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Sonja [21]
3 years ago
10

Item 12 a rectangular room is 10 feet longer than it is wide. one-foot-by-one-foot tiles cover the entire floor. let ww represen

t the width (in feet) of the room. write an expression in simplest form that represents the number of tiles along the outside of the room.
Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
6 0

Given:

Rectangular room is 10 feet; and

1 x 1 ft tiles

 

The expression for this problem would be:

If we know that the width is w, while the length is w + 10, therefore the perimeter is 2w + 2 (w + 10), so you need 4w + 20 - 4, or 4w + 16 tiles. Since you do not want to count the corners, twice.


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