document.write( "Question 1024287: Maria's father is now twice as old as she is, 16 years ago he was four times as old. How old is each now? \n" ); document.write( "
Algebra.Com's Answer #639707 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Hi there, \n" ); document.write( "Maria's father is now twice as old as she is. \n" ); document.write( "F = 2M.........(1) \n" ); document.write( "16 years ago he was four times as old. \n" ); document.write( "F - 16 = 4(M - 16) \n" ); document.write( "F - 16 = 4M - 64......(2) \n" ); document.write( "Replace F in Eq(2) with 2M from Eq(1) \n" ); document.write( "2M - 16 = 4M - 64 \n" ); document.write( "Collect like terms: \n" ); document.write( "2M - 4M = - 64 + 16 \n" ); document.write( "-2M = -48 \n" ); document.write( "M = -48/-2 \n" ); document.write( "M = 24 \n" ); document.write( "Maria is 24 years old \n" ); document.write( "Father is 48 years old \n" ); document.write( "Hope this helps :-) \n" ); document.write( " |