document.write( "Question 1082166: Find two real numbers x and y such that 2x+y=80 and A=xy is maximum \n" ); document.write( "

Algebra.Com's Answer #696245 by josgarithmetic(39617) $\"\"$ $\"About$

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$\"A=x%2880-2x%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"A=80x-2x%5E2\"$ \r
\n" ); document.write( "\n" ); document.write( "Maximum at $\"80-4x=0\"$ ;
\n" ); document.write( " $\"4x=80\"$
\n" ); document.write( " $\"x=20\"$ and $\"y=40\"$ \n" ); document.write( "

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