The sum of the equation is 21
Answer:
it has to be negative because it's below sea level so it's -20
z
≤
11
Explanation:
Perform the necessary mathematics to isolate and solve for
z
while keeping the inequality balanced:
First, expand the terms within parentheis:
16
≥
(
4
⋅
z
)
−
(
4
⋅
7
)
16
≥
4
z
−
28
Next, add 28 to both sides of the inequality:
16
+
28
≥
4
z
−
28
+
28
44
≥
4
z
−
0
44
≥
4
z
Then, divide each side of the inequality by 4:
44
4
≥
4
z
4
11
≥
(
4
4
)
z
11
≥
1
z
11
≥
z
Finally, "flip" the inequality to put the answer in terms of
z
z
≤
11 theres that
Answer:
6
Step-by-step explanation:
siri=6x-10
alexa= 50-4x
im making a table which is an easy way to tell or you can guess and check
X S A
--------------------
2 | 2 |42
3 | 8 |38
4 | 14 |34
5 | 20 |30
6 | 26 |26