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 more twenty than she has tens. How man of ea

Algebra ->  Customizable Word Problem Solvers  -> Evaluation -> 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 more twenty than she has tens. How man of ea      Log On

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Question 308798: 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 more twenty than she has tens. How man of each denomination does she have? We are working on solving applied problems with three equations. I just need some help with the equations. Thank you.
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
x = 5's , y = 10's , z = 20's

"Donesha has $100 in five, ten and twenty dollar bills" ___ 5x + 10y + 20z = 100

"Donesha has twice as many five dollar bills as ten dollar bills" ___ x = 2y

"she has one more twenty than she has tens" ___ z = y + 1