document.write( "Question 660993: Agent S. needs to return in 2 minutes to get picked up. It takes him 1.2 minutes to travel against the wind and 0.8 minutes to travel back with the wind. How fast does he travel in still air given the wind is blowing at 2 inches per minute.\r
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Algebra.Com's Answer #411437 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
Let \"+s+\" = his speed in still air in in/min
\n" ); document.write( "\"+s+%2B+2+\" = his speed in inches/min going with the wind
\n" ); document.write( "\"+s+-+2+\" = his speed in inches/min going against the wind
\n" ); document.write( "Let \"+d+\" = distance he has to travel
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\n" ); document.write( "given:
\n" ); document.write( "\"+s+%2B+2+=+d+%2F+.8+\"
\n" ); document.write( "\"+s+-+2+=+d+%2F+1.2+\"
\n" ); document.write( "-----------------------
\n" ); document.write( "\"+d+=+.8%2A%28+s+%2B+2+%29+\"
\n" ); document.write( "\"+d+=+1.2%2A%28+s+-+2+%29+\"
\n" ); document.write( "---------------------------
\n" ); document.write( "\"+.8%2A%28+s+%2B+2+%29+=+1.2%2A%28+s+-+2+%29+\"
\n" ); document.write( "\"+.8s+%2B+1.6+=+1.2s+-+2.4+\"
\n" ); document.write( "\"+.4s+=+4+\"
\n" ); document.write( "\"+s+=+10+\"
\n" ); document.write( "He travels 10 in/min in still air
\n" ); document.write( "check:
\n" ); document.write( "\"+s+%2B+2+=+d+%2F+.8+\"
\n" ); document.write( "\"+12+=+d%2F.8+\"
\n" ); document.write( "\"+d+=+.8%2A12+\"
\n" ); document.write( "\"+d+=+9.6+\"
\n" ); document.write( "and
\n" ); document.write( "\"+s+-+2+=+d+%2F+1.2+\"
\n" ); document.write( "\"+8+=+d+%2F+1.2+\"
\n" ); document.write( "\"+d+=+1.2%2A8+\"
\n" ); document.write( "\"+d+=+9.6+\"
\n" ); document.write( "OK\r
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