SOLUTION: Gina's piggy bank contains $10 and $5 coins only. If there are 75 coins worth $450, how many coins each kind are there?
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Question 1089884: Gina's piggy bank contains $10 and $5 coins only. If there are 75 coins worth $450, how many coins each kind are there?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
1.
.
.
2.
.
.
Substituting from 1 into 2,
Solve for T, then use either equation to solve for F.
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