document.write( "Question 848432: Jessica walks and jogs to the university each day. If she averages 5 km/hr walking 9 km/hr jogging, how far does she jog in the distance from her home to the university is 8 km and Jessica makes the trip in 1 hour? \n" ); document.write( "
Algebra.Com's Answer #511074 by richwmiller(17219)\"\" \"About 
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w+j=1,
\n" ); document.write( "5w+9j=8
\n" ); document.write( "j = 3/4, w = 1/4 hour
\n" ); document.write( "jog 9*3/4=27/4 km
\n" ); document.write( "walk 5*1/4=5/4 km
\n" ); document.write( "check
\n" ); document.write( "9*3/4+5/4=8
\n" ); document.write( "27/4+5/4=32/4
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