Question

This Question: 2 pts
20 of 40 (19 complete)
This Test: 80 pts
A bank teller has some five-dollar bills and some twenty-dollar bills. The teller has 10 more of the twenties. The total value of the money is $675 Find the number of five-dollar bills that the teller has

Answer 1

Answer:

19 five dollar bills

Step-by-step explanation:

x = $5 bills and y = $20 bills

5x + 20y = 675

y = x + 10

now we sub

5x + 20(x + 10) = 675

5x + 20x + 200 = 675

5x + 20x = 675 - 200

25x = 475

x = 475/25

x = 19 <===

y = x + 10

y = 19 + 10

y = 29

lets check it..

5x + 20y = 675

5(19) + 20(29) = 675

95 + 580 = 675

675 = 675 (correct)...so it checks out

the bank teller has 19 five dollar bills <===