document.write( "Question 876286: Lisa can travel 28 miles in the same time that Kim travels 168 miles. If Lisa's speed is 15 mph faster than Kim's, find their rates. \n" ); document.write( "

Algebra.Com's Answer #528673 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "  | Cross Multiplying to solve
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document.write( "  228r - 168r = 168*15 = 2520
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document.write( "         60r = 2520
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document.write( "           r = 42mph,Kim's rate.  Lisa 57 mph
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