SOLUTION: Don was setting up two aquariums in his new office.At the pet store,salt water fish were priced ar $2 each and fresh water fish were priced at $3 each.He bought some of each kind a

Question 179552: Don was setting up two aquariums in his new office.At the pet store,salt water fish were priced ar $2 each and fresh water fish were priced at $3 each.He bought some of each kind and paid $31 for a total of 13 fish.How many freah water fish did he buy?
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
Let x = fresh water fish bought
then
13-x = salt water fish bought
.
3x + 2(13-x) = 31
3x + 26 - 2x = 31
x + 26 = 31
x = 5
He bought 5 fresh water fishes.

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