document.write( "Question 816639: the sum if the ages of cora and rose is 40. cora is 4 years older than rose. how old is cora? \n" ); document.write( "

Algebra.Com's Answer #491633 by TimothyLamb(4379) $\"\"$ $\"About$

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c + r = 40
\n" ); document.write( "c = r + 4
\n" ); document.write( "---
\n" ); document.write( "c + r = 40
\n" ); document.write( "r + 4 + r = 40
\n" ); document.write( "2r = 36
\n" ); document.write( "---
\n" ); document.write( "r = 18
\n" ); document.write( "c = 22
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