An investment of $5,000 is made at a simple annual interest rate of 3%. how much additional money must be invested at a simple annual interest rate of 3.9% so that the total annual interest earned is 3.5% of the total investment?

 Additional money is $6250.

Step-by-step explanation:

Since we have given that

Amount of investment = $5000

Rate of simple interest = 3%

Let the additional amount of investment be 'x'.

Rate of simple interest = 3.9%

Total annual interest rate on total investment = 3.5%

So, According to question, it would be

Hence, Additional money is $6250.

step-by-step explanation:

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