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2 years ago

Calculate the interest rate when the principal is $300 and interest earned is $40 after 3

Mathematics

1 answer:

stich3 [128]2 years ago

3 0

Answer:

4.4%

Step-by-step explanation:

solution:

principal (p) = $300

time(t) = 3 years

interest (I ) =$40

rate (r) = ?

we know that,

I = (PTR)/100*

OR, 40 = (300 *3 * R)/100

or, 40 = (900R)/100

or, 40 = 9R

or, 40/9 = R

or, R = 4.4%

Rate(r) =4.4%

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2 years ago

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Answer:

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Step-by-step explanation:

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see the attached figure

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Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers