document.write( "Question 861656: The length of rectangle is 5 more than the width. If the area is 20 square units. What are the dimension of the rectangle? \n" ); document.write( "
Algebra.Com's Answer #519153 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
Very typical question about rectangle. I will solve this completely in symbols, generally.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "L = length
\n" ); document.write( "w = width
\n" ); document.write( "k = a given constant.
\n" ); document.write( "p = perimeter, a given constant.\r
\n" ); document.write( "\n" ); document.write( "The description is as L=w+k, and perimeter, p is given.
\n" ); document.write( "This like the generalization, \"the length of the rectangle is k more than the width.\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Perimeter Equation:
\n" ); document.write( "\"2L%2B2w=p\"
\n" ); document.write( "\"2%28w%2Bk%29%2B2w=p\".
\n" ); document.write( "In general, p might or might not be a whole number, and it might or might not be an even number, so I will not immediately here divide both sides by 2.
\n" ); document.write( "\"2w%2B2k%2B2w=p\"
\n" ); document.write( "\"4w%2B2k=p\"
\n" ); document.write( "\"4w=p-2k\"
\n" ); document.write( "\"highlight%28w=%28p-2k%29%2F4%29\"
\n" ); document.write( "-
\n" ); document.write( "Use the formula for w to find the formula for L.
\n" ); document.write( "The description gave L=w+k, so now have \"L=%28p-2k%29%2F4%2Bk\", and depending on the kind of form in which you want, can become \"L=p%2F4-k%2F2%2Bk\"
\n" ); document.write( "\"L=p%2F4%2Bk-k%2F2\"
\n" ); document.write( "\"highlight%28L=p%2F4%2Bk%2F2%29\".\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Naturally, substitute the given values to compute the values for L and w.
\n" ); document.write( "
\n" );