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3 years ago

C= 7/6 (k-17) Solve for k.

Mathematics

1 answer:

Fed [463]3 years ago

7 0

Answer:

The brainliest!

Step-by-step explanation:

c= 7/6k- 17(7/6)

6/7c = k - 17

k = 6/7c+17

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Add. [12 −6 −10]+[−2 14 5 15]

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Step-by-step explanation:

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3 years ago

Chris tells Adam that the decimal value of − 1 1/3 is not a repeating decimal. Is Chris correct?

Verdich [7]

Chris is wrong since $- \frac{11}{3} =-3.666666666666$

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3 years ago

Read 2 more answers

Sydney read 50 pages in 40 minutes. She reads at a constant rate. How many pages can Sydney read per minute

kodGreya [7K]

Sydney can read 0.8 pages a minute

Solution: you divide the time by the amount of pages read
To confirm 0.8 x 50 = 40

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3 years ago

8. rajis annual salary ranges from $25 325 in the 1st year to $34 445 in the 7th year. The salaries in this range form an arithm

-Dominant- [34]

Answer:

a) $1520

b) $S_7 =$ $209195

Step-by-step explanation:

The range of salaries forms an arithmetic sequence with the first term as 25325 and its 7th term as 34445:

a) The raise the person can get each year is the common difference of the progression, d.

The nth term of an arithmetic progression is given generally as:

$a_n = a + (n - 1)d$

where a = first term = 25325

d = common difference

Therefore, the 7th term (34445) will be:

34445 = 25325 + (7 - 1)d

34445 = 25325 + 6d

=> 6d = 34445 - 25325 = 9120

d = 9120 / 6 = $1520

Therefore, the raise the person gets each year (common difference) is $1520.

b) The total amount the person will earn after 7 years is the sum of the salaries of all 7 yeas.

The sum of an arithmetic progression up to the nth term is given as:

$S_n = \frac{n}{2}(2a + (n - 1)d)\\ \\$

Therefore, the sum of the person's salary for the 7 years is:

$S_7 = \frac{7}{2}(2 * 25325 + (7 - 1)1520)\\ \\S_7 = 3.5 (50650 + 6(1520))\\\\S_7 = 3.5 (50650 + 9120)\\\\S_7 = 3.5 * 59770\\$

$S_7 =$ $209195

That is the total amount of salary after 7 years

5 0

3 years ago

How would the expression x2 +8 be rewritten using Sum of Cubes?

Nadusha1986 [10]

Answer:

$x^3+8=(x+2)(x^2-2x+4)$

So if they meant $x^3+8$ then the answer is:

$(x+2)(x^2-2x+4)$ .

The choice this corresponds to is A.

Step-by-step explanation:

The sum of cubes formula for factoring or expanding:

$a^3+b^3=(a+b)(a^2-ab+b^2)$

You have I'm assuming they meant:

$x^3+8$ .

Compare $x^3+8$ to $a^3+b^3$ .

You should see in place of $a$ you have $x$ .

You should also see in place of $b$ you have $2$ .

$a^3+b^3=(a+b)(a^2-ab+b^2)$

$x^3+8$

$x^3+2^3$

$x^3+2^3=(x+2)(x^2-2x+2^2)$

$x^3+8=(x+2)(x^2-2x+4)$

Let's check it for fun.

So we are going to use the distributive property.

We are going to distribute all the terms in the first ( ) to all the terms in the second ( ).

$x(x^2-2x+4)$ + $2(x^2-2x+4)$

$x^3-2x^2+4x$ + $2x^2-4x+8$

Combine like terms:

$x^3-2x^2+2x^2+4x-4x+8$

Simplify the grouping of like terms:

$x^3+0x^2+0x+8$

0 times anything is 0:

$x^3+8$

8 0

3 years ago

C= 7/6 (k-17) Solve for k. ​

C= 7/6 (k-17) Solve for k.