SOLUTION: Jane has some nickels, dimes, and quarters that total 1.90. She has twice as many quarters as dimes. She has three times as many quarters as nickels. How many quarters does she hav

Algebra ->  Test -> SOLUTION: Jane has some nickels, dimes, and quarters that total 1.90. She has twice as many quarters as dimes. She has three times as many quarters as nickels. How many quarters does she hav      Log On


   



Question 314522: Jane has some nickels, dimes, and quarters that total 1.90. She has twice as many quarters as dimes. She has three times as many quarters as nickels. How many quarters does she have?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
N-number of nickels
D-number of dimes
Q-number of quarters
.
.
.
Q=2D
D=Q%2F2
.
.
Q=3N
N=Q%2F3
.
.
5N%2B10D%2B25Q=190
5%28Q%2F3%29%2B10%28Q%2F2%29%2B25Q=190
5%28Q%2F3%29%2B30Q=190
5Q%2B90Q=570
95Q=570
highlight%28Q=6%29
She has 6 quarters.