document.write( "Question 821865: The length of a garden is 20 yards more than its width. The area is 399 square yards. What are the dimensions? This is on a worksheet but my teacher didn't yeah us how to do theis. Help? \n" ); document.write( "

Algebra.Com's Answer #494533 by TimothyLamb(4379) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "L = w + 20
\n" ); document.write( "Lw = 399
\n" ); document.write( "---
\n" ); document.write( "Lw = 399
\n" ); document.write( "(w + 20)w = 399
\n" ); document.write( "ww + 20w - 399 = 0
\n" ); document.write( "---
\n" ); document.write( "the above quadratic equation is in standard form, with a=1, b=20, and c=-399
\n" ); document.write( "---
\n" ); document.write( "to solve the quadratic equation, by using the quadratic formula, copy and paste this:
\n" ); document.write( "1 20 -399
\n" ); document.write( "into this solver: https://sooeet.com/math/quadratic-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "the two real roots (i.e. the two x-intercepts), of the quadratic are:
\n" ); document.write( "w = 12.3383079
\n" ); document.write( "w = -32.3383079
\n" ); document.write( "---
\n" ); document.write( "negative width doesn't make sense, so use the positive root
\n" ); document.write( "---
\n" ); document.write( "w = 12.3383079 yrd
\n" ); document.write( "L = 32.3383079 yrd
\n" ); document.write( "---
\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( "

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