Answer:
x=7 and y=-1
Step-by-step explanation:
X+Y=6 OR X=6-Y ...(1)
X-Y=8 ...(2)
substitue X=6-Y in (2)
(6-Y)-Y=8
6-2Y=8
-2Y=8-6
-2Y=2
Y=2/-2\Y=-1 ANS.
for x, substitute Y=-1 in (1) above
X-(-1)=8
X=8-1
X=7 ANS.
A
Each guest pays 15 dollars and the fee is 200, so 15x+200 because adding to the cost.
1. 7.4%
2. 3/10
3. 0.42
4. <u>Not Sure</u>
5. 212.8
6. 2,900
2pier is the formula for circumference