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13 points!

Dawnie deposited $350 in a savings account earning 2% interest over 3 years.

What was the total amount of interest earned at the end of 3 years?









A.
$420







B.
$210







C.
$42







D.
$21


Sagot :

Alialtaee91000idn
The answer is D. 21 dollars is how much dawnie makes.

work: i = p x r x t


P is the principal amount, $350.00.

r is the interest rate, 2% per year, or in decimal form, 2/100=0.02.

t is the time involved, 3....year(s) time periods.

So, t is 3....year time periods.

To get the interest multiply 350 × 0.02 × 3
                                    .  .
The interest is: $21.00 ω
Vuvuong003idn
So to find the interest, the formula is I= Principal × Rate × Time (year)
Change 2% to 0.02
Plug the numbers into the variable, $350 × 0.02 × 3 = $21, so the answer was D.$21.
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