SOLUTION: A coin collector has $45 in quarters and dimes. How many coins of each kind does he hae if the total number of his coins is 240? Thank you for all your help!

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Question 48655: A coin collector has $45 in quarters and dimes. How many coins of each kind does he hae if the total number of his coins is 240?
Thank you for all your help!
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A coin collector has $45 in quarters and dimes. How many coins of each kind does he hae if the total number of his coins is 240?
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Quarter DATA:
number of quarters= x ; value of these quarters = 25x cents
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Dime DATA:
number of dimes= 240-x ; value of these dimes = 10(240-x)=2400-10x cents
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EQUATION:
value + value = value
25x + 2400-10x = 4500 cents
15x=2100
x=140 (number of quarters)
200-x=60(number of dimes)
Cheers,
Stan H.