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Mathematics 7 Online
OpenStudy (anonymous):

How do I Solve Word Problems with Linear Equations?

OpenStudy (saifoo.khan):

y = mx + c

OpenStudy (saifoo.khan):

post any problem/example.

OpenStudy (anonymous):

The dress store is having a sale where all merchandise is 1/4 off. A woman buys $48 of merchandise at the sale price.

OpenStudy (anonymous):

What would she have had to pay at the regular price? (thats the Q)

OpenStudy (anonymous):

I don't know how to get the answer.

OpenStudy (anonymous):

well, if its 25% off, then the 48bucks is 75%. so the original price is (48/75)(100) = 64bucks

OpenStudy (anonymous):

How did you figure that out?

OpenStudy (anonymous):

if we divide 48 by 75 then we found out the price 'per percent' since the 48bucks is only 75% of the original price. so we then multiply the 'per percent' price by 100 to get the original price, which is 100%.

OpenStudy (anonymous):

or you can say x - 0.25x = 48, where x is the original price, then solve for x

OpenStudy (anonymous):

Okay, thanks. I believe I understand it better now.

OpenStudy (anonymous):

thats good, and ur welcome

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