A poster is to have an area of $660$ cm$2$ with $2\mathrm{.}5$ cm margins at the bottom and sides and a $5$ cm margin at the top. Find the exact dimensions $($in cm$)$ that will give the largest printed area.

Answer rating: 100% (QA)

Step 1 Let x and y be the length and height of the poster then xy 660 y 660 X ... View the full answer