SOLUTION: From his daily allowance, Eric has saved 74 coins made up of denominations of one peso and five pesos. How many of each kind has he if the coins amount to P170

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Question 202249: From his daily allowance, Eric has saved 74 coins made up of denominations of one peso and five pesos. How many of each kind has he if the coins amount to P170
Answer by dyakobovitch(40) About Me  (Show Source):
You can put this solution on YOUR website!
Given that Eric has 170 pesos, you will be dealing with a two variable system of equations.
Let: X= one peso coins and Y= five peso coins.
Solved by pluggable solver: Linear System solver (using determinant)
Solve:
+system%28+%0D%0A++++1%5Cx+%2B+1%5Cy+=+74%2C%0D%0A++++1%5Cx+%2B+5%5Cy+=+170+%29%0D%0A++

Any system of equations:


has solution

or



(x=50, y=24}


Therefore, Eric has 50 one peso coins and 24 five peso coins.