document.write( "Question 828498: Jess walked for 45 minutes at 3 km/h and then ran for half an hour at x km/h. At the end of that point she was 6 kmfrom the starting point. Find the value of x. \n" ); document.write( "
Algebra.Com's Answer #499529 by ankor@dixie-net.com(22740)\"\" \"About 
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Jess walked for 45 minutes at 3 km/h and then ran for half an hour at x km/h.
\n" ); document.write( " At the end of that point she was 6 km from the starting point.
\n" ); document.write( " Find the value of x.
\n" ); document.write( ":
\n" ); document.write( "Change 45 min to .75 hrs
\n" ); document.write( ":
\n" ); document.write( "Write a distance equation, dist = speed * time
\n" ); document.write( "3(.75) + .5x = 6
\n" ); document.write( "2.25 + .5x = 6
\n" ); document.write( ".5x = 6 - 2.25
\n" ); document.write( ".5x = 3.75
\n" ); document.write( "x = 3.75/.5
\n" ); document.write( "x = 7.5 km/hr \n" ); document.write( "
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