document.write( "Question 48859: Good evening. i would like to ask you to help me with this problem
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document.write( " i cannot work out, please would you help me?\r
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document.write( " (1) John makes business trip from his house to Portland in 2 hours. Three hours later, he returns home in traffic at 20mph less than his speed going. If John is gone a total of 8 hours, how fast did he travel to Portland. \n" );
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Algebra.Com's Answer #32352 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! DISTANCE=RATE*TIME & T=D/R OR 2=D/R OR D=2R GOING TO PORTLAND & (8-2-3)=D/(R-20) OR 3=D/(R-20) OR D=3R-60 RETURNING FROM PORTLAND THUS 2R=3R-60 OR R=60 MPH \n" ); document.write( "ON THE TRIP TO PORTLAND \n" ); document.write( " |