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kotegsom [21]
3 years ago
11

Solve the equation. 8d – 4d – 6d – 8 = 2d

Mathematics
2 answers:
IRISSAK [1]3 years ago
4 0
I love equations! Ok this is what you do...

Combine like terms.
8d - 4d - 6d - 8 = 2d
4d - 6d - 8 = 2d
-2d - 8 = 2d
Now you need to isolate the variable. (Add 2d to both sides.)
-8 = 4d
Divide 4 from 4d and -8.
-2 = d
Lets check our work.
8(-2) - 4(-2) - 6(-2) - 8 = 2(-2)
-16 + 8 + 12 - 8 = -4
-8 + 12 - 8 = -4
4 - 8 = -4
-4 = -4
The solution is correct.
I hope this helps love! :)
maw [93]3 years ago
3 0
D=-2 , this is your answer
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3 – (8v–5) + (6 –7v) –1 = 20 – (v–1) + (4v +4) la necesito hoy por favor
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V= - 2/3 De nada, amigo, que tengas un buen día. okay back to english.
4 0
3 years ago
jeds market has a total of 26 employees. Each full time employee makes $275/ week, and each part-time employee makes $140/ week.
I am Lyosha [343]

Answer:

f=17\\p=9\\

Step-by-step explanation:

Let

f= Full-time\\p=Part-time

Full time rates-$275, Part-time rates-$140

The problem can be expressed as:

f+p=26...eqtn1\\275f+140p=5935....eqtn2\\

Express eqtn1 in terms of f,f=26-p

Substitute f value in eqtn 2.

=>275(26-p)+140p=5935\\7150-275p+140p=5935\\1215=135p\\p=9\\f=26-9=17\\

Therefore,  jeds has 17 fulltime and 9 parttime employees.

8 0
3 years ago
Which function is a quadratic function? a(x) = –2x^3 + 2x – 6 b(x) = 5x^3 + 8x^2 + 3 c(x) = –8x^2 + 3x – 5 d(x) = 6x^4 + 2x – 3
Sedaia [141]

Answer:

c(x) = –8x^2 + 3x – 5 is a quadratic

Step-by-step explanation:

A quadratic function involves the 2nd power of x:  x^2, and may (or may not) involve the 1st and zeroth power of x.

a(x) = -2x^3 is not a quadratic because of that exponent 3; in a quadratic, the highest power is always 2.

b(x) = 5x^3 + 8x^2 + 3 is not a quadratic for the same reason that a(x) is not a quadratic.

c(x) = –8x^2 + 3x – 5 is a quadratic:  the highest power of x is x^2, the other powers are x^1 and x^0.

5 0
4 years ago
What is the answer to -5+3(6+7n)=82
dalvyx [7]

Answer:

  n = 3 2/7

Step-by-step explanation:

First of all, look at what you have.

It is a linear equation in n, with several layers of operations performed on it.

You can solve this a couple of ways. (1) Simplify the equation to a 2-step linear equation; (2) Undo the operations done on the variable.

__

(1) -5 +18 +21n = 82 . . . eliminate parentheses

  21n = 69 . . . . . . . . . . subtract 13

  n = 69/21 = 23/7 . . . . divide by the coefficient of n and reduce the fraction

  n = 3 2/7

__

(2) 3(6 +7n) = 87 . . . . . . add 5

   6 +7n = 29 . . . . . . . . . divide by 3

  7n = 23 . . . . . . . . . . . . . subtract 6

  n = 23/7 . . . . . . . . . . . . divide by the coefficient of n

  n = 3 2/7 . . . . write as a mixed number

7 0
3 years ago
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