If you need an explanation please ask, but basically solve for y with the given equation
Answer:

Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form
or 
Let
x-----> the speed of the elevator
y----> the weight it carries
so

<em>Find the constant k</em>
For x=10 ft/sec, y=400 lb
substitute

The equation is

Find the speed for y=500 lb
substitute in the equation


Answer:
6
Step-by-step explanation:
volume of sphere= 4
/3πr³= 4/3*3.14*(20/2)³= 4186.67 in³
max number of goldfish = 4186.67/ 693= 6
He gave his friends 6 smoothies bc if u multiply 3/5 by 2 it is 6/10 and 10-6=4 so his family got 4 smoothies.