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notka56 [123]
3 years ago
8

PLEASE HELP, MUST ANSWER NOW!!!!!!!!!!

Mathematics
2 answers:
klasskru [66]3 years ago
5 0

Answer:

20

Step-by-step explanation:

In-s [12.5K]3 years ago
3 0

Answer:

20

Step-by-step explanation:

( it might be wrong pls dont report me just let me kno y its wrong )

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Desmond deposits $50 into a savings account every month at an annual interest rate of
joja [24]

Given:

Desmond deposits $ 50 monthly.

Yearly he deposits = $50×12 = $ 600

Rate of interest compounded monthly = 4.7%

To find the amount he will receive after 10 years and the rate of change the value of his account after 10 years.

Formula

A = P(1+\frac{r}{(n)(100)} )^{nt}

where,

A be the final amount

P be the principal

r be the rate of interest

t be the time and

n be the number of times the interest is compounded.

Now,

Taking,

P = 600, r = 4.7, n = 12, t = 10 we get,

A = 600(1+\frac{4.7}{(12)(100)}) ^{(12)(10)}

or, A = 600(1.0039)^{120}

or, A = 959.1

Now,

At starting he has $ 600

At the end of 10 years he will be having $ 959.1

So,

The amount of change in his account = $ (959.1-600) = $ 359.1

Therefore the rate of change = (\frac{359.1}{600} )(100) %

= 59.85%

Hence,

a) His account will contain $ 959.1 after 10 years.

b) The rate of change in his account is 59.85% after 10 years.

7 0
3 years ago
The reading of a scale at one end is 3.5 cm and at the other end is 18.5 cm. Calculate the lengths of the needle
Bumek [7]

Answer:

15 cm

Step-by-step explanation:

Given that :

Reading at one end, initial reading = 3.5 cm

Reading at the other end, final reading = 18.5 cm

Length of needle :

Final Reading - Initial reading

18.5cm - 3.5cm

= 15cm

6 0
3 years ago
VERBAL
telo118 [61]

Answer:

The initial value in the word problem is the output value when input value is set to zero.

Step-by-step explanation:

  • In the question, it is given that a problem uses a linear function.
  • It is required to explain how to interpret the initial value in a word problem.
  • In order to find the initial value in a world problem, find the output value when input value is set to zero.
  • If the initial value is marked as b for a linear function f(x), find it as follow,
  • b = f (x=0)
6 0
1 year ago
What are the lower and upper quartiles of this data 122,164,71,98,84,147,114,111,98,85,104,71,77
RSB [31]
Lower quartile = 80.5
Upper quartile = 118
7 0
3 years ago
If the length of the base of a triangle is 7 m and the area of this triangle is 56 square meters, what is the length of the heig
lys-0071 [83]

Answer:

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3 years ago
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