So 119 out of 250 people had a pool in their backyard...119/250 = 47.6%
so out of 10,000 people, expected value of ones with a pool is :
47.6% of 10,000 ...
0.476 * 10,000 = 4760 people <===
. . (x + 1) . . . . . . (x² + 5x + 4)
---------------- ÷ -------------------- =
(x² + x − 6) . . . . . (x − 2)
. . (x + 1) . . . . . . . (x + 4)(x + 1)
------------------- ÷ -------------------- =
(x + 3) (x − 2) . . . . . (x − 2)
. . (x + 1) . . . . . . . . . (x − 2)
------------------- * -------------------- =
(x + 3) (x − 2) . . . (x + 4)(x + 1)
. . 1 . . . . . . 1
--------- * ---------- =
(x + 3) . (x + 4)
. . . . . 1
------------------- =
(x + 3) (x + 4)
. . . . 1
-----------------
x² + 7x + 12
2P + 2 + 3P + 6 > 2
5P + 8 > 2
Subtract 8 from both sides.
5P > -6
Divide each side by 5.
P > -6/5
Answer:
so there is 8 slice left
Step-by-step explanation:
We have
<span>−4x−y=8
y=3x−1
</span>
using a graph tool
see the attached figure
the solution is the point (-1,-4)