document.write( "Question 441332: find the age of john and mary if four times jonhs age equals three times marys age, and mary is ten years older than john. \n" ); document.write( "
Algebra.Com's Answer #304660 by jorel1380(3719)\"\" \"About 
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M=J+10
\n" ); document.write( "3M=4J
\n" ); document.write( "3(J+10)=4J
\n" ); document.write( "3J+30=4J
\n" ); document.write( "J=30
\n" ); document.write( "M=40
\n" ); document.write( "John is 30. Mary is 40..
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