document.write( "Question 603418: Please help, it's a Maths question for homework needed to be handed in tomorrow.
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document.write( "A man is 8 times as old as his son. In 5 years he will be only 4 times as old. How old is the son now? \r
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document.write( "Thanks in advance :) \n" );
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Algebra.Com's Answer #380720 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! \"A man is 8 times as old as his son\" ___ m = 8s\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "\"In 5 years he will be only 4 times as old\" ___ m + 5 = 4(s + 5)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "substituting the equivalent value of m from the 1st equation into the 2nd equation ___ (8s) + 5 = 4s + 20\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "4s = 15\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the answer is not a whole number, which probably means that the numbers in the question need to be changed \n" ); document.write( " |