document.write( "Question 471156: Robert is now twice as old as Marie. Six years ago the sum of their ages was thirty-nine. How old are they each now? \n" ); document.write( "

Algebra.Com's Answer #323160 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "Robert is now twice as old as Marie
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document.write( "Let x and 2x represent Marie's and Robert's ages NOW
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document.write( "Question states*** 6 yrs ago...
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document.write( " (x-6) + (2x-6) = 39
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document.write( "Solving for x
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document.write( "           3x = 51
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document.write( "            x = 17, Marie's age now.  Robert is 34  (2*17)
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document.write( "CHECKING our Answer***
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document.write( "   11 + 28 = 39\r
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document.write( "One side of a triangle is three times the shortest side. 
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document.write( "The third side is 6 inches more than the shortest side. 
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document.write( "Let x, 3x and (x+6) represent the three sides
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document.write( "Question states*** The perimeter of the triangle is 86 inches
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document.write( "  x + 3x + (x+6) = 86in
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document.write( "        5x = 80in
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document.write( "         x = 16in.  Sides are 16in, 48in, 22in  (added up = 86in :)
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