For this case we can make the following rule of three:
4543 -----------> 423970 km ^ 2
x ----------------> 250 km ^ 2
Clearing x we have:
x = (250/423970) * (4543)
x = 2.678845201
Answer:
the population density of mountain lions per 250 kmsquared2 in California is:
x = 2.678845201
nearest whole numberx = 3
25x² - 36 = 0
25x² - 30x + 30x - 36 = 0
5x(5x) - 5x(6) + 6(5x) - 6(6) = 0
5x(5x - 6) + 6(5x - 6) = 0
(5x + 6)(5x - 6) = 0
5x + 6 = 0 or 5x - 6 = 0
- 6 - 6 + 6 + 6
5x = -6 5x = 6
5 5 5 5
x = -1.2 x = 1.2
Answer:
6x + 6y just add all the 2x then 2y
The answer for 25 is y=3x+1
The answer for 24 is y=3x+5
400 divided by 20 = 20
P.S. im just writing this because this is the thing we r supposed to write to complete more than 20 words so
u like the picture