document.write( "Question 1029036: A picture is 4cm by 6cm. it is pasted onto a matter of equal width on all sides. What is the width of the matte if the area of the matte is 3 times as great as the area of the picture? \n" ); document.write( "

Algebra.Com's Answer #644134 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "A picture is 4cm by 6cm. it is pasted onto a matte of equal width on all sides. What is the width of the matte
\n" ); document.write( "if the area of the matte is 3 times as great as the area of the picture?
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document.write( "Your guiding equation is\r\n" );
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document.write( "(2x+4)*(2x+6) = 3*4*6,   or\r\n" );
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document.write( "(2x+4)*(2x+6) = 72,\r\n" );
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document.write( " = ,\r\n" );
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document.write( " = ,\r\n" );
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document.write( " = .\r\n" );
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document.write( "Use the quadratic formula and get\r\n" );
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document.write( "x = .\r\n" );
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