SOLUTION: Joan can complete a paper route 20 minutes faster than Lisa. If they work together, they can complete the route in 1 hour. How long (in minutes) does it take Joan to complete the r

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Joan can complete a paper route 20 minutes faster than Lisa. If they work together, they can complete the route in 1 hour. How long (in minutes) does it take Joan to complete the r      Log On


   

Question 849537: Joan can complete a paper route 20 minutes faster than Lisa. If they work together, they can complete the route in 1 hour. How long (in minutes) does it take Joan to complete the rote on her own?
Please show all steps as the 20 minutes may change to 35 mins, 40 mins, etc. every time the homework problem is opened online!
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
1/x+1/(x+35)=1/60
(2 x+35)/(x (x+35)) = 1/60
x = 105