SOLUTION: please help this is from a work sheet Thank you in advance Sally bought three chocolate bars and a pack of gum and paid $1.75.Jake bought two chocolate bars and four packs of gu

Question 92255: please help this is from a work sheet Thank you in advance
Sally bought three chocolate bars and a pack of gum and paid $1.75.Jake bought two chocolate bars and four packs of gum and paid $2.00.Find the cost of a chocolate bar and the cost of a pack of gum.
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
3C+G=175 OR G=175-3C
2C+4G=200 NOW SUBSTITUTE (175-3C) FOR G IN THIS EQUATION & SOLVE FOR C
2C+4(175-3C)=200
2C+700-12C=200
-10C=200-500
-10C=-500
C=-500/-10
C=50 COST OF THE CHOCOLATE BAR.
2*50+4G=200
100+4G=200
4G=200-100
4G=100
G=100/4
G=25 COST OF THE GUM.
PROOF
3*50+25=175
150+25=175
175=175
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