<PRE><B>Question 962817</B>
A plane can fly 1260 miles in the same time as it takes a car to go 350 miles. If the car travels 130 mph slower than the plane, find the speed of the plane.
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let x=speed of car
(x+130)=speed of plane
travel time=distance/speed (same for car and plane
..
{{{1260/(x+130)=350/x}}}
350(x+130)=1260x
350x+45500=1260x
910x=45500x=50
x+130=180
speed of the plane.=180 mph</PRE>