SOLUTION: Jane bought a pencil and received change for 3 pesos in 20 coins. If coins are in terms of 25 cents and 5 cents coins, how many of each kind are given?

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Question 1157359: Jane bought a pencil and received change for 3 pesos in 20 coins. If coins are in terms of 25 cents and 5 cents coins, how many of each kind are given?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
5 cents=x
25 cents=20-x
.05x+.25*(20-x)=3
.05x+ 5.00-.25x=3
-.20x=-2
x=10 5 cent coins (0.50)
20-x=10. 25 cent coins(2.50)