document.write( "Question 428269: Two automobiles leave the same location traveling in opposite directions. The blue car travels x mph; the red car travels y mph. How long will it be before the cars are 200 miles apart, if the red car is traveling 10 mph slower? \n" ); document.write( "
Algebra.Com's Answer #297720 by stanbon(75887)\"\" \"About 
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Two automobiles leave the same location traveling in opposite directions. The blue car travels x mph; the red car travels y mph. How long will it be before the cars are 200 miles apart, if the red car is traveling 10 mph slower?
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\n" ); document.write( "Equations:
\n" ); document.write( "y = x-10 mph
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\n" ); document.write( "The separation rate of the two cars is x+y or x+x-10 = 2x-10
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\n" ); document.write( "time = distance/rate
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\n" ); document.write( "time = 200/(2x-10) = 200/(2(x-5)) = 100/(x-5) hrs.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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