A town has a population of 4000 and grows at 3.5% every year. To the nearest year, how long will it be until the population will reach 7500?

18.273 years will take to reach the population of 7500, if a town has a population of 4000 and grows at 3.5% every year.

Step-by-step explanation:

The given is,

             Population of 4000

             Rate of grow 3.5% every year

             Population after few years 7500

Step:1

            Formula to calculate the population with the grow rate every year,

                                   ..........................(1)

           Where,

                    F - Population after t years

                   P - Initial population

                    r - Rate of grow

                    t - No.of years

          From given,

                  F = 7500

                  P = 4000

                   r = 3.5%

        Equation becomes (1),

                   

                     

                   1.875 =

                   

       Take log on both sides,

             

       Substitute log values,

                 

                         

                             = 18.273

                          t = 18.273 year

                             or

                         t = 18 years 3 months 2 weeks

Result:

          18.273 years will take to reach the population of 7500, if a town has a population of 4000 and grows at 3.5% every year.

Khalid and Sue's Height together is 126 Inches. The difference is 6 inches, so therefore you subtract 6 from the total getting you 120 Inches. You do this with all of the problems for example: The first one. Sue is 72 inches and Khalid is 54. Add them together and subtract them by 6 to get your final answer. Please DO NOT quote me on this lol. This is how I read the question. I think this is right but I am not absolutely 100% sure. Hope this helps.