document.write( "Question 1098801: Kerry and Luke biked a total of 38 miles in one weekend.Kerry bikes 4 more miles than Luke. Write and solve an equation to find how many miles Luke biked. How many miles did Kerry ride. \n" ); document.write( "

Algebra.Com's Answer #713172 by ikleyn(52921) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "L + K = 38      (1)\r\n" );
document.write( "\r\n" );
document.write( "K = L+4         (2)\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "=======>  substitute it in eq(1).  You will get\r\n" );
document.write( "\r\n" );
document.write( "L + (L+4) = 38,\r\n" );
document.write( "\r\n" );
document.write( "2L + 4 = 38,\r\n" );
document.write( "\r\n" );
document.write( "2L = 38-4 = 34  ====>  L =  = 17.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Answer.  Luke biked 17 miles, Kerry 17+4 = 21.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Check.  17 + 21 = 38.\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );