document.write( "Question 1140064: Amy is one third the age of her mother.\r
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document.write( " In 12 years time, Amy will be half the age of her mother.\r
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document.write( "How old is Amy’s mother? \n" );
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Algebra.Com's Answer #760522 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Amy is one third the age of her mother. \n" ); document.write( "a = \n" ); document.write( "or multiply equation by 3 \n" ); document.write( "m = 3a \n" ); document.write( "In 12 years time, Amy will be half the age of her mother. \n" ); document.write( "a + 12 = \n" ); document.write( "a + 12 = \n" ); document.write( "a = \n" ); document.write( "a = \n" ); document.write( "get rid of the fraction, multiply by 2 \n" ); document.write( "2a = m - 12 \n" ); document.write( "replace m with 3a (from the 1st statement) \n" ); document.write( "2a = 3a - 12 \n" ); document.write( "12 = 3a - 2a \n" ); document.write( "a = 12 yrs is Amy's age \n" ); document.write( ": \n" ); document.write( "How old is Amy’s mother? \n" ); document.write( "3*12 = 36 yrs is Mom's age \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "See if that checks out in the statement \n" ); document.write( "\"In 12 years time, Amy will be half the age of her mother.\" \n" ); document.write( "12 + 12 = \n" ); document.write( "24 = \n" ); document.write( " \n" ); document.write( " |