If the average of 12 numbers is 14 and the average of 4 of those numbers is 18, what is the average of the other eight numbers?
1 answer:
(8 + X + Y)/3 = 12
multiply both sides of the equation by 3 to get 8 + X + Y = 36
subtract 8 from both sides of the equation to get X + Y = 28
So, the sum of the 2 missing numbers is 28
You might be interested in
Answer:
x=23°
Step-by-step explanation:
93°+(3x+18)°=180°
93°+3x+18°=180°
111°+3x=180°
3x=180°-111°
3x=69°
x=69°:3
x=23°
Answer:
a
Step-by-step explanation:
because I just think its a
Answer:
y = 2/3x+1/3
Step-by-step explanation:
2x−3y+1 = 0
Solve for y
Add 3y to each side
2x−3y+1 +3y= 0+3y
2x +1 = 3y
Divide by 3
2/3 x + 1/3 =3y/3
2/3x +1/3 = y
The slope is 2/3 and the y intercept is 1/3
y = 2/3x+1/3
Step-by-step explanation:
Given
If x = 4 Then
3x + 1 = 3 * 4 +1 = 12 + 1 = 13
The answer should be 13.
The nth term is 6n^2-11n+16
