Homework Help: Pre algebra

Posted by Guy on Tuesday, June 22, 2010 at 1:34pm.

A store was offering 30 % off everything in the bike store . A boy bought a bike for $91 dollars. How much was the original price of the bike? please explain each step. We are studying proportions and percents. thanks

Pre algebra - Damon, Tuesday, June 22, 2010 at 1:36pm
30% off is 70% on
70% is .70
.70 p = 91
p = 91/.7

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