A local shoe store buys shoes at a wholesale price and then marks them up 80% to calculate the retail price. The wholesale price varies, depending on the quantity of shoes purchased.
(2 points)
Quantity
0-20 pairs
21-40 pairs
41-60 pairs
61-80 pairs
81 or more pairs
Wholesale Price
(per pair)
$25.00 each
$23.00 each
$21.00 each
$19.00 each
$17.00 each
Write an equation that could be used to find the retail price for each range. How do you know the equation will work consistently for each range? (2 points)
Answers
Answer:

MATH MATH EQUATIONS MATHEMATICS MATH WORD PROBLEM
Jonaseth B.
asked • 02/22/16
Part 1A) A shoe store buys shoes at a wholesale price and marks them up 80% to calculate the retail price.
Part 1B) The wholesale price varies, depending on the quantity of shoes purchased
Quantity
0-20 pairs 21-40 pairs 41-60 pairs 61-80 pairs 81 or more pairs
↑ ↑ ↑ ↑ ↑
↓ ↓ ↓ ↓ ↓
$25.00 each $23.00 each $21.00 each $19.00 each $17.00 each
Wholesale Price (per pair)
Write an equation that could be used to find the retail price for each range. How do you know the equation will work consistently for each range?
Please help I don't understand.
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David W. answered • 02/22/16
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Jonaseth, let's look at something. Let's say I purchase an item for $5 that has an 8% sales tax. I can multilpy 5(.08) = .40 and add the .40 to 5 to get my total price of $5.40. My equation is $5 + $5(.08
ow, I'll show you the first group. You are adding to the $25 80% of that $25, so we can do the same thing.
$25 + $25(.80) = $25 + $20 = $45Now, the question is asking you to write one equation. If we let w = the wholesale price and r = the retail price, then r = w + .80w.
It will work for all the groups because you are adding 80% to each wholesale price.
Hope this helps!