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NNADVOKAT [17]
3 years ago
9

Find the interest rate r given I=$ 56,P=450 and t = 6 years , round your answer to the nearest

Mathematics
1 answer:
m_a_m_a [10]3 years ago
5 0

Answer:

0.163

Step-by-step explanation:

P = I (1 + r)ᵗ

450 = 56 (1 + r)⁶

8.036 = (1 + r)⁶

log₆ 8.036 = 1 + r

log 8.036 / log 6 = 1 + r

1.163 = 1 + r

r = 0.163

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If a bank account doubles in size every 5 years, then by what percent does it grow after only 3 years? Round to the nearest tent
mr Goodwill [35]

Answer:

Step-by-step explanation:

Alright, let get started.

Suppose the initial deposit in account = x

After five years, this accounts get doubled means  = 2x

Means in 5 years , the growth = 2x-x = x

So, in 1 year, the growth will be = \frac{x}{5}

So, in 3 years, the growth will be = \frac{x}{5}*3=\frac{3x}{5}

So percent grwoth will be = \frac{\frac{3x}{5}}{x}*100 = 60

Hence percentage growth is 60 %.    :  Answer

Hope it will help :)


4 0
3 years ago
Find the total area the regular pyramid.<br><br><br><br> T. A. =
alexira [117]
The answer would be   A = 54raiz (3) + 18raiz (91)
Formula:
 A = Ab + Al Where, Ab=base area A= lateral area

 The area of the base is: Ab = (3/2) * (L ^ 2) * (root (3)) Where, L= side of the hexagon. Substitute: Ab = (3/2) * (6 ^ 2) * (root (3)) Ab = (3/2) * (36) * (root (3)) Ab = 54raiz (3)


 The lateral area is: Al = (6) * (1/2) * (b) * (h) Where, b= base of the triangle h= height of the triangle Substitute: Al = (6) * (1/2) * (6) * (root ((8) ^ 2 + ((root (3) / 2) * (6)) ^ 2)) Al = 18 * (root (64 + 27)) Al = 18raiz (91)

 The total area is: A = 54raiz (3) + 18raiz (91)

6 0
3 years ago
Read 2 more answers
Simplify -3y(y + 2)^2 - 5 + 6y
ser-zykov [4K]

Answer:

That'll help a lot of people in the future ^.^

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the area of the triangle?
klemol [59]
A = 1/2 bh = 1/2(8)(6) = 48/2 = 24

answer
first one.
24 square units
3 0
3 years ago
Read 2 more answers
6x + 25; where x = 4
julia-pushkina [17]

Answer:

49

Step-by-step explanation:

6(4)+25

Solve:

6 times 4=24

24+25=49

8 0
3 years ago
Read 2 more answers
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