document.write( "Question 193743: Dorothy is 6 years older than Ricardo. The product of their present ages is twice what the product of their ages was 6 years ago. how old is Dorothy?
\n" ); document.write( "I have trued to find something similar in the section of word problem and just totally confused myself- HELP PLEASE! \n" ); document.write( "

Algebra.Com's Answer #145425 by stanbon(75887) $\"\"$ $\"About$

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Dorothy is 6 years older than Ricardo. The product of their present ages is twice what the product of their ages was 6 years ago. how old is Dorothy?
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\n" ); document.write( "NOW DATA:
\n" ); document.write( "Ricardo's age is x ; Dorothy's age is x+6
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\n" ); document.write( "6 Yrs. ago DATA:
\n" ); document.write( "Ricardo was x-6 ; Dorothy was x
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\n" ); document.write( "Equation:
\n" ); document.write( "x(x+6) = 2(x(x-6))
\n" ); document.write( "x^2 + 6x = 2(x^2-6x)
\n" ); document.write( "x^2 + 6x = 2x^2 -12x
\n" ); document.write( "x^2 -18x = 0
\n" ); document.write( "x(x-18) = 0
\n" ); document.write( "x = 0 or x = 18
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\n" ); document.write( "Realistic answer: x = 18 (Ricardo's age NOW)
\n" ); document.write( "x+6 = 24 (Dorothy's age NOW)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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