document.write( "Question 685046: a biker travels a rate of 12 mphwhen there is no wind. Against the wind, he bikes 8 miles in the same time that it takes to bike 14 miles with the wind. what is the speed of the wind? \n" ); document.write( "
Algebra.Com's Answer #424313 by mananth(16946)\"\" \"About 
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biker speed = 12 mph
\n" ); document.write( "windspeed = x mph
\n" ); document.write( "
\n" ); document.write( "speed against wind 12 - x
\n" ); document.write( "speed with wind 12 + x
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\n" ); document.write( "Distance against wind 8 miles
\n" ); document.write( "Distance with wind 14 miles
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\n" ); document.write( "t=d/r time against = time with wind -
\n" ); document.write( "8/(12-x )=14/(12+x)8
\n" ); document.write( "8( 12 + x )= 14 (12 -x )
\n" ); document.write( "96 + 8 x = 168 - -14 x
\n" ); document.write( "14 x 8 x 168 + -96
\n" ); document.write( "22 x = 72
\n" ); document.write( "/ 22 check
\n" ); document.write( "x = 3.27 mph wind speed
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