After a reduction of 2/7, TV sold for $625. Find orig. price

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Treeclimber
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After a reduction of 2/7, TV sold for $625. Find orig. price

Postby Treeclimber » Thu Aug 27, 2009 6:52 am

After a reduction of 2/7 , a TV sold for $625. WHat was its original price?
x-.28x=625
.72x=625
divide both sides by .72
x=868.80
where did i go wrong?

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stapel_eliz
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Postby stapel_eliz » Thu Aug 27, 2009 11:30 am

Probably the error was in replacing the exact fraction with a decimal approximation. Try using the same steps, but with "2/7" instead of "0.28", and see what you get. :wink:


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