SOLUTION: Four chocolate bars and three ice cream cones cost $5.30. Two chocolate bars and one ice cream cone costs $2.20. Find the cost of a chocolate bar and the cost of an ice cream cone.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Four chocolate bars and three ice cream cones cost $5.30. Two chocolate bars and one ice cream cone costs $2.20. Find the cost of a chocolate bar and the cost of an ice cream cone.      Log On


   

Question 880538: Four chocolate bars and three ice cream cones cost $5.30. Two chocolate bars and one ice cream cone costs $2.20. Find the cost of a chocolate bar and the cost of an ice cream cone.
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
x for PRICE of txocholate bar
y for PRICE of yce cryem cone
-The misspellings are intentional to help in choosing and remembering variable assignments - not really necessary; just a way to help.

4x%2B3y=5.30 and 2x%2By=2.20.

If you like Elimination Method, then second equation multiplied by 2 gives equivalently 4x+2y=4.40.

%284x%2B3y%29-%284x%2B2y%29=5.3-4.4
highlight%28y=0.90%29
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2x=2.20-y
x=1.10-y%2F2
x=1.10-0.90%2F2
x=1.10-0.45
highlight%28x=0.65%29.