SOLUTION: donesha has 100$ in five,ten, and twenty dollar bills. Donesha has twice as many five dollar bills as ten dollar bills, and she has one twenty more than she has tens. how many of e

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: donesha has 100$ in five,ten, and twenty dollar bills. Donesha has twice as many five dollar bills as ten dollar bills, and she has one twenty more than she has tens. how many of e      Log On


   

Question 454747: donesha has 100$ in five,ten, and twenty dollar bills. Donesha has twice as many five dollar bills as ten dollar bills, and she has one twenty more than she has tens. how many of each denomination does Donesha have?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
In America we write $100 not 100$.
We also use capital letters for names.
Donesha not donesha.
5f+10t+20y=100
f=2t
y=t+1
5*2t+10t+20(t+1)=100
10t+10t+20t+20=100
40t=80
t=2 tens
f=4 fives
y=3 twenties
check
5*4+2*10+3*20=100
20+20+60=100
ok