Problema Solution
A cashier has a total of 91 bills, made up of fives and fifties. The total value of the money is $2570. How much of each kind does he have?
Answer provided by our tutors
x+y=91, 5x+50y=2570.
x=91-y so 5(91-y)+50y=2570. 455-5y+50y=2570. 45y=2115. y=47, so x+47=91, and x=44.
There are 44 $5 bills and 47 $50 bills.