A sign says that the price on all music equipment is 30% off the original price. you buy an electric guitar for the sale price o
f $315.
A-what is the original price?
B-How much money did you save off of the original price?
C-What percent of the original price is the sale price?
2 answers:
A. 30% + $315 = $409.5
B. $315 - $409.5 = 94.5
C. 70%
Answer:
Step-by-step explanation:
sale price = original price minus discount.
discount = original price * discount percent / 100.
let s represent the sale price.
let p represent the original price.
let d represent the discount.
let k represent the discount percent.
the above formulas become:
s = p - d
d = p * k/100
we know that s = 315.
we know that k = 30.
formulas become:
315 = p - d
d = p * 30/100
simplify these formulas to get:
315 = p - d
d = .3p
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