document.write( "Question 879186: A car went a distance of 90 kilometers at a steady speed and returned along the same route at half that speed. The time for the round trip was 4 and a half hours. Find the two speeds
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Algebra.Com's Answer #530562 by ewatrrr(24785)\"\" \"About 
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document.write( "Hi
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document.write( "Using total time for the trip in the Set Up
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document.write( "\"90mi%2Fr+%2B+90mi%2F%28r%2F2%29+=+8%2F2\"
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document.write( "\"90%2Fr+%2B+180%2Fr+=+8%2F2\"  |Multiplying thru by 2r so as all denominators = 1
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document.write( "    180 + 360 = 8r
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document.write( "         67.5mph = r
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document.write( "67.5mph and 38.75mph \n" );
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