Question 83796
The length of a rectangle is 2cm more than twice its width. If the perimeter of the rectangle is 52 cm, what are the dimensions of the rectangle? 
Length = 2 + w
Width = w
Perimeter = 2Length + 2Width
52 = 2(2 + w) + 2(w)
52 = 4 + 2w + 2w
48 = 4w
12 = w
Length = 14cm
Width = 12cm
What is the mean of these numbers?
1,6,10,11,12 
(1 + 6 + 10 + 11 + 12)/5 = (40)/5 = 8
How does this set get graphed?
3(x - 4) > 7x - 9
3x - 12 > 7x - 9
-3 > 4x
-3/4 > x
<===========(-3/4)--------(0)----------->
The sum of a number and -11 is 4. what is the number? 
-11 + 4 = -7