document.write( "Question 1194288: A mother is three times as old as her son. In 18 years time, she will be twice as old as her son. How old is she now? \n" ); document.write( "
Algebra.Com's Answer #826442 by ikleyn(52781)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "A mother is three times as old as her son. In 18 years time, she will be twice as old as her son. \n" ); document.write( "How old is she now? \n" ); document.write( "~~~~~~~~~~~~~~~\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( "Let x be the son age; then the mother age is 3x years.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "In 18 years\r\n" ); document.write( "\r\n" ); document.write( " 3x + 18 = 2(x+18).\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Simplify and find x\r\n" ); document.write( "\r\n" ); document.write( " 3x + 18 = 2x + 36\r\n" ); document.write( "\r\n" ); document.write( " 3x - 2x = 36 - 18\r\n" ); document.write( "\r\n" ); document.write( " x = 18.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Thus the son is 18 years old; hence, the mother is 3*18 = 54 years old. ANSWER\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( "Solved.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "---------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There are about one million solved age word problems of all possible different types in this site.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "See introductory lessons \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " - Age problems and their solutions\r \n" ); document.write( "\n" ); document.write( " - HOW TO algebreze and to solve age problems? \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Read them attentively and become an expert in this field.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |