document.write( "Question 458982: The perimeter of a rectangle with length, l and width, w is given by P = 2w + 2l. If the perimeter of a certain rectangle is 78 centimeters and the width is 12 centimeters, what is the length? Please show all of your work. \n" ); document.write( "
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The perimeter of a rectangle with length, l and width, w is given by P = 2w + 2l. If the perimeter of a certain rectangle is 78 centimeters and the width is 12 centimeters, what is the length? Please show all of your work.
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\n" ); document.write( "The problem gives you:
\n" ); document.write( "w = 12 cm
\n" ); document.write( "P = 78 cm
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\n" ); document.write( "plug into and solve for L:
\n" ); document.write( "P = 2w + 2L
\n" ); document.write( "78 = 2(12) + 2L
\n" ); document.write( "78 = 24 + 2L
\n" ); document.write( "54 = 2L
\n" ); document.write( "27 cm = L (length)
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