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elena-14-01-66 [18.8K]
3 years ago
5

Diana invested $3000 in a saving account for 3 years. she earned $450 in interest over the time period. what interest rate did s

he earn? use the formula i=prt to find your answers, where i is the interest, p is the principal, r is the rate and t is the time.enter your solution in decimal form rounded to the nearest hundreds
Mathematics
2 answers:
Yanka [14]3 years ago
8 0

Answer:

The rate of percentage is 5.00% .

Step-by-step explanation:

Formula

Simple\ interest = \frac{Principle\times Rate\times Time}{100}

As given

Diana invested $3000 in a saving account for 3 years.

she earned $450 in interest over the time period.

Principle  = $3000

Simple interest = $450

Time = 3 year

450= \frac{3000\times Rate\times 3}{100}

\frac{450\times 100}{3000\times 3}= \frac{Rate}{100}

\frac{45000}{9000}= Rate

Rate = 5%

Therefore the rate of percentage is 5.00% .

Lelu [443]3 years ago
4 0
R=i/pt
R=450/3000*3
R=0.05*100=5%
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