orWatch a videoJennahas$30inasavingsaccount.Theinterestrateis5%peryearandisnotcompounded.Howmuchinterestwillsheearnin4years?
Question
orWatch a videoJennahas$30inasavingsaccount.Theinterestrateis5%peryearandisnotcompounded.Howmuchinterestwillsheearnin4years?
Solution
To calculate the interest Jenna will earn in 4 years, we need to use the formula for simple interest which is I = PRT, where:
- I is the interest
- P is the principal amount (the initial amount of money)
- R is the rate of interest per year
- T is the time the money is invested for in years
In this case, Jenna has $30 in her savings account (P), the interest rate is 5% per year (R), and she will keep the money in the account for 4 years (T).
Step 1: Convert the interest rate from a percentage to a decimal by dividing by 100: R = 5/100 = 0.05
Step 2: Substitute the values into the formula: I = PRT = 30 * 0.05 * 4
Step 3: Calculate the interest: I = $6
So, Jenna will earn $6 in interest over 4 years.
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