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Lyrx [107]
3 years ago
8

Vanessa invested $2,500 into an account that will increase in value by 3.5% each year. Write an exponential function to model th

is situation, then find the value of the investment after 20 years.
Mathematics
1 answer:
anygoal [31]3 years ago
5 0

An exponential function is  F = P (1+i)^{t}. $4975 is the value of the investment after 20 years, if Vanessa invested $2500 that will increase in value by 3.5% each year.

Step-by-step explanation:

The given is,

                    Vanessa invested $2,500

                    Increase in value by 3.5% each year

Step:1

             Formula to calculate the future value is,

                                      F = P (1+i)^{t}.............................(1)

           Where, F - Future worth of the investment

                       P - Initial investment

                        i - Rate of increase

                         t - Time taken

        From given values,

                    P = $2500

                     i = 3.5%

                  t = 20 years

       Equation (1) becomes,

                                F = 2500 (1+0.035)^{20}               ( i=\frac{3.5}{100} = 0.035 )

                                    =  2500 (1.035)^{20}

                                    = (2500 × 1.989788)

                                    = 4974.4721

                                    ≅ $4975

                                F = $4975

Result:

             An exponential function is  F = P (1+i)^{t}. $4975 is the value of the investment after 20 years, if Vanessa invested $2500 that will increase in value by 3.5% each year.

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