Answer:
(a) 
(b) 
(c) 
Step-by-step explanation:
Given
Variation: Direct
Represent ear pressure with p and depth with d.
So, we have:
when 
Solving (a): Write a variation
We have:
Write as an equation
Where: k is the constant of variation
when
So, we have:
Make k the subject
Substitute 0.43 for k in
Solving (b): Pressure at 50 feet
Substitute 50 for d in
The pressure is 21.5 pounds per square
Solving (c): The safe depth
The safe depth stops at a pressure of 65psi.
Substitute 65 for p in
Make d the subject
-- approximated
<em>The safe distance for an amateur is 151.163ft</em>
Answer:
Step-by-step explanation:
Let suppose that each bus has the same capacity and exists a direct proportionality between the amount of people that is transported and the number of buses:
Where 
is the proportionality constant, which is equivalent to the maximum capacity of each bus. In that case, the quantity of people that is transported on 40 buses is:
Answer:
There are two types of exponential functions: exponential growth and exponential decay. In the function f (x) = bx when b > 1, the function represents exponential growth. In the function f (x) = bx when 0 < b < 1, the function represents exponential decay.
Step-by-step explanation:
Hey there!
Solve for X
x(2y - z) Factor out the variable x
x(2y - z)/2y - z = 4/2y - z Divide both sides by 2y - z
x = 4\2y - z
Hope this helps!
