document.write( "Question 1196818: The perimeter of a rectangle garden is 72 feet. Its length is 3 times the width. Find the length and width of the garden. \n" ); document.write( "

Algebra.Com's Answer #829818 by MathLover1(20850) $\"\"$ $\"About$

You can put this solution on YOUR website!
\r
\n" ); document.write( "\n" ); document.write( "The perimeter of a rectangle garden is $\"72\"$ feet, so\r
\n" ); document.write( "\n" ); document.write( " $\"2%28l%2Bw%29=72\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"l%2Bw=72%2F2\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"l%2Bw=36\"$ ...........eq.1\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " if its length is $\"3\"$ times the width, we have\r
\n" ); document.write( "\n" ); document.write( " $\"l=3w\"$ .........eq.2\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "substitute $\"l\"$ in eq.1\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"3w%2Bw=36\"$ ...........eq.1\r
\n" ); document.write( "\n" ); document.write( " $\"4w=36\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"w=9\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "go to\r
\n" ); document.write( "\n" ); document.write( " $\"l=3w\"$ .........eq.2, substitute $\"w\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"l=3%2A9\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"l=27\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "answer: the length of the garden is $\"27\"$ and width is $\"9\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );