A pic 16in by 20in is to be mounted on a piece of matboard, so that there is an even amount of mat all around . How wide will the boarder be if the area of the boarder is 352 square in?

Question

A pic 16in by 20in is to be mounted on a piece of matboard, so that there is an even amount of mat all around .  How wide will the boarder be if the area of the boarder is 352 square in?

apoorvk · Answer

let the exceeding width of the mat be x.
then the dimensions of the mat will be (16+x) and (20+x).    ...{'x' is added to both length and the breadth because the question states that there is an even amount of mat all around.}

so, then area of the mat = 352 = (16+x)(20+x).

solve and find 'x'.

jim_thompson5910 · Answer

does that make sense pleasecrystal?

anonymous · Answer

i dont know how to solve for x

jim_thompson5910 · Answer

oh wait, I misread the question.


The equation is not 352 = (16+x)(20+x)

apoorvk · Answer

multiply the binomial by binomial expression above
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