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3 years ago

Can you help me by solving the following question ?

Mathematics

1 answer:

vredina [299]3 years ago

6 0

Answer:

there should be formula at last look carefully and see formula u will find it

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Last one<br> 7(5k-25)=35

Oksanka [162]

Answer:

K= 6

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

If x = 3 + 2√2, then the value of (x - 1/x) is<br><br> a) 4√2<br> b) 2√4<br> c) 8

vitfil [10]

Your answer is: A. 4/2

Hope this helps and happy holidays!!

5 0

3 years ago

When dante was born, his grandparents deposited $10,000 into a special college fund that paid 4% annual interest, compounded mon

RSB [31]

Using compound interest, it is found that Dante was 6.6 years old when the balance in the account reached $13,000.

<h3>What is compound interest?</h3>

The amount of money earned, in compound interest, after t years, is given by:

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

In which:

A(t) is the amount of money after t years.

P is the principal(the initial sum of money).

r is the interest rate(as a decimal value).

n is the number of times that interest is compounded per year.

In this problem, we have that the parameters are given as follows:

A(t) = 13000, A(0) = 10000, r = 0.04, n = 12.

Hence the time in years is found as follows:

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

$13000 = 10000\left(1 + \frac{0.04}{12}\right)^{12t}$

$(1.0033)^{12t} = 1.3$

$\log{(1.0033)^{12t}} = \log{1.3}$

$12t\log{1.0033} = \log{1.3}$

$t = \frac{\log{1.3}}{12\log{1.0033}}$

t = 6.6

More can be learned about compound interest at brainly.com/question/25781328

#SPJ1

5 0

2 years ago

A number was written on the board. one student increased the number by 23, but another student decreased the number by 1. the fi

Softa [21]

Let the number be x.

First student increased the number by 23, therefore
⇒ x + 23

Second student decreased the number by 1, therefore
⇒ x - 1

The first student's result was 7 times greater than the result of the second student's, therefore
⇒ x + 23 = 7(x - 1)

----------------------------------------------
Solve for x:
----------------------------------------------
x + 23 = 7( x- 1)
x + 23 = 7x - 7
6x = 30
x = 5

--------------------------------------------------------------------------------------------
Answer: The number on the board is 5.
--------------------------------------------------------------------------------------------

4 0

4 years ago

Read 2 more answers

Write in p by q form 2.6363

Bogdan [553]

Answer:

Step-by-step explanation:

$2.6363=\frac{26363}{10000}\\\\$

Count the number of digits after the decimal point.

Here there are 4 digits after decimal point, so, divide by 10000

8 0

3 years ago