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3 years ago

I don’t get this it’s hella confusing please help

Mathematics

1 answer:

Luda [366]3 years ago

3 0

1. Yes , Yes

2. Yes , Yes

3. No , No

4. No, Yes

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A bank advertises that it compounds money quarterly and that it will take Double your money in 10 years. what is the interest-ra

S_A_V [24]

The interest rate is 6.992%, if a bank advertises that it compounds money quarterly and that it will take Double your money in 10 years.

Step-by-step explanation:

The given is,

Compounds money quarterly

Double your money in 10 years

Step:1

Formula to calculate future investment with compounded quarterly,

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

Where, A - Future amount

P - Initial investment\

r - Rate of interest

n - No. of compounding in a year

t - No. of years

Step:2

Let, P = X

A = 2X ( Double your money )

From given, n - 4 ( for compounding quarterly )

t - 10 years

From equation (1)

$2X =X(1+\frac{r}{4} )^{(4)(10)}$

$\frac{2X}{X} =(1+\frac{r}{4} )^{(4)(10)}$

$2 =(1+\frac{r}{4} )^{40}$

Take root $40^{th}$ root on both side,

$\sqrt[40]{2} = (1+\frac{r}{4} )$

$1.017479692 = (\frac{4+r}{4} )$

$(1.017479692)(4) = (r+4)$

$4.06992=(r+4)$

$r = 4.06992 -4$

$r =( 0.06992)(100)$

r = 6.992 %

Result:

The interest rate is 6.992%, if a bank advertises that it compounds money quarterly and that it will take Double your money in 10 years.

3 0

3 years ago

PlZ HELP ME I REALLY NEED THE ANSWERS. WILL GIVE BRAINLIEST. THANKYOU SO MUCH!!!

Dovator [93]

Answer:

Answers are listed hoping that they make sense XD

Step-by-step explanation:

1. -0.5

2. 7

3. -23

I just substituted the value given from x and solved for y. I hope that is what the question is asking for.

Hope this helps :)

4 0

3 years ago

Dimensional analysis: How many atoms are in a kilogram of silver, if there are 6.02 x 10^23 atoms per mole and silver weighs 107

kondor19780726 [428]

Answer:

5.58×10²⁴ atoms.

Step-by-step explanation:

From the question given above, the following data were obtained:

1 mole of silver = 107.9 g

Number of atoms in 1 mole of silver = 6.02×10²³ atoms.

Number of atoms in a kilogram of silver =.?

Next, we shall convert 1 kg of silver to grams (g). This can be obtained as follow:

1 kg = 1000g

Therefore, 1 kg of silver is equivalent to 1000g.

Finally, we shall determine the number of atoms in 1 kg (i.e 1000 g) of silver as follow:

107.9 g of silver contains 6.02×10²³ atoms.

Therefore, 1000 g of silver will contain = (1000 × 6.02×10²³) / 107.9 = 5.58×10²⁴ atoms.

Thus, a kilogram of silver contains 5.58×10²⁴ atoms.

6 0

3 years ago

What is the sum of 3/10 and 68/100

katovenus [111]

Is the sum of 3/10 and 68/100 is =
0.98

4 0

3 years ago

Read 2 more answers

Find the midpoint of the segment connecting (4,7) to (-2,3).

Vadim26 [7]

Answer:

<h2>Midpoint (1 , 5)</h2>

Step-by-step explanation:

Let (x , y) be the coordinates of the midpoint then:

$x=\frac{4+(-2)}{2} = 1\\\\y=\frac{7+3}{2} =5$

6 0

3 years ago