Posted by anonymous on Saturday, October 27, 2007 at 12:55pm.
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  PsyDAG, Saturday, October 27, 2007 at 1:02pm
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  anonymous, Saturday, October 27, 2007 at 1:07pm
oh thanks, i forgot it was multiplication, i added instead. thanks so much for that!