SOLUTION: Bruce discovered that the wishing well contained $9 in nickles and dimes and that there were 30 more dimes than nickles. How many coins of each type were there?

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Question 122188: Bruce discovered that the wishing well contained $9 in nickles and dimes and that there were 30 more dimes than nickles. How many coins of each type were there?
Found 2 solutions by jasonlin00, stanbon:
Answer by jasonlin00(6) About Me  (Show Source):
Answer by stanbon(75887) About Me  (Show Source):
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Bruce discovered that the wishing well contained $9 in nickles and dimes and that there were 30 more dimes than nickles. How many coins of each type were there?
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Let # of nickels be "x"; Value is 5x cents.
# of dimes is "x+30" ; Value is 10(x+30) = 10x+300 cents
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EQUATION:
value + value = 900 cents
5x + 10x+300 = 900
15x = 600
x = 40 (# of nickels)
x+30=70 (# of dimes)
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Cheers,
Stan H.