Tuesday

September 2, 2014

September 2, 2014

Posted by **steven** on Sunday, July 12, 2009 at 10:57am.

- math -
**Marth**, Sunday, July 12, 2009 at 11:10amlet x = the width of the border

The combined area of the picture with the border = (100+x)(55+x)

(100 + x)(55 + x) = 9796

5500 + 155x + x^2 = 9796

-4296 + 155x + x^2 = 0

Now, use the quadratic equation to find x.

x = (-b +/- sqrt(b^2 - 4ac))/2a

With these numbers, I assume a calculator is allowed.

x = 24, -179

The width of the border cannot be negative, so x = 24cm.

**Answer this Question**

**Related Questions**

math - Sue wants to frame a picture with a matte of uniform width all around the...

Math - A framer at a photo gallery wants to frame a print with a matte of ...

Math Geometry - Marisol is painting on a piece of canvas that has an area of ...

Math - A square mirror has sides measuring 2 ft. less than the sides of a square...

Math - Hello there! Could You please help me with this Geometry word problem? ...

Math - Hello there! Could You please help me with this Geometry word problem? ...

Math Geometry - Marisol is painting on a piece of canvas that has an area of ...

Algebra II - A picture is four inches wide and six inches long. It has an ...

math - a painting is 3 inches longer than it is wide. it is set in a rectangular...

home work - A framed picture has length 50 cm and width 40 cm . The picture ...