Thursday

April 24, 2014

April 24, 2014

Posted by **amanda** on Saturday, May 12, 2012 at 10:29pm.

- math -
**drwls**, Sunday, May 13, 2012 at 6:41amLet x = margin width.

(18 - 2x)(22 - 2x) = 96

396 - 80x +4x^2 = 96

300 -80x +4x^2 = 0

x^2 -20x + 75 = 0

(x-15)(x-5) = 0

x = 5 cm is the only margin width that results in positive length and width of the printed area.

**Related Questions**

algebra 2 - the printed matter on a 10 by 16 centimeter page of a book must ...

algebra - the printed matter on a 10 by 16 centimeter page of a book must cover ...

7th grade math - What feature of a cylinder uses the given units? a. centimeter ...

Geometry - Find the area (in square centimeters) of a triangular piece of cloth ...

Geometry - Find the area (in square centimeters) of a triangular piece of cloth ...

math - bill stacks a 5-centimeter square on top of a 2-centimeter by 20-...

calculus - A format for textbook page layouts is to be chosen so that each ...

Math 8R - Help!!!!!!!!!!!!!!!!!!! - 14. Subtract -5 from -14 -14 - (-5) 16. ...

Math - Another equivalent equation. -8w + 18 > -22 So, I subtract 18 from ...

math - what is the meidan of: 1,6,6, 7, 7,16, 18, 18,22,22