solve this answer by using substitution. set the first equation to x=-y+4 then substitute -y+4 for x in the second equation.
2(-y+4) + 3y=0
-2y+8 + 3y=0
y+8=0
y=-8
now use -8 and solve for x
x+(-8)=4
x=12
Answer: 18 males and 15 females
Step-by-step explanation: Good luck! :D
Answer:
volume = 684π m³ or 2148.85 m³
Step-by-step explanation:
volume = (π6² x 11) + (4/3π6³) = 396π + 288π = 684π m³ or 2148.85 m³
6.2^2 + b^2 = 8.7^2
38.44 + b^2 = 75.69
b^2 = 37.25
b ≈ 6.1
Answer:
n = 20
Step-by-step explanation:
= 4
You need to get rid of the 6 in the denominator on the left hand side to make it easier to solve, so multiply both sides by 6. So you would get:
(
) × 6 = 4 × 6
n+4 = 24
Then just rearrange for n by subtracting 4 on both sides.
n+4 = 24
n= 24-4
n=20