document.write( "Question 840479: Steve traveled 600 miles at a certain speed. Had he gone 20mph faster, the trip would have taken 1 hour less,. Find the speed of his vehicle \n" ); document.write( "
Algebra.Com's Answer #506273 by richwmiller(17219)\"\" \"About 
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r*t=600,
\n" ); document.write( "(r+20)*(t-1)=600
\n" ); document.write( "r = 100 mph speed , t = 6 hours
\n" ); document.write( "r+20=120 t-1=5
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