SOLUTION: A stack of 130 half dollars and quarters is worth $40. Find the number of each type of coin.

SOLUTION: A stack of 130 half dollars and quarters is worth $40. Find the number of each type of coin.

Algebra.Com

Question 984739: A stack of 130 half dollars and quarters is worth $40. Find the number of each type of coin.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Let

represent the number of half-dollars and let

represent the number of quarters. So:

Then

is the value of the half-dollars in cents and

is the value of the quarters in cents. And finally, the total value of all the coins is 4000 cents. So:

Solve the 2X2 system for

and

John

My calculator said it, I believe it, that settles it

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