document.write( "Question 145324: Western State College is 18 years older than Southern State. Western is also 2 1/2 times as old as Southern State. How old is eac? \n" ); document.write( "

Algebra.Com's Answer #105999 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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Write an equation for each statement:
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\n" ); document.write( "\"Western State College is 18 years older than Southern State.\"
\n" ); document.write( "w = s + 18
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\n" ); document.write( " \"Western is also 2 1/2 times as old as Southern State.\"
\n" ); document.write( "w = 2.5s
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\n" ); document.write( " How old is each?
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\n" ); document.write( "Substitute (s+18) for w in the 2nd equation, find s:
\n" ); document.write( "s + 18 = 2.5s
\n" ); document.write( ":
\n" ); document.write( "18 = 2.5s - s
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\n" ); document.write( "18 = 1.5s
\n" ); document.write( "s = $\"18%2F1.5\"$
\n" ); document.write( "s = 12 yr is S.States age
\n" ); document.write( "then
\n" ); document.write( "2.5(12) = 30 yrs is W's age
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