document.write( "Question 186781: A certain trip took 40 min to complete. If half the distance was 100 and the other half at 60, what's the distance traveled during the trip?
\n" ); document.write( "a) 68 b) 50
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Algebra.Com's Answer #140022 by checkley77(12844)\"\" \"About 
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D=RT
\n" ); document.write( "T=D/R
\n" ); document.write( "2/3=(D/2)/100+(D/2)/60
\n" ); document.write( "2/3=D/2*1/100+D/2*1/60
\n" ); document.write( "2/3=D/200+D/120
\n" ); document.write( "2/3=(120D+200D)/(200*120)
\n" ); document.write( "2/3=320D/24,000
\n" ); document.write( "3*320D=2*24,000
\n" ); document.write( "960D=48,000
\n" ); document.write( "D=48,000/960
\n" ); document.write( "D=50 MILES IS THE DISTANCE OF THE TRIP.\r
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