document.write( "Question 1171646: simon is now 4 times as old as his son 5 years ago.Simon was exactly one and half times as old as his son will be 10 years from now .Determine Simon's present age?? \n" ); document.write( "

Algebra.Com's Answer #796552 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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S = Simon's present age
\n" ); document.write( "s = son's present age
\n" ); document.write( "Write an equation for each statement
\n" ); document.write( ":
\n" ); document.write( "Simon is now 4 times as old as his son 5 years ago.
\n" ); document.write( "S = 4(s-5)
\n" ); document.write( "S = 4s - 20
\n" ); document.write( "Simon is exactly one and half times as old as his son will be 10 years from now
\n" ); document.write( "S = 1.5(s+10)
\n" ); document.write( "S = 1.5s + 15
\n" ); document.write( "Replace S with (4s-20)
\n" ); document.write( "4s - 20 = 1.5s + 15
\n" ); document.write( "4s - 1.5s = 15 + 20
\n" ); document.write( "2.5s = 35
\n" ); document.write( "s = 35/2.5
\n" ); document.write( "s = 14 yrs is son's age
\n" ); document.write( ":
\n" ); document.write( "Determine Simon's present age??
\n" ); document.write( "S = 4(14-5)
\n" ); document.write( "S = 4(9)
\n" ); document.write( "S = 36 yrs is Simon's age
\n" ); document.write( ":
\n" ); document.write( "Check in the 2nd equation
\n" ); document.write( "S = 1.5(14+10)
\n" ); document.write( "S = 1.5(24)
\n" ); document.write( "S = 36 \n" ); document.write( "

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