document.write( "Question 571517: Cecile is now four times as old as daisy . Five years ago , the sum of their two ages was 45 . How old each now? \n" ); document.write( "

Algebra.Com's Answer #368093 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+c+\"$ = Cecile's age now
\n" ); document.write( " $\"+d+\"$ = Daisy's age now
\n" ); document.write( " $\"+c+-+5+\"$ = Cecile's age 5 yrs ago
\n" ); document.write( " $\"+d+-+5+\"$ = Daisy's age 5 yrs ago
\n" ); document.write( "-------------
\n" ); document.write( "given:
\n" ); document.write( "(1) $\"+c+=+4d+\"$
\n" ); document.write( "(2) $\"+%28+c+-+5+%29+%2B+%28+d+-+5+%29+=+45+\"$
\n" ); document.write( "Substitute (1) into (2)
\n" ); document.write( "(2) $\"+4d+-+5+%2B+d+-+5+=+45+\"$
\n" ); document.write( "(2) $\"+5d+-+10+=+45+\"$
\n" ); document.write( "(2) $\"+5d+=+55+\"$
\n" ); document.write( "(2) $\"+d+=+11+\"$
\n" ); document.write( "and, since
\n" ); document.write( "(1) $\"+c+=+4d+\"$
\n" ); document.write( "(1) $\"+c+=+4%2A11+\"$
\n" ); document.write( "(1) $\"+c+=+44+\"$
\n" ); document.write( "Cecile is 44 and Daisy is 11
\n" ); document.write( "check:
\n" ); document.write( "(2) $\"+%28+44+-+5+%29+%2B+%28+11+-+5+%29+=+45+\"$
\n" ); document.write( "(2) $\"+39+%2B+6+=+45+\"$
\n" ); document.write( "(2) $\"+45+=+45+\"$
\n" ); document.write( "OK\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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