algebra (21)
posted by Anita .
A polot flies 630 miles wit a tail wind of 35 miles per hour. Against the wind, he flies only 455 miles in the same amount of time. Find the rate of the plane in still air.

630=(r+35)time
455=(r35)time
Divide the second equation into the first...
630/455= (r+35)/(r35)
solve for r. 
I am still not coming up with the correct answer can you show me how to work it out??? Help

Thanks once again.. bobpursley

train A and B are traveling in the same direction on a parallel tracks. Train A is traveling at 40 miles per hour and Train B is traveling at 48 miles per hour. Train A passes a station at 3:15pm. If train B passes the same station at 3:45pm. At what time will train B catch up with train A