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3 packets of french fries,2 cheese burgers and 1 cup of drinks cost $109.5. 1 packet of french fries, 2 cheese burgers and 3 cups of drinks cost 112.5. what is the cost of a set?

coolkidz

by coolkidz at June 10, 2010

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Ok... I knew there had to be a trick... If you add the two equations together you get... 4f + 4b + 4c = $222.00 divide both sides of the = by 4 gives.... 1f + 1b + 1c = $55.50 All I can say, better be a pretty nice burger fries and a drink for $55.50!!!

Hartman Hartman June 10, 2010

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This is a systems of equations problem.  Harder than I first thought....  normally with 3 unknowns you need 3 equations.... hmmmm....  I'll be back with you.

Hartman Hartman June 10, 2010

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