Problema Solution
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 provided by our tutors
3c + g = 1.75
2c + 4g = 2.00
-12c - 4g = -7
2c + 4g = 2.00
-10c = -5.00
c = .50
g = .25
So, a chocolate bar is 0.50 and a pack of gum is 0.25.