Posted by maya on Monday, March 7, 2011 at 6:01pm.
the floor of a room is a rectangle. it has a perimeter of 22m and an area of 24 square meters.
what are the length and width of the room?

math  Reiny, Monday, March 7, 2011 at 6:06pm
length  x
width  y
x+y = 11 or y = 11x
xy = 24
x(11x) = 24
x^2  11x + 24 = 0
(x3)(x8) = 0
x = 3 or x = 8
if x=3, y = 8
if x = 8, y = 3
the room is 3 by 8

math  Ms. Sue, Monday, March 7, 2011 at 6:07pm
This must be a closet.
The factors of 24:
3 * 8
4 * 6
2 * 12
Which of those dimensions would give a perimeter of 22 m?

math  maya, Monday, March 7, 2011 at 6:15pm
im in grade 4 i don't know what that is

math  Ms. Sue, Monday, March 7, 2011 at 6:16pm
Perimeter = 2 times length plus 2 times width

math  maya, Monday, March 7, 2011 at 6:17pm
rieny that doesent make sense it cant be.

math  Reiny, Monday, March 7, 2011 at 6:17pm
Maya, if you only in grade 4, then forget about my solution.
Go with what Ms Sue has shown you.
the room is 3 metres by 8 metres
check : 3+8 + 3+8 = 22
3x8 = 24

math  maya, Monday, March 7, 2011 at 6:21pm
wow thanks rieny :)
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