Question 674803
 Dan has nickels, dimes and quarters.
:
Write an equation for each statement, get n and q in terms of d:
:
 He has a total of 33.60.
.05n + .10d + .25q = 33.60
5n + 10d + 25q = 3360, get rid of the decimals
:
 He has four times as many quarters as dimes
q = 4d
:
and one-half as many dimes as nickels.
n = 2d
:
Replace n with 2d, replace q with 4d
5(2d) + 10d + 25(4d) = 3360
10d + 10d + 100d = 3360
120d = 3360
d = 3360/120
d = 28 dimes
:
See if you can find n and q, and check it in the 1st equation