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wel
3 years ago
8

Javier's parents set an amount of money aside when he was born. They earned 4.5% simple interest on that money each year. When J

avier was 15, the account had a total of $1012.50 interest paid on it. How much did Javier's parents set aside when he was born
Mathematics
1 answer:
solmaris [256]3 years ago
6 0

Answer:

Javier's parents set aside $1500 when he was born

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

E = P*I*t

In which E is the interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

In this question, we have that:

E = 1012.50, t = 15, I = 0.045

We have to find P. So

E = P*I*t

1012.50 = P*15*0.045

P = \frac{1012.50}{15*0.045}

P = 1500

Javier's parents set aside $1500 when he was born

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10 ft
wariber [46]

Answer:

<em>The perimeter of given figure  = 56.56 ft</em>

Step-by-step explanation:

<u>Step(i):-</u>

From diagram

      The length of the rectangle = 10 ft

     The width of the rectangle = 8 ft

     Perimeter of the rectangle

                      = 2 ( l+w)

                     =  2 ( 10 + 8)

                     = 2 × 18

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<u><em>Step(ii):-</em></u>

The semi circle is included in the given diagram

<em>Now we will find the perimeter of semicircle</em>

<em>We know that </em>

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<em>        P = πr + 2 r    (∵ d = 2 r)</em>

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<em> From diagram the diameter of semicircle is equal to the width of the rectangle </em>

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<em> The radius of the circle 'r' = 4   </em>

<em>     perimeter of the semicircle</em>

<em>        P = πr + 2 r   </em>

<em>       P = 3.14 ( 4) + 8</em>

<em>      P= 20.56</em>

<u><em>Conclusion:-</em></u>

<em>The perimeter of given figure</em>

<em>                     = perimeter of rectangle + perimeter of semicircle</em>

                    = 36 + 20.56

                   =56.56 ft

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Answer:

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