document.write( "Question 360461: Marcie can walk 8 miles in the same time Frank can walk 6 miles. If Marcie walks 1 mile per hour faster than Frank, then how fast does each person walk? \n" ); document.write( "

Algebra.Com's Answer #257191 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "Let x represent Frank's mph.  then Marcie's would be (x+1)mph
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document.write( "d = rt
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document.write( "write as we read***
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document.write( "6 = xt     Or t = 6/x
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document.write( "8 = (x+1)t 0r t = 8/(x+1)
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document.write( "6/x = 8/(x+1)
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document.write( "cross multiply to solve
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document.write( "8x = 6(x+1)
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document.write( "8x = 6x + 6
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document.write( "2x = 6
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document.write( "x = 3mpr
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document.write( "Franks walks 3mpr and Marcie walks 4mph\r
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document.write( "checking our answer
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document.write( "6mi/3mph = 8mi/4mph \n" );
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