document.write( "Question 952377: A plane can fly 900 miles in the same time as it takes a car to go 250 miles. If the car travels 130 mph slower than the plane, find the speed of the plane. \n" ); document.write( "

Algebra.Com's Answer #581611 by MathTherapy(10553) $\"\"$ $\"About$

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\n" ); document.write( "A plane can fly 900 miles in the same time as it takes a car to go 250 miles. If the car travels 130 mph slower than the plane, find the speed of the plane.
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Let speed of plane be S
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document.write( "Then speed of car = S - 130
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document.write( "Time plane takes to travel 900 miles: 
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document.write( "Time car takes to travel 250 miles: 
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document.write( "Since times are equal, we get: 
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document.write( "900(S - 130) = 250(S) -------- Cross-multiplying
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document.write( "900S - 117,000 = 250S
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document.write( "900S – 250S = 117,000
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document.write( "650S = 117,000
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document.write( "S, or speed of plane = , or  mph \n" );
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