SOLUTION: Printer A can print a report in 3 hours. Printer B can print the same report in 4 hours. How long would it take both printers, working together, to print the report?
Algebra ->
Inequalities
-> SOLUTION: Printer A can print a report in 3 hours. Printer B can print the same report in 4 hours. How long would it take both printers, working together, to print the report?
Log On
Question 193317: Printer A can print a report in 3 hours. Printer B can print the same report in 4 hours. How long would it take both printers, working together, to print the report? Answer by Mathtut(3670) (Show Source):
You can put this solution on YOUR website! printer 1 can do 1/3 of the report per hour
printer 2 can do 1/4 of the report per hour
:
together:
:
(1/4+1/3)t=1
:
(3/12+4/12)t=1
:
(7/12)t=1
:
t=12/7 of an hour for both
(