Here is how to solve this question.
Since x represents children and y represents adults.
1,000 = (6x+8y) - 200
6x + 8y = 1,000 + 200
6x + 8y = 1,200
1,000 = 8y - 200
1,000 + 200 = 8y
1,200 = 8y
1,200/8 = 8y/8
150 = y
150 adults need to attend for the organizers to raise the targeted amount.
Happy studying ^-^
3 terms
The 2x, 3y, and -4z
Answer:

Step-by-step explanation:
Given
![6\ [\ ]\ (\ 3\ [\ ]\ 1\ )\ [\ ]\ 5\ [\ ]\ 1\ =\ 17](https://tex.z-dn.net/?f=6%5C%20%5B%5C%20%5D%5C%20%28%5C%203%5C%20%5B%5C%20%5D%5C%201%5C%20%29%5C%20%5B%5C%20%5D%5C%205%5C%20%5B%5C%20%5D%5C%201%5C%20%3D%5C%2017)
Required
Fill in the box with +,-, x, and ⌯ (once each)
This question is solved using trial by error approach.
After some tests, the solution that matches the equation is:

$20.00 - 15.24 = 4.76
4.76 Is the change liz get back from a twenty dollar bill.
$220.87 , (it would be $220.88 if you have to round up though