document.write( "Question 359034: I really need help trying to figure this out. I don't want an answer I just need help trying to get started. The problem is:
\n" );
document.write( " \"A rectangular plot is 1 meter longer that it is wide. The area of the plot is 72 square meters. Using the formula A=lw, find the length and width of the plot. Let w= the width of the plot.\"
\n" );
document.write( "I need help figuring out what A=lw means and esactly how to approach or start this math problem. I am usually pretty good at this, but for some reason my mind is stumped. \n" );
document.write( "
Algebra.Com's Answer #256212 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! \"A rectangular plot is 1 meter longer that it is wide. The area of the plot is 72 square meters. Using the formula A=lw, find the length and width of the plot. \n" ); document.write( "----------------- \n" ); document.write( "Let w be the width of the plot. \n" ); document.write( "Then w+1 is the length of the plot. \n" ); document.write( "----- \n" ); document.write( "Area = length*width \n" ); document.write( "72 = (w+1)w \n" ); document.write( "72 = w^2 + w \n" ); document.write( "w^2 + w - 72 = 0 \n" ); document.write( "---- \n" ); document.write( "Factor: \n" ); document.write( "(w+9)(w-8) = 0 \n" ); document.write( "--- \n" ); document.write( "Positive solution: \n" ); document.write( "w = 8 meters (width) \n" ); document.write( "w+1 = 9 meters (length) \n" ); document.write( "============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |