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Nadusha1986 [10]
2 years ago
13

You save $1400 from a summer job. You decide to put it into an account that earns simple annual interest. After 9 months, your b

alance is $1421. Find the annual interest rate.
Mathematics
1 answer:
Ksju [112]2 years ago
3 0

Answer:

2%

Step-by-step explanation:

Calculate annual interest amount first:

                annual interest x 9/12=21

                Annual interest =21x12/9

                 annual interest amount=$28

calculate annual interest rate

                1400 x interest rate = annual interest

               $1400 x interest rate = $28

                interest rate =$28/1400

                interest rate=.02 or 2%

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Free_Kalibri [48]

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<em><u>Solution:</u></em>

Given that,

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3 years ago
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Answer:

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Step-by-step explanation:

<u><em>The complete question is</em></u>

The point of a square pyramid is cut off, making each lateral face of the pyramid a trapezoid with the dimensions shown. What is the area of one trapezoidal face of the figure?

we know that

The area of a trapezoid is given by the formula

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we have

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substitute the given values in the formula

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