SOLUTION: Jeff has $1.30 in change. He has twice as many nickels as dimes. He has half as many quarters as dimes. How many nickels, dimes and quarters does he have?
Algebra ->
Customizable Word Problem Solvers
-> Coins
-> SOLUTION: Jeff has $1.30 in change. He has twice as many nickels as dimes. He has half as many quarters as dimes. How many nickels, dimes and quarters does he have?
Log On
Question 558083: Jeff has $1.30 in change. He has twice as many nickels as dimes. He has half as many quarters as dimes. How many nickels, dimes and quarters does he have? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Jeff has $1.30 in change. He has twice as many nickels as dimes. He has half as many quarters as dimes. How many nickels, dimes and quarters does he have?
-------------------------------
n = 2d
d = 2q
5n + 10d + 25q = 130
-----
Substitute for n and for d and solve for "q":
---
5(2*2q) + 10(2q) + 25q = 130
20q + 20q + 25q = 130
65q = 130
q = 2 (# of quarters)
----
d = 2q = 4 (# of dimes)
----
n = 2d = 8 (# of dimes)
------
Cheers,
Stan H.
==============
(