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armymade armymade
  • 15-02-2017
  • Mathematics
Answered

A fax machine and a printer cost a total of $840. If the printer costs $360 more than the fax machine, how much did the fax machine cost ?

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sierracwrites
sierracwrites sierracwrites
  • 15-02-2017

I think it would cost $120 dollars I'm not quite sure...

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14egor
14egor 14egor
  • 15-02-2017

P+F=840
P-F=360 =>  P=360+F

360+F+F=840 F=(840-360)/2

F=240

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