Write the system of equation based on the problem
"A total of 345 tickets that consists of adult tickets and students ticket were sold" could be written as:
∴ a + s = 345 <em>(first equation)</em>
"<span>the number of student tickets sold was two times the number of adult tickets sold" could be written as:
</span>∴ s = 2a <em>(second equation)</em>
<span>
Solve the system of equation
Substitute 2a as s in the first equation
a + s = 345
a + (2a) = 345
3a = 345
a = 345/3
a = 115
There are 115 adult tickets sold.</span>
Answer:
Vertical
Step-by-step explanation:
We can see that the line is parallel to the y-axis. This is an indicator that the line is vertical.
On the other hand, if the line was parallel to the x=axis, it would indicate that it is horizontal.
I hope this helps!
Answer:
69
Step-by-step explanation:
Here, we are interested in getting the median of the distribution
Mathematically, if we are talking about a moral distribution, we have equal values for median, mode and mean
Hence the median in this case will be 69
Answer:
B. 1 and -2
Explanation:
First, add up the equations:
x-x+3y+y=4
4y=4
y=1
Now, plug y into any of the original equations above and solve for x:
-x+1=3
-x=2
x=-2
Therefore, the answer is B. 1 and -2
