SOLUTION: The computer at the bank can process bank statements in 15 hours. A new faster computer can do the job 10 hours. If the bank uses both computers together, how long will it take to

Algebra ->  Customizable Word Problem Solvers  -> Evaluation -> SOLUTION: The computer at the bank can process bank statements in 15 hours. A new faster computer can do the job 10 hours. If the bank uses both computers together, how long will it take to       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 1099820: The computer at the bank can process bank statements in 15 hours. A new faster computer can do the job 10 hours. If the bank uses both computers together, how long will it take to process a statements?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Rate x Time = Output
.
.
R%5B1%5D%2A15=1
R%5B1%5D=1%2F15
.
.
R%5B2%5D%2A10=1
R%5B2%5D=1%2F10
So then together,
%28R%5B1%5D%2BR%5B2%5D%29%2At=1
%281%2F15%2B1%2F10%29%2At=1
%2810%2F150%2B15%2F150%29%2At=1
%2825%2F150%29t=1
%281%2F6%29t=1
t=6
6 hours working together