Monday
March 30, 2015

Homework Help: math

Posted by Marty on Wednesday, May 23, 2007 at 7:38pm.

Sue wants to frame a picture with a matte of uniform width all around the print. Sue wants the area of the matte to equal the area of the picture. If the print measures 60cm by 40cm how wide should the matte be?

let the width of the uniform matte be x cm
We know the area of the picture is 60*40 or 2400 cm^2

The width of the whole frame would be 40+2x and the height would be 60+2x

since the area of the picture is equal to the area of the matte, the area of the whole thing is twice the area of the picture, so....
(40+2x)(60+2x) = 2(2400)

expand and solve that quadratic.
One of your answers will be extraneous, that is, it will make no sense for your picture. (hint: I got 10 cm for the width of the matte)

thank you SO much!!!! this helped me sooo much

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Math - A framer at a photo gallery wants to frame a print with a matte of ...
math - A painting measuring 100cm by 55cm is to be framed with a matte border of...
Math, please help - A matte of uniform width is to be placed around a painting ...
please help, math question - A matte of uniform width is to be placed around a ...
Math - a picture 8 in. by 12 in. is placed in a frame which has a uniform width...
home work - A framed picture has length 50 cm and width 40 cm . The picture ...
math - a picture 8 in. by 12 in. is placed in a frame which has uniform width. ...
math - hw help - A rectangular picture is 3cm longer than its width, (x+3). A ...
Algebra - A rectangular picture is 4 inches longer than it is wide. The picture ...
calculus - What size should be the frame be? Suppose an artist has a circular ...

Members