SOLUTION: A jet plane, flying 75 mph faster than a propeller plane, travels 5950 miles in 3 hours less time than the propeller plane takes to fly the same distance. How fast does each plane
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Question 903080: A jet plane, flying 75 mph faster than a propeller plane, travels 5950 miles in 3 hours less time than the propeller plane takes to fly the same distance. How fast does each plane fly? Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! Re TY, TY, typo started out a bit of a mess :)
5950/r -5950/(r+75)= 3 |Multiplying thru by r(r+75) so as all denominators = 1
5950r + 75(5950)-+5950r = 3r(r+75)
3r^2 + 225r - 75(5950) = 0
r^2 + 75r - 148,750 = 0
(r+425)(r- 350) = 0(Tossing out the negative solution for unit measure)
r = 350mph, slower plane. Faster plane 425mph
