document.write( "Question 858444: It takes john 12 seconds to run 80meters. If he runs at the same rate,how long does it take him to run 140meters? \n" ); document.write( "
Algebra.Com's Answer #517494 by tommyt3rd(5050)\"\" \"About 
You can put this solution on YOUR website!
12/80=x/140\r
\n" ); document.write( "\n" ); document.write( "x=12*140/80
\n" ); document.write( "x=21 sec
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