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 chocolate bar and the c

Algebra ->  Equations -> 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 chocolate bar and the c      Log On


   

Question 44573: 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 chocolate bar and the cost of a pack of gum.
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
Cost of Chocolate Bar: b
Cost of Pack of Gum: p
Equation:
3b+%2B+p+=+1.75
2b+%2B+4p+=+2.00
Combine:
-12b+-+4p+=+-7
+
2b+%2B+4p+=+2
=
-10b+=+-5
b+=+0.50
Plug:
3b+%2B+p+=+1.75
3%280.50%29+%2B+p+=+1.75
1.5+%2B+p+=+1.75
p+=+0.25
Bar of Chocolate: $0.50
Pack of Gum: $0.25