If the number of students taking online courses is increasing at a rate of 7% per year, How long will it take for the number of students taking online courses to double?

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Work Shown:

The formula to use is , where,

A = final amount after t years

P = starting amount

r = growth rate

t = number of years

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The starting amount does not matter. Let's just make it some nice round number such as P = 100. This will double to A = 2*P = 2*100 = 200.

The growth rate in this case is r = 0.07

We want to solve for t

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Extra info:

and

 D) 10.24 years

Step-by-step explanation:

Since the rate increases at the same rate every year, it is an exponential function.  Use the formula:   where

Given: A = 2P, P = P, r = 7% (0.07), t = unknown

It will take about 10.24 years for the number of students taking online courses to double.

hello :

70y^8 + 30y^6 = 2 ( 35 y^8 + 15y^6)

the lenght is : 35 y^8

the width is : 15y^6