A bank teller has a total of 70 bills in five-, ten-, andtwenty-dollar denominations. the number of fives is threetimes the number of tens, while the total value of the money is$960. Find the number of each type of bill. Solve usngthe Echelon method. Can someone help me setting up this problem
Khadija Wells
Answered question
2021-01-08
Answer & Explanation
Usamah Prosser
Skilled2021-01-09Added 86 answers
off course the solution exists by hook or crook...
let the number of the 10-denomination bills =x
--------------------"----20-denomination bills=y
given that, # of 5-denomination bills = 3x, and that
3x+x+y=4x+y=70........................(i), and that
5(3x)+10(x)+20(y)=960 i.e.
5x+4y=192...........................(ii)
solving (i) and (ii) we get
# of 5-denomination bills=24
# of 10-denomination bills=8
# of 20-denomination bills = 38
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