Answer: x>-4
Step-by-step explanation: -9x+4< 40
-9x+4< 40
-4 -4
-9x<36
-9x/-9<36/-9
x=-4
0, 2, 4, 6 is because the rule it to add 2
1, 2,4,8 is a geometric sequence since the rule is to mutliply by 2
1,4,8, 13 is neither even though there is a pattern add 3, add 4 add 5 etc.
First, multiply the first equation by 2.
That turns the first equation into:
6x - 2y = 18
That way it can easily be added to the second equation:
6x - 2y = 16
x + 2y = 5
---------------
7x = 21
==========
As you can see, the y disappeared, which was the objective of this operation.
Now the equations can be solved easily:
7x = 21
x = 3
Insert x=3 in the original equation:
3*3 - y = 8
9 - y = 8
9 = 8 + y
y = 1
So the result is:
x = 3
y = 1
Answer:
168
Step-by-step explanation:
The first equation given as 
Where a is the number of adults and b is the number of students
<em>Since, the number of students are given as 82, we can plug 82 into b and then do algebra and solve for a (shown below):</em>
<em>
</em>
<em />
<em>Thus, </em><em>168 adult tickets were sold</em>
Well, I do not know if I read this correctly. Are these the answers?
-5 ≥ -7
-5 ≤ -7
-5 > -7
-5 < -7
-5 = -7
If so, then -5 > -7 is a true statement because -5 is greater than -7.
