document.write( "Question 169022: Natasha drove from Bedington to Portsmouth at an average speed of 100 km/h. On the way back she drove at 75 km/h. Her trip took a total of 3.5 hours. What is the distance between Bedington and Portsmouth? \n" ); document.write( "
Algebra.Com's Answer #124650 by checkley77(12844)\"\" \"About 
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D=RT
\n" ); document.write( "100X=75(3.5-X)
\n" ); document.write( "100X=262.5-75X
\n" ); document.write( "100X+75X=262.5
\n" ); document.write( "175X=262.5
\n" ); document.write( "X=262.5/175
\n" ); document.write( "X=1.5 HOURS FOR THE 100 KMH DRIVE.
\n" ); document.write( "3.5-1.5=2 HOURS FOR THE 75 KMH DRIVE.
\n" ); document.write( "100*1.5=75*2
\n" ); document.write( "150=150 ANS. FOR THE DISTANCE BETWEEN BEDINGTON & PORTSMOUTH. \r
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