Answer:
y = 15
Step-by-step explanation:
Given: y varies directly with x, x=4 when y=20
To find: y when x = 3
Solution:
As y varies directly as x, it means that as x increases, y also increases by the same factor.
As y varies directly with x,

Here, k is a constant
As x = 4 when y = 20,

Put x = 3

18m
Step-by-step explanation:
5x3=15 +3 =18
Answer:
-3.8-22y
Step-by-step explanation:
3.2-11(2y+1)+4
-11×2y=-22y
-11×1=-11
3.2-22y-11+4
3.2-11+4=-3.8
-3.8-22y
Answer:
V = 1071.79 yd^3
Step-by-step explanation:
The volume of a cone is
V = 1/3 pi r^2 h where r is the radius and h is the height
We are given a diameter of 16 so the radius is 1/2 of the diameter or 8
The height is 16
V = 1/3 ( 3.14) (8)^2 ( 16)
V = 1071.78666 yd^3
Rounding to the nearest hundredth
V = 1071.79 yd^3
Answer: 12n crisp
Step-by-step explanation: you dont know n so you just put 12 with n next to it indicating 12 times n