Posted by **Anita** on Friday, November 9, 2007 at 7:36pm.

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.

- algebra (21) -
**bobpursley**, Friday, November 9, 2007 at 7:46pm
630=(r+35)time

455=(r-35)time

Divide the second equation into the first...

630/455= (r+35)/(r-35)

solve for r.

- algebra (21) -
**Anita**, Friday, November 9, 2007 at 8:01pm
Thanks once again.. bobpursley

- algebra (21) -
**jeffery**, Sunday, April 1, 2012 at 2:22pm
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

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