document.write( "Question 290664: Compute the dimensions of a rectangular flower garden with a perimeter of 250m and with length that exceeds three times its width by 5. pls help. :( \n" ); document.write( "

Algebra.Com's Answer #210319 by blwinbbbles(106) $\"\"$ $\"About$

You can put this solution on YOUR website!
OK start with what you know: Use l for length and w for width
\n" ); document.write( "perimeter is the outside distance around the rectangle\r
\n" ); document.write( "\n" ); document.write( "So:\r
\n" ); document.write( "\n" ); document.write( "Since there are 2 lengths and 2 widths on a rectangle then
\n" ); document.write( "2w + 2l = 250
\n" ); document.write( "and we know that length is 5 more than 3 times the width
\n" ); document.write( "so: l = 3w +5\r
\n" ); document.write( "\n" ); document.write( "Now use substitution:\r
\n" ); document.write( "\n" ); document.write( "2w + 2(3w + 5) = 250
\n" ); document.write( "solve:\r
\n" ); document.write( "\n" ); document.write( "2w + 6w + 10 = 250 subtract 10 from both sides and add the w's together
\n" ); document.write( "8w = 240 divide by 8
\n" ); document.write( "w = 30\r
\n" ); document.write( "\n" ); document.write( "so if w = 30 then length is l = 3W + 5
\n" ); document.write( "l = 3(30) + 5
\n" ); document.write( "l = 90 +5
\n" ); document.write( "l = 95\r
\n" ); document.write( "\n" ); document.write( "So your answer is width is 30m and length is 95m\r
\n" ); document.write( "\n" ); document.write( "Hope this helps \n" ); document.write( "

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