document.write( "Question 187282This question is from textbook
\n" ); document.write( ": Felipe jobs for 10 miles and then walks another 10 miles. He jobs 2 1/2 miles per hour faster than he walks, and the entire distance of 20 miles takes 6 hours. find the rate at which he walks and the rate at which he jogs. \n" ); document.write( "
Algebra.Com's Answer #140428 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
Jogging:
\n" ); document.write( "\"d%5Bj%5D+=+r%5Bj%5D+%2A+t%5Bj%5D\"
\n" ); document.write( "Walking:
\n" ); document.write( "\"d%5Bw%5D+=+r%5Bw%5D+%2A+t%5Bw%5D\"
\n" ); document.write( "given:
\n" ); document.write( "\"d%5Bj%5D+=+10\" mi
\n" ); document.write( "\"d%5Bw%5D+=+10\" mi
\n" ); document.write( "\"r%5Bj%5D+=+r%5Bw%5D+%2B+2.5\" mi/hr
\n" ); document.write( "\"t%5Bj%5D+%2B+t%5Bw%5D+=+6\" hr
\n" ); document.write( "\"t%5Bj%5D+=+6+-+t%5Bw%5D\" hr
\n" ); document.write( "--------------------------
\n" ); document.write( "Jogging:
\n" ); document.write( "\"10+=+%28r%5Bw%5D+%2B+2.5%29%2A+%286+-+t%5Bw%5D%29\"
\n" ); document.write( "\"10+=+6r%5Bw%5D+%2B+15+-+r%5Bw%5D%2At%5Bw%5D+-+2.5t%5Bw%5D\"
\n" ); document.write( "\"10+=+6r%5Bw%5D+%2B+15+-+10+-+2.5t%5Bw%5D\"
\n" ); document.write( "(1)\"5+=+6r%5Bw%5D+-+2.5t%5Bw%5D\"
\n" ); document.write( "Walking:
\n" ); document.write( "\"10+=+r%5Bw%5D%2At%5Bw%5D\"
\n" ); document.write( "\"t%5Bw%5D+=+10%2Fr%5Bw%5D\"
\n" ); document.write( "Substitute this in (1)
\n" ); document.write( "(1) \"5+=+6r%5Bw%5D+-+2.5%2A%2810%2Fr%5Bw%5D%29\"
\n" ); document.write( "multiply both sides by \"r%5Bw%5D\"
\n" ); document.write( "(1) \"5r%5Bw%5D+=+6%2A%28r%5Bw%5D%29%5E2+-+25\"
\n" ); document.write( "(1) \"6%2A%28r%5Bw%5D%29%5E2+-+5r%5Bw%5D+-+25+=+0\"
\n" ); document.write( "Use quadratic formula to solve for \"r%5Bw%5D\"
\n" ); document.write( "Then find \"t%5Bw%5D\", then find \"r%5Bj%5D\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );