2L + 2W = 36
W = 2L - 6
Plug this information in:
2L + 2(2L - 6) = 36
2L + 4L - 12 = 36
6L - 12 = 36
6L = 48
L = 8
Plug L in to solve for W:
W = 2(8) - 6
W = 16 - 6
W = 10
Answer:
Restate the question
Step-by-step explanation:
10
it is 10 2000÷10=200
X ≥9 years after 2009.
Y=4x+4
Y-4=4x
X=(Y-4)/4
Y=number of U.S. households, in millions.
Y≥40
Y-4≥36
(Y-4)/4≥9
So, X≥9.