ii) If the investment is left in place, algebraically determine the time for John's investment to...
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ii) If the investment is left in place, algebraically determine the time for John's investment to reach $6300. Find an exact answer in terms of base e and then use a calculator to find a decimal approximation to the nearest year. Check with the graph. iii) Algebraically determine the exact time in years for the investments to be equal in value. Express your answer in terms of base e. Two students are saving money for a graduation trip to Europe in several years. George has just sold his car for $5000 and has invested his money in a fund at an interest rate of 5.4% per year, compounded monthly. At the same time, John has invested his part-time job savings of $4500 in another fund at an interest rate of 6.8% per year, compounded quarterly. a. Using the compound interest formula (see page 290), find an exponential growth model for the money belonging to each student. Start by filling in the following table to specify the parameters P, r, and n for each investment. Then find the exponential model for each investment, approximating the base to 4 decimal places. George P = r = n = AG(t) = John P = r = n = A(t)= b. i) Calculate the future value of each investment after 4 years to the nearest dollar. ii) Using DESMOS, sketch both exponential growth curves on the practical domain on the same Cartesian Plane. From the graph, confirm the value of each investment after 4 years and find the approximate time for the investments to be equal in value. c. i) If the investment is left in place, algebraically determine the time for George's investment to double. Find an exact answer in terms of base e and then use a calculator to find a decimal approximation to the nearest year. Check with the DESMOS graph. ii) If the investment is left in place, algebraically determine the time for John's investment to reach $6300. Find an exact answer in terms of base e and then use a calculator to find a decimal approximation to the nearest year. Check with the graph. iii) Algebraically determine the exact time in years for the investments to be equal in value. Express your answer in terms of base e. Two students are saving money for a graduation trip to Europe in several years. George has just sold his car for $5000 and has invested his money in a fund at an interest rate of 5.4% per year, compounded monthly. At the same time, John has invested his part-time job savings of $4500 in another fund at an interest rate of 6.8% per year, compounded quarterly. a. Using the compound interest formula (see page 290), find an exponential growth model for the money belonging to each student. Start by filling in the following table to specify the parameters P, r, and n for each investment. Then find the exponential model for each investment, approximating the base to 4 decimal places. George P = r = n = AG(t) = John P = r = n = A(t)= b. i) Calculate the future value of each investment after 4 years to the nearest dollar. ii) Using DESMOS, sketch both exponential growth curves on the practical domain on the same Cartesian Plane. From the graph, confirm the value of each investment after 4 years and find the approximate time for the investments to be equal in value. c. i) If the investment is left in place, algebraically determine the time for George's investment to double. Find an exact answer in terms of base e and then use a calculator to find a decimal approximation to the nearest year. Check with the DESMOS graph.
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