document.write( "Question 1128052: The area of a rectangle is 338 mm2. The height is thirteen less than three times the base. What is the perimeter? \n" ); document.write( "

Algebra.Com's Answer #744611 by ikleyn(52787) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "x*(3x - 13) = 338\r\n" );
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document.write( "3x^2 - 13x - 338 = 0\r\n" );
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document.write( " =  = .\r\n" );
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document.write( "Only positive root is meaningful:  x =  = 13.\r\n" );
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document.write( "Thus the width is 13 mm;  the length is  13*3 - 13 = 26 mm.\r\n" );
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document.write( "The perimeter = 13 + 26 + 13 + 26 = 78 mm.     ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "My understanding is that not only an answer does matter - the solution (I mean the correct and correctly presented solution) does matter, too.\r
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\n" ); document.write( "\n" ); document.write( "It is why I wrote this post after the post by @Mtrkcrc.\r
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