What is the value of x in the equation −6 + x = −2?8

4

−4

−8

Answers

Answer 1

Answer:

B. = 4

How do you Find X in an equation?

angle A + angle B + angle C = 180 degrees. Solve for x in the fractions, we simply do the cross multiplication or simplify a equation by find x. For example: Solve for x for the equation ⇒ 2/5 = x/10. We could use the system of the equations solver to find the value of x when we have equations with different variables.

Given −6 + x = −2

We have to solve for x

-6 + x = -2

x = -2 + 6

x = 4

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Answer 2

Answer: -6 + x = -2

first, add 6 to both sides.

x = -2 + 6
x = 4

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What is the solution to 2x+5>3x+1

NVM it is DFind the surface area of the cylinder with a radius of 9 inches and a height of 11 inches in terms of pi
a) 198 pi in^2
b) 234 pi in^2
c) 846 pi in^2
d) 360 pi in^2

Answers

T.S.A of a cylinder = 2 $\pi$ r² + 2 $\pi$ rh
=2(9)² $\pi$ + 2(9)(11) $\pi$
= 162 $\pi$ + 198 $\pi$
= 160 $\pi$ in²

And yes the Answer is D. 360 $\pi$ in²

2
Multiple choice. How many solutions does the equation 6 + 1 = -6x+ 10 have?

Answers

Answer:

x = 0.5, one solution

Step-by-step explanation:

6+1 = -6x + 10

7 = -6x + 10

-3 = -6x

6x = 3

x = 3/6

x = 1/2

x = 0.5

Solve 5x+y=23 3x+y=17

Answers

Answer:

y = 8

x = 3

Step-by-step explanation:

5x+y=23

3x+y=17

cancel out the Xs

15x + 3y = 69

-15x - 5y = -85

-2y = -16

y = 8

Plug in 8 for the Y in any of the equations it doesn't matter

3x + y = 17

3x + 8 = 17

3x = 9

x = 3

hope this helps

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Answers

Answer:

I come here to get answers for my homework and help other people

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Answer:

we answer each others questions and have fun !!

A boat travels at 15 km/hr in still water. In travelling 45 km downstream from town A to town Bit completes the journey in 75 minutes less than it takes for the return journey. At what speed does the river flow?

Answers

Let the speed of river be x km/hr down stream.

Time = Distance / speed

Since river flows downstream, speed of boat down stream = Speed of boat + speed of river = (15 + x).

Since river flows downstream, speed of boat upstream = Speed of boat - speed of river = (15 - x).

Time Upstream - Time Downstream = 75 minutes

Time Upstream = 45 / (15 - x)

Time Downstream = 45 / (15 + x)

75 minutes = 75/60 = 5/4 hours

Time Upstream - Time Downstream = 75 minutes = 5/4 hours

45 / (15 - x) - 45 / (15 + x) = 5/4 Divide both sides by 45

1 / (15 - x) - 1 / (15 + x) = (5/4)*(1/45)

1 / (15 - x) - 1 / (15 + x) = 1/36

((15 + x) - (15 -x)) / (15-x)(15+x) = 1/36

(15 +x - 15 +x) / (15-x)(15+x) = 1/36

2x / (15-x)(15+x) = 1/36

(15-x)(15+x) = 2x*36

(15-x)(15+x) = 72x

225 - x² = 72x

0 = x² + 72x -225

x² + 72x -225 = 0 This is a quadratic function, use a calculator that can solve the function, by inputting the function.

x = 3, or -75. Since we are solving for speed, we can not have negative values.

x = 3 is the only valid solution.

Speed of the river = 3 km/hr downstream.

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Help this is my last grade of the year and I need to do good