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zlopas [31]
2 years ago
11

If the balance at the end of eight years on an investment of $230 that has been invested at a rate of 3% is $285.20, how much wa

s the interest
Mathematics
2 answers:
Oliga [24]2 years ago
8 0

Answer:

The interest credited after investment is $55.2

Step-by-step explanation:

Given as :

The investment principal amount = p = $230

The Amount after 8 years of investment = A = $285.20

The Time period for investment = 8 years

The rate of interest applied = r = 3%

Let The interest credited after investment = I

Now, According to question

<u>From Compound Interest</u>

Amount = Principal × (1+\dfrac{\textrm rate}{100})^{\textrm time}

And Interest = Amount - Principal

Or, I = A - p

Or, I = $285.20 - $230

∴   I = $55.2

So, The interest credited after investment = I = $55.2

Hence, The interest credited after investment is $55.2 Answer

otez555 [7]2 years ago
5 0

Answer:

The interest that is obtained from that investment is $55.2

Step-by-step explanation:

If the balance at the end of eight years on an investment of $230 that has been invested at a rate of 3% is $285.20, so the principal of investment is $230 and the matured sum is $285.20.

Now, we know that Principal + Interest = Matured sum.

Hence, the interest that is obtained from that investment is $(285.2 - 230) = $55.2 (Answer)

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Answer:

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Step-by-step explanation:

To find the inverse of a function, simply switch the 'x' and 'y' variables. Substitute in 'y' in the place of f(x) for this purpose:

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Switch positions:

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Add '10' to both sides to begin simplifying:

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