document.write( "Question 911916: My grandma is three times as old as I am. She was 60 when I was born. How old is she now? \n" ); document.write( "
Algebra.Com's Answer #553440 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! My grandma is three times as old as I am. She was 60 when I was born. How old is she now? \n" ); document.write( "-------------- \n" ); document.write( "The age difference will always be 60 years. \n" ); document.write( "3x as old --> a difference of 2x your age. \n" ); document.write( "2*age = 60 \n" ); document.write( "you're 30, she's 90 \n" ); document.write( "============= \n" ); document.write( "Or, \n" ); document.write( "G = Y + 60 \n" ); document.write( "G = 3Y \n" ); document.write( "--- \n" ); document.write( "3Y = Y + 60 \n" ); document.write( "2Y = 60 \n" ); document.write( "Y = 30 \n" ); document.write( "G = 90 \n" ); document.write( " \n" ); document.write( " |