Answer:
The solution for this system is: 
Step-by-step explanation:
The problem states that we have to solve this system by the elimination method
In the elimination method, we transform the system in such a way that one variable can cancel each other. With this, we find the result of the other variable. Then, we can replace the variable we found in any of the equations, and we have the value of the variable that we had initially canceled.
In this problem, we have the following system:


If we add equations 1) and 2), the variable x is going to be eliminated





Now, we can replace the value of y in any of the equations, to find x:
I will replace in equation 2)





The solution for this system is: 
Answer:
, 4.23 , 9/2
Step-by-step explanation:

9/2 = 4.5
4.23
Step-by-step explanation:
x=volume of the glass
(1/3)x+63=(5/8)x
63=(5/8)x-(1/3)x
63=(15/24)x-(8/24)x
63=(7/24)x
multiply both sides by 24/7
(24/7)(63)=(24/7)(7/24)x
216=x
216 cm3 is the volume (answer)
1/3 of 216 is 72
72+63=135
135/216=0.625=5/8
Vertex is (7,-4) for answer.
Hope this helps. :)
1/3 of 30 is 10 because you dividing it by 3 and you would get 10.
Now 2/3 of 10 :
10/3=3.3 (2/3 so we have to multiply by 2) 3.3•2=6.6
6.6 has to be estimated because you can't have 6.6 people.
Your answer would be 6. Before I said 7 but you said I was incorrect so the only possibility left is 6.
Hoped I helped!