Based on the rate at which the computers are printing bills, the number of bills that the second computer was still to print was 4,000 bills.
How long did the first computer take to finish?
= Number of bills / Bills per hour
= 43,000 / 8,600
= 5 hours
How many bills was the second computer left with?
This can be found by the formula:
= Number of bills to print - Bills printed in 5 hours
= Number of bills to print - ( Bills printed per hour x Number of hours)
Solving gives:
= 43,000 - (7,800 x 5)
= 4,000 bills
Find out more on calculating rates at https://brainly.com/question/145385.
