document.write( "Question 1157795: Sam flew a distance of 500/hrs miles at a normal speed. On the trip back ( also 500 miles) Sam doubled the speed of the plane. How fast did Sam fly on the way back if the total travelling time was 5 hours ?
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Algebra.Com's Answer #780646 by josgarithmetic(39630)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "       SPEED     TIME         DISTANCE\r\n" );
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document.write( "TO       r        500/r        500\r\n" );
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document.write( "BACK    2r        500/(2r)     500\r\n" );
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document.write( "Total              5\r\n" );
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\n" ); document.write( "\"500%2Fr%2B500%2F%282r%29=5\"
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\n" ); document.write( "\n" ); document.write( "\"highlight%282r=300%29\"
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