document.write( "Question 177250: Ty is one-third as old as his father.Five years ago his father was four times as old as Ty.How old is each now? \n" ); document.write( "

Algebra.Com's Answer #132337 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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Ty is one-third as old as his father.Five years ago his father was four times as old as Ty.How old is each now?
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\n" ); document.write( "let f = fathers age noe
\n" ); document.write( "let t = Ty's age now
\n" ); document.write( ":
\n" ); document.write( "write an equation for each statement:
\n" ); document.write( "\"Ty is one-third as old as his father.\"
\n" ); document.write( "f = 3t
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\n" ); document.write( "f - 5 = 4(t-5)
\n" ); document.write( "f-5 = 4t - 20
\n" ); document.write( "f = 4t - 20 + 5
\n" ); document.write( "f = 4t - 15
\n" ); document.write( ":
\n" ); document.write( "How old is each now?
\n" ); document.write( "Substitute 3t for f in the above eq
\n" ); document.write( "3t = 4t - 15
\n" ); document.write( "3t - 4t = -15
\n" ); document.write( "-t = -15
\n" ); document.write( "t = 15 yrs is Ty's present age
\n" ); document.write( "then
\n" ); document.write( "3 * 15 = 45 yrs is father's present age
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Check solution in the statement:
\n" ); document.write( "\"Five years ago his father was four times as old as Ty.\"
\n" ); document.write( "45 - 5 = 4(15 - 5) \n" ); document.write( "

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