Answer:
The answer is H = p/mg.
Step-by-step explanation:
Give the variables actual values, and then solve. Let's say:
H = 4
G = 3
M = 2
The equation P = mgh tells us to multiply m x g x h. 3 x 2 x 4 = 24, so P = 24.
Now our values are:
P = 24
H = 4
G = 3
M = 2
So now we have to find which equation is equal to 4, or the value we have substituted for H.
So let's test the answer choices out.
H = P - mg. This would say that 4 = 24 - 2 x 3. 2 x 3 = 6, and 24 - 6 is 18. 18 is not equal to 4, so H = P - mg is not the correct answer.
H = pg/m. This would say that 4 = 24 x 3 divided by 2. 24 x 3 is 72, and 72 divided by 2 is 36. 36 is not equal to 4, so H = pg/m is not the correct answer.
H = P + mg. This would say that 4 = 24 + 2 x 3. 2 x 3 is 6, and 24 + 6 is 30. 30 is not equal to 4, so H = P + mg is not the correct answer.
H = p/mg. This would say that 4 = 24 divided by 2 x 3. 2 x 3 is 6, and 24 divided by 6 is 4. 4 is equal to 4, so H = p/mg is the correct answer.
This formula of substituting the variables for values can work for any value. Just do yourself a favor and make it easy for yourself, by not choosing values like 13045. That's just a waste of time.
