SOLUTION: Garrett has $150 in ten and twenty dollar bills. the number of ten dollar bills is one less than twice the number of twenty dollar bills. how many of each type does Garrett have?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Garrett has $150 in ten and twenty dollar bills. the number of ten dollar bills is one less than twice the number of twenty dollar bills. how many of each type does Garrett have?       Log On


   

Question 903342: Garrett has $150 in ten and twenty dollar bills. the number of ten dollar bills is one less than twice the number of twenty dollar bills. how many of each type does Garrett have?
I cant quite figure out how to set this question up if you could please help me that would be great.
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
10*n+20*y=150
n=2y-1
just plug in 2y-1 for y
y= twenty
n= ten