document.write( "Question 401396: Marie is one-ninth as old as her mother. In 3 years, she will be one-fifth as old as her mother will be then. Find their present ages. \n" ); document.write( "

Algebra.Com's Answer #284070 by Tatiana_Stebko(1539) $\"\"$ $\"About$

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If Mary now is $\"x\"$ years old, then her mom is $\"9x\"$ years old
\n" ); document.write( "In 3 years Mary will be $\"%28x%2B3%29\"$ years old, then her mom will be $\"5%28x%2B3%29\"$ years old
\n" ); document.write( "If now mom is $\"9x\"$ years old, then in 3 year she will $\"9x%2B3\"$ years old
\n" ); document.write( "Equation
\n" ); document.write( " $\"5%28x%2B3%29=9x%2B3\"$
\n" ); document.write( " $\"5x%2B15=9x%2B3\"$
\n" ); document.write( " $\"5x-9x=3-15\"$
\n" ); document.write( " $\"-4x=-12\"$
\n" ); document.write( " $\"x=%28-12%29%2F%28-4%29\"$
\n" ); document.write( " $\"x=3\"$
\n" ); document.write( "Mary now is 3 years old, her mom now is $\"9%2A3=27\"$ years old
\n" ); document.write( "Answer: 3 and 27 \n" ); document.write( "

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