document.write( "Question 532145: a runner can run 4 miles in 30 minutes what is there speed in mph? \n" ); document.write( "
Algebra.Com's Answer #350689 by oberobic(2304)\"\" \"About 
You can put this solution on YOUR website!
Their speed = 4 miles/30 min.
\n" ); document.write( "30 min = 1/2 hr
\n" ); document.write( "4/(1/2) = 8 miles/hr
\n" ); document.write( "
\n" );