERIOD ____________
Lesson 7 Homework Practice
Discount – Finding the Original Price
Find the original price to the nearest cent.
Example: A cell phone is on sale for 30% off. If the sale price is $239.89, what is the original
price?
The sale price is 100% - 30%, which is 70% of the original price. Let p equal the original price
(whole). Use the equation part = percent x whole
239.89 = 0.7 x p
239.89 = 0.7 x p Divide both sides by 0.7
0.7
0.7
342.70 = p, therefore the original price was $342.70
1. RADIO A radio is on sale for $50. If this price represents a 10% discount from the original
price, what is the original price to the nearest nickel?
2. LAUNDRY DETERGENT A box of laundry detergent is on sale for $6.50. If this price
represents a 40% discount from the original price, what is the original price to the nearest cent?
3. ALARM CLOCK Dominic bought a new alarm clock that was on sale for $18.75. If this price
represents a 30% discount from the original price, what is the original price to the nearest cent?
4. COSMETICS Jaylynn was buying new mascara. She bought it on sale for $5.56. If the price
represents a 20% discount from the original price, what is the original price to the nearest cent?
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NAME ____________________________________________ DATE ____________________________ PERIOD ____________
Find the sale price to the nearest cent.
1. $89.00 DVD player; 15% discount, 9% tax
2. $75 dress shirt; 20% discount, 8.25% tax
3. $14 socks; 15% discount, 8.75% tax
4. $12.50 toy; 30% discount, 9% tax
5. $140 coat; 10% discount, 8% tax
6. $65 dress pants; 20% discount, 9% tax
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