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Shtirlitz [24]
3 years ago
12

Can you help me find the percent? From 42 acres to 72 acres

Mathematics
1 answer:
Lapatulllka [165]3 years ago
5 0

Answer:

71.42

Step-by-step explanation:

Percentage change:×100%

Now, the change is given from 42 acres to 72 acres, therefore

Change= 72-42=30

⇒Percentage change= ×100%

                                   = 71.42

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<h3>How to solve?</h3>

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#V=pi r^2 h#

There is radius in the formula, but in this problem, radius is constant so it is not a variable. We can substitute the value in:

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Since the rate in this problem is time related, we need to implicitly differentiate wrt (with respect to) time:

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#(dh)/(dt)=(3m^3)/(min (25m^2) pi)=3/(25 pi)m/(min)#

Hence,  Height of the water increasing is at rate of  #(dh)/(dt)=3/(25 pi)m/(min)#

<h3>Formula used: </h3>

#V=pi r^2 h#

To Learn more visit:

brainly.com/question/4313883

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