document.write( "Question 201311: A father is 8 times as old as his son and 4 times as old as his daughter. If the daughter is 5 years older than the son;how old is each? \n" ); document.write( "
Algebra.Com's Answer #151533 by ptaylor(2198)![]() ![]() You can put this solution on YOUR website! Let x=son's age \n" ); document.write( "Then x+5=daughter's age \n" ); document.write( "8x=father's age \n" ); document.write( "Also 4(x+5)=father's age, so: \n" ); document.write( "8x=4(x+5) get rid of parens \n" ); document.write( "8x=4x+20 subtract 4x from each side \n" ); document.write( "8x-4x=4x-4x+20 \n" ); document.write( "4x=20 divide each side by 4 \n" ); document.write( "x=5--------------son's age \n" ); document.write( "x+5=5+5=10 daughter's age \n" ); document.write( "8x=8*5=40-----------father's age\r \n" ); document.write( "\n" ); document.write( "CK \n" ); document.write( "8*5=4(5+5) \n" ); document.write( "40=40\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Hope this helps----ptaylor \n" ); document.write( " |