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Sophia borrowed $13,671 at 6% simple interest for 3 months. How much will the interest amount to? What is the total amount that she will have to pay back at the end of 3 months? Round answers to the nearest cent if necessary.

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Final answer:

Sophia will pay $205.07 in simple interest for a loan of $13,671 at 6% annual rate for 3 months. The total amount she will have to repay is $13,876.07.

Step-by-step explanation:

To calculate the simple interest Sophia will pay for borrowing $13,671 at a 6% annual rate for 3 months, you can use the simple interest formula I = P × r × t, where I is the interest, P is the principal amount, r is the annual interest rate (in decimal form), and t is the time in years.

For Sophia's loan:

  • P = $13,671
  • r = 6% or 0.06 (as a decimal)
  • t = 3 months or 0.25 years (since there are 12 months in a year)

Now, plug these values into the formula:

I = $13,671 × 0.06 × 0.25

I = $205.065

After rounding to the nearest cent, the interest amount is $205.07.

The total amount Sophia will have to pay back at the end of 3 months is the principal plus the interest:

Total Repayment = Principal + Interest

Total Repayment = $13,671 + $205.07

Total Repayment = $13,876.07

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