Answer:
1st one
Step-by-step explanation:
Answer:
12 days
Step-by-step explanation:
Trust me I did the work.
X= adults
y=children
x+y=20
x=20-y
18x+12y=324
18(20-y)+12y=324
360-18y+12y=324
-6y=324-360
-6y=-36
y=-36/-6
y=6
x=20-y
x=20-6
x=14
14 adults and 6 children
To find the midpoint, you are basically finding the average (or mean) between the two coordinates, J and N.
Start by finding the average between the x coordinates of J and N: 10 and -4. Add them together then divide the total by 2.
10 + (-4) = 6; 6/2 = 3
The average of the x coordinates is 3. Now find the average of the y coordinates. Start by adding -2 and 6 together then dividing the total by 2.
-2 + 6 = 4; 4/2 = 2
3 is the average of the x coordinates and 2 is the average of the y coordinates, so that means the midpoint of J and N must be (3, 2).
