document.write( "Question 824150: The area of a rectangular room is 399 sq. ft.
\n" ); document.write( "Its length is 5.3 ft greater than its width.
\n" ); document.write( "Find the dimensions of the room. \n" ); document.write( "
Algebra.Com's Answer #496123 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "x = y + 5.3
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\n" ); document.write( "xy = 399
\n" ); document.write( "(y + 5.3)y = 399
\n" ); document.write( "yy + 5.3y - 399 = 0
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\n" ); document.write( "the above quadratic equation is in standard form, with a=1, b=5.3, and c=-399
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\n" ); document.write( "to solve the quadratic equation, by using the quadratic formula, copy and paste this:
\n" ); document.write( "1 5.3 -399
\n" ); document.write( "into this solver: https://sooeet.com/math/quadratic-equation-solver.php
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\n" ); document.write( "this quadratic has two real roots (the x-intercepts), which are:
\n" ); document.write( "y = 17.5
\n" ); document.write( "y = -22.8
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\n" ); document.write( "negative length doesn't make sense for this problem, so use the positive root:
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\n" ); document.write( "answer:
\n" ); document.write( "y = width = 17.5 ft
\n" ); document.write( "x = length = 22.8 ft
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\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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