document.write( "Question 679700: joe jogs 2.5 slower than kelly jogs. in the time that it takes joe to jog 30 miles, kathy can jog 40 miles. find the jogging speed of each person. \n" ); document.write( "
Algebra.Com's Answer #422021 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
joe jogs 2.5 slower than kelly jogs. in the time that it takes joe to jog 30 miles, kathy can jog 40 miles. find the jogging speed of each person.
\n" ); document.write( "--------------
\n" ); document.write( "2.5 what?
\n" ); document.write( "If it's 2.5 mi/hr,
\n" ); document.write( "r = Joe's rate
\n" ); document.write( "-----
\n" ); document.write( "30/r = 40/(r+2.5)
\n" ); document.write( "30r + 75 = 40r
\n" ); document.write( "r = 7.5 mi/hr
\n" ); document.write( "Kelly's rate = 10 mi/hr
\n" ); document.write( "
\n" ); document.write( "
\n" );