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Mathematics 37 Online
OpenStudy (anonymous):

A computer company gives a discount of 10% on a new piece of software. If it makes a profit of 9%, what percent does the marked price exceed the cost price?

OpenStudy (unklerhaukus):

marked price = 100%

OpenStudy (anonymous):

original price=o o(1+.09)*(.9)=

OpenStudy (unklerhaukus):

marked price - discount =paid price paid price = profit+cost price

OpenStudy (unklerhaukus):

marked price - cost price = ?

OpenStudy (anonymous):

Well if the marked price was 100, minus 10% it would be $90. I get that part, but after that I'm lost.

OpenStudy (unklerhaukus):

so 90%=profit +cost price profit =9%

OpenStudy (unklerhaukus):

what is the cost price?

OpenStudy (anonymous):

The question itself doesn't have one, but I figured we'd use $100

OpenStudy (unklerhaukus):

try that bit again

OpenStudy (anonymous):

THis is where I get confused. But if we go by the work, then $10?

OpenStudy (unklerhaukus):

how did you get 10?

OpenStudy (anonymous):

90/9 but for some reason I keep thinking it should be the other way around...

OpenStudy (unklerhaukus):

90%=profit +cost price 90%-profit =cost price profit =9% cost price=?

OpenStudy (anonymous):

81

OpenStudy (anonymous):

-Makes a note.- Never do this on 2 hours of sleep.

OpenStudy (unklerhaukus):

the question is asking for this quantity marked price - cost price =

OpenStudy (anonymous):

100-81 = 19

OpenStudy (unklerhaukus):

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OpenStudy (unklerhaukus):

this is the mark up

OpenStudy (anonymous):

Okay. I think I halfway get it now.

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