# algebra (21)

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.

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1. 630=(r+35)time
455=(r-35)time

Divide the second equation into the first...

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

solve for r.

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bobpursley
2. Thanks once again.. bobpursley

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3. I am still not coming up with the correct answer can you show me how to work it out??? Help

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4. 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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