Instructions: If y varies inversely as I and y=7 when X= -4. find y when x=2. Write the equation using the given information, then use the equation to solve for y. Use the forward slash (i. e. "/") for all fractions (e. g. - 1/2 is the same as -1/2).
Equation:
Solution: y=

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !

x = 3 ± √(5+y)

well, because the $0.25 is an added cost depending on how many minutes, the answer would be y = 30 + 0.25x.