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If the old shirt cost 100 dollars, and is then marked down 35%, that means it would cost $65 after markdown.
(notice that in decimals1.00 - 0.35 = 0.65)
The problem here is that the shirt did not originally cost $100 or that would be too easy. :-p Since it costs $15 AFTER being marked down... we must solve for the old price (call it P)
(old price) times ( 0.65) = 15
0.65P = 15
Hope this helps. :)
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Two things about your answer:
1) Test it to make sure it's true! (take P and multiply it by 0.65, which is the same as taking off 35%).
2) Dollars and Cents only go up to the hundredths place, so round your answer accordingly. Nobody pays a bill for $23.0769! ;-p
LOL ok 23.08!!
after working this, i had 42.86
if 15.00 is 35% of the original price, then the original price is unknown so say, Y.
35% x Y=15
Saosogeek -- sorry but that is incorrect.
To take off 35% means:
(original price) MINUS (35% of original price) = (new price)
If we let P = original price and $15 be the new price:
P - 0.35P = 15
But the left side is just 0.65P
so that is why you write
0.65P = 15
The answer MekMek has is correct.
i think i get it now :) thanks for the further explanation :)