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Effectus [21]
3 years ago
6

Mikayla opens a savings account with a principal balance of $3,000. After 5 years, she earns $450 in interest. Using the equatio

n I=prt, where I=interest, p= principal, r=rate, and t=time.
What is the interest rate on Mikayla's account after 5 years?
Mathematics
1 answer:
dlinn [17]3 years ago
3 0
3% is the interest rate. Using the formula I=PRT, you can simply derive the rate by putting the given numbers in.
I = 450P = 3,000R = ?T = 5 Years
The equation now goes,450 = 3,000 * R * 5450 = 15,000 * R450/15,000 = R0.03 = R
 multiply it by 100,
R = 3%
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