document.write( "Question 1128904: In twenty years, Joseph will be four times older than he is today. What is his current age? \n" ); document.write( "
Algebra.Com's Answer #745412 by Quadratic1600(28)![]() ![]() You can put this solution on YOUR website! Hi\r \n" ); document.write( "\n" ); document.write( "To solve this type of question you have to form an equation - Creating the equation is the hard bit!!\r \n" ); document.write( "\n" ); document.write( "Lets say Joseph is X years old\r \n" ); document.write( "\n" ); document.write( "In 20 years time this will change to X + 20\r \n" ); document.write( "\n" ); document.write( "However we are also given other information \r \n" ); document.write( "\n" ); document.write( "In twenty years time Joseph will be 4 x as old as he is currently with would be 4X\r \n" ); document.write( "\n" ); document.write( "So from this we can say that \r \n" ); document.write( "\n" ); document.write( "X + 20 = 4X \n" ); document.write( "3X = 20 \n" ); document.write( "X = 20/3 ! (This seems an odd number)\r \n" ); document.write( "\n" ); document.write( "6 and 2/3 \r \n" ); document.write( "\n" ); document.write( "Lets check this answer\r \n" ); document.write( "\n" ); document.write( "(6 and 2/3) + 20 = 26 2/3 \n" ); document.write( "6 2/3 x 4 = 26 2/3\r \n" ); document.write( "\n" ); document.write( "These seem to work however the numbers seem very odd numbers for a question.\r \n" ); document.write( "\n" ); document.write( "Is there something extra or does this sort of answer fit with the context of what you are doing?\r \n" ); document.write( "\n" ); document.write( "Hope I have been of some help \n" ); document.write( " \n" ); document.write( " |