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2 years ago

Find the x value 7x-1+6x-1=180

Mathematics

2 answers:

Ede4ka [16]2 years ago

3 0

430 but I don’t auctally know

aleksley [76]2 years ago

3 0

Answer:

Step-by-step explanation:

Let's take it step-by-step

7x-1+6x-1=180

We move all terms to the left:

7x-1+6x-1-(180)=0

We add all the numbers together, and all the variables

13x-182=0

We move all terms containing x to the left, and all other terms to the right

13x=182

x=182/13

x=14

So remember, we move all terms to the left. We add all the numbers together, and all the variables. And we move all terms containing x to the left, and all other terms to the right.

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Suppose f(x) = 1/4 over the range a ≤ x ≤ b, and suppose P(X > 4) = 1/2.

Anettt [7]

Answer:

a=2

b=6

Step-by-step explanation:

Assuming a uniform distribution and that a ≤ x ≤ b, if f(x) = 1/4, then:

$f(x) =\frac{1}{4}=\frac{1}{b-a}\\b-a = 4$

If P(X > 4) = 1/2, then:

$\frac{1}{2} = 1-(\frac{x-a}{b-a})=1-(\frac{4-a}{4})\\a-4+4 =\frac{1}{2}*4\\ a=2\\b=4+a\\b=6$

The values for a and b are, respectively, 2 and 6.

3 0

3 years ago

Solve for x. -x/3=2 x= -6 x= -1 x = 6

LenKa [72]

Answer:

x = -6

Step-by-step explanation:

Solve for x:

-x/3 = 2

Multiply both sides of -x/3 = 2 by -3:

(-3 (-x))/3 = -3×2

-3×(-1)/3 = (-3 (-1))/3:

(-3 (-1))/3 x = -3×2

(-3)/3 = (3 (-1))/3 = -1:

--1 x = -3×2

(-1)^2 = 1:

x = -3×2

-3×2 = -6:

Answer: x = -6

6 0

2 years ago

What is 15 percent of 50

gulaghasi [49]

15% x 50 = 7.5
You can search these up in a calculator or in google if you want. The answers should be online.

5 0

3 years ago

Which statement is true about the parentheses in this expression? [24 − (15 + 2) + 3] − 9

marin [14]

Answer: 0

Step-by-step explanation:

[24 - (15 + 2) +3] -9

[24-(17) +3] -9

[7 +3] -9

9 - 9 = 0

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3 years ago

Graph the equation y=-4/3x + 2

vaieri [72.5K]

Answer:

plz if you knew if you new it plz tell me

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2 years ago