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algol [13]
3 years ago
11

Susan has $800 in a savings account that earns 6% annually. If the interest is not compounded, how much interest will she earn i

n 5 years?
A) $30.00
B) $48.00
C) $240.00
Eliminate
D) $480.00
Mathematics
1 answer:
ruslelena [56]3 years ago
7 0

Answer:

The correct option is C.

Step-by-step explanation:

It is given that Susan has $800 in a savings account that earns 6% annually and the interest is not compounded.

It means Susan received simple interest.

Formula of simple interest:

I=\frac{P\times r\times t}{100}

Where P is principal amount, r is rate of interest in percentage and t is time in years.

I=\frac{800\times 6\times 5}{100}

I=240

The amount of interest is $240.00. Therefore option C is correct.

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radius   x  = 3 ft

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V(t)  = V(cylinder) + V(hemisphere)

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V(h) = (2/3)*π*x³   area of hemisphere   A(h)  =   (2/3)*π*x²

A(t)  =  π*x²  +   2*π*x*h +   (2/3)*π*x²

Now A as fuction of x    

total volume   505  = π*x²*h  +  (2/3)*π*x³

h = [505 - (2/3)* π*x³ ]  /2* π*x    

Now we have the expression for A as function of x

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x₁  =  0  we dismiss

6 - 2x = 0

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h  =  (505 - 18.84) / 6.28*3

h  = 23,8  ft

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