AnswersCommon Core Math 7 - MA3107 CRFinding an Original Amount

Finding an Original Amount Answers

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1
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Which scenario is modeled by the equation ?

Question illustration
A
A pair of boots is on sale for 65 percent of the original cost. The sale price of the boots is x, $56.12.
B
A pair of boots is on sale for 35 percent of the original cost. The sale price of the boots is x, $56.12.
C
A pair of boots is on sale for 65 percent of the original cost. The original price of the boots is x, $56.12
D
A pair of boots is on sale for 35 percent of the original cost. The original price of the boots is x, $56.12.
2
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Which scenario is modeled by the equation ?

Question illustration
A
A picnic table is on sale for 60 percent off. The sale price of the picnic table is x, $144.10.
B
A picnic table is on sale for 40 percent off. The sale price of the picnic table is x, $144.10
C
A picnic table is on sale for 60 percent off. The original price of the picnic table is x, $144.10.
D
A picnic table is on sale for 40 percent off. The original price of the picnic table is x, $144.10
3

Which scenario is modeled in the diagram below?PercentsTotal75%25%100%25%25%25%25% $55.15$55.15$55.15$55.15

A
Kaia saved $55.15 on a new guitar because it was 75 percent off. She paid $220.60 for the guitar.
B
Kaia saved $165.45 on a new guitar because it was 75 percent off. She paid $220.60 for the guitar.
C
Kaia saved $55.15 on a new guitar because it was 75 percent off. The price of the guitar before the discount was $220.60.
D
Kaia saved $165.45 on a new guitar because it was 75 percent off. The price of the guitar before the discount was $220.60.
4

Iliana signed up for a store credit card with no annual fee to get a discount of 12.5 percent off her entire first purchase.PercentsTotal 100% If she saved $7.29 on her first purchase by using this credit card, what was the total price of the items before the discount?

A
$0.91
B
$1.71
C
$58.32
D
$91.13
5

A pizza restaurant sells containers of juice that it marks up 75 percent above its wholesale cost. If the restaurant marks up each container by $0.90, how much does the restaurant pay for each container of juice wholesale?

A
$0.51
B
$0.83
C
$1.20
D
$1.58
6

Mrs. Rodriguez wants to pay her restaurant bill which is $24.00. If Mrs. Rodriguez wants to leave a 20% tip on the total, how much should she pay?

A
$20.35
B
$26.40
C
$28.80
D
$33.60
7

The price of a laptop was marked 80 percent off because it had a cracked screen.PercentsTotal80% x 20%100%$150 If this resulted in a savings of $600, what is the value of x in the table above?

A
15 %
B
20 %
C
25 %
D
40 %
8

Felipe used a 40 percent off coupon on a single item at the craft store which saved him $16.42. What would the item have cost if he had not used the coupon?

A
$22.99
B
$32.84
C
$41.05
D
$56.42
9

By using the 20 percent off coupon that she found in the newspaper, Jill saved $4 on the extra large bag of dog food that she bought. PercentsTotal20%20%20%20%20%100%$4$4$4$4$4 What was the cost of the bag of dog food without the coupon?

A
$8
B
$12
C
$16
D
$20
10

A flat-screen television was marked down by 35 percent, which reduced its price by $115.65. What was the original cost of the television before it was marked down?

A
$214.78
B
$330.43
C
$404.78
D
$4,047.75

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