Lets set up the relationship of the length to width:
l = 3w
Using this, we can make all the variables the same by substitution:
2l + 2w = perimeter
2l + 2w = 72
2(3w) + 2w = 72
6w + 2w = 72
8w = 72
w = 9
The width is 9, to the length must be 9*3, or 27.
Hope this helped!
Answer:

Step-by-step explanation:
Given

--- (not clear but that is what I'm able to read)

Required
Find x
From the attachment, the corresponding angles of both triangles are equal:
This implies that:



Apply angle sums property

This becomes

Collect like terms



Answer:
Y = 0.09X1 - 167.40
Step-by-step explanation:
Year (X) : 2000, 2004, 2006, 2007, 20008
Population (millions) (Y) : 7.08, 7.48, 7.64, 7.71, 7.77
Using technology, the regression model obtained is :
Y = 0.09X1 - 167.40
With a slope of 0.09 and intercept of - 167.40
294608 - 184130 = 110478
110478/184130 = 0.6
0.6 * 100 = 60
60% increase
Answer:
C. 22x
Step-by-step explanation:
7x+15x=22x