Algebra

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Dylan has $2.30 in dimes and nickels. The dimes exceed nickels by 5. Find the# of each kind.
let x= nickels=
Let x+5= dimes=
2.3=(.05)x+(.10)x+5
2.3= .05x+.10x+5.1
2.3=.15x+5.1
-2.8= .15x
-18.666666666repeating=x
what did i do wrong?

  • Algebra -

    You forgot confused the parentheses.

    2.3 = .05x + .10(x + 5)

    2.3 = .05x + .10x +.50

    1.8 = .15x

    12 = x

    I hope this helps. Thanks for asking.

  • Algebra -

    oh thanks, i forgot it was multiplication, i added instead. thanks so much for that!

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