document.write( "Question 886855: Mang Juan owns a rectangular lot. The perimeter of the lot is 90 m and its area is 450 m^2. What equation represent the perimeter of the lot? How about the equation that represents its area? \n" ); document.write( "
Algebra.Com's Answer #536198 by josgarithmetic(39617)\"\" \"About 
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Dimensions x and y.\r
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\n" ); document.write( "\n" ); document.write( "2x+2y=90 and xy=450. Also, the coefficients and constant in the perimeter equation all EVEN so that can be simplified as x+y=45. The \"90\" equation is really the one for calculating the perimeter. \r
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\n" ); document.write( "\n" ); document.write( "You can solve the system through solving for either x or y from perimeter equation and substitute into the area equation.
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