Hope this helps I used Matheus
Given :
Salt is poured from a container at 10 cm³ s-¹ and it formed a conical pile whose height at any time is 1/5 the radius of the above.
To Find :
At what rate is the height of the cone increasing when the height is 2 cm form the base of the cone.
Solution :
We know, volume of a cone is given by :

Also, h = r/5
r = 5h

Differentiating above equation w.r.t h, we get :

Hence, this is the required solution.
1. I have 5 times some number of shoes. I give 10 away and now have 40. How many shoes did I originally start with?
2. I have 3 times some number of apples. I get 4 more apples. What amount of apples did I originally<span> start with? </span>
I believe it is <span>D. 7.3333~ :)</span>
Answer: a
Step-by-step explanation:
2x=2
x=
==> Period:
==> a