Respuesta :

Answer:

The annual investment rate applied to the investment is 6.23%

Step-by-step explanation:

For finding out the interest rate we will use the Direct Rule of Three, this way:

Value of the investment       Percent

$ 610                                          100

$ 648                                          x

610x = 64,800

x = 64,800/610

x = 106.23

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Annual investment rate = 106.23 - 100 = 6.23%