SOLUTION: a dvd rack is marked up $18.00, which is 50% markup based on cost. what was the cost of the dvd?

Question 629702: a dvd rack is marked up $18.00, which is 50% markup based on cost. what was the cost of the dvd?
Found 3 solutions by 55305, wilft1, MathTherapy:
Answer by 55305(86)   (Show Source): You can put this solution on YOUR website!
I made an assumption that you were asking for the price of the dvd RACK rather than the cost of a dvd.
So we know that $18 is 50% of the cost before the markup. And that means that cost before the the markup is $36, and then the price after the markup is $54.
Answer by wilft1(217)   (Show Source): You can put this solution on YOUR website!
well... if 18 is a 50 percent markup, then we know that price is 150 percent of the original price, so we can go ahead and find what 2/3 of the price is to find the original price, easy way is divide by 3 then multiply by 2. your answer will be $12
Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

a dvd rack is marked up $18.00, which is 50% markup based on cost. what was the cost of the dvd?

Let cost of DVD rack be R

Since after a 50% markup, the price was $18, then we can say that:

1.5R = 18 ----- Cross-multiplying

R, or cost of rack = , or $

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