SOLUTION: A bottle of Coke is $2. You can exchange two empty bottles for a bottle of Coke. 4 bottle caps for a bottle of coke. derive an equation that shows this and how many bottles

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: A bottle of Coke is $2. You can exchange two empty bottles for a bottle of Coke. 4 bottle caps for a bottle of coke. derive an equation that shows this and how many bottles       Log On

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Question 996681: A bottle of Coke is $2.
You can exchange two empty bottles for a bottle of Coke.
4 bottle caps for a bottle of coke.
derive an equation that shows this and
how many bottles of coke can you buy with $20

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
If I read this right:
Let +a+ = number of empty bottles
Let +b+ = number of bottle caps
Let +n+ = number of bottles of Coke you can get
------------------
+n+=+a%2F2+%2B+b%2F4+
------------------
and with $20,
+n+=+20%2F2+
+n+=+10+
You can get 10 bottles opf Coke with $20