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12 December, 00:25

Write an arithmetic expression that calculates the yearly interest earned on a amount that's stored in a decimal variable named principalAmount at an interest rate that's stored in a decimal variable named interestRate. (The interest rate is stored as a decimal fraction like. 055 for a rate of 5.5%.)

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Answers (2)
  1. 12 December, 01:20
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    Principal Amount x Interest Rate
  2. 12 December, 01:43
    0
    yearlyInterest = principalAmount * interestRate * year

    Step-by-step explanation:

    The general formula for interest is given as:

    (principal * rate * time) / 100

    but in this case the rate has been converted to decimal and the time is in year.

    The principal is represented as principalAmount

    The rate is represented as interestRate

    The time is represented as year

    So, the arithmetic expression is to multiply every term together without dividing by 100 since rate is expressed as a decimal fraction.
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