2x + 7 = x + 3 what is X ?

Answers

Answer 1

Answer: 2x + 7 = x + 3

First, subtract x from both sides. / Your problem should look like: $2x + 7 - x = 3$
Second, simplify 2x + 7 - x to x + 7. / Your problem should look like: $x + 7 = 3$
Third, subtract 7 from both sides. / Your problem should look like: $x = 3 - 7$
Fourth, subtract 3 - 7 to get -4. / Your problem should look like: $x = -4$

Answer: x = -4

Answer 2

Answer: x = -4

2x+7 = x+3
- x -x
_________
1x+7 = 3
-7 -7
_________
x = -4

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Two standard number cubes are thrown simultaneously. What is the probability that the combined result of the two cubes is exactly 7, or that it is less than (but not equal to) 6? Round answer to the nearest thousandth. A. 0.444. B. 0.556. C. 0.667. D. 0.853

Answers

Probability = Desired outcomes ( m ) / Possible outcomes ( n )
Desired outcomes:
1 + 1, 1 + 2, 1 + 3, 1 + 4, 1 + 6,
2 + 1 , 2 + 2, 2 + 3, 2 + 5,
3 + 1, 3 + 2, 3 + 4,
4 + 1, 4 + 3
5 + 2,
6 + 1.
m = 16
Possible outcomes : 6² = 36, n = 36
P ( A ) = 16/ 36 = 0.4444...≈ 0.444
Answer: A ) 0.444

1 + 1, 1 + 2, 1 + 3, 1 + 4, 1 + 6,

2 + 1 , 2 + 2, 2 + 3, 2 + 5,

3 + 1, 3 + 2, 3 + 4,

4 + 1, 4 + 3

5 + 2,

6 + 1.

m = 16

Possible outcomes : 6² = 36, n = 36

P ( A ) = 16/ 36 = 0.4444...≈ 0.444

Answer: A ) 0.444

Hope I helped!

A rocket lifted off from a launch pad and traveled vertically 30 km, then traveled 40 km at 30 degrees from the vertical, and then traveled 100 km at 45 degrees from the vertical. At that point, the rocket was how many kilometers above the height of the launch pad?

Answers

Well, we are told that in the beginning, it has traveled 30km vertically, so do not forget to add that on at the end.

Next it says that it traveled 40km 30 degrees from vertical, so we set up a sin equation to solve for the missing side, n:

sin(angle)= opposite/hypotenuse:

sin(30) = n/40

40sin30=n

n=20km

Then it says at an angle of 45 degrees, it goes 100km. This means that we are given the hypotenuse of a right triangle, and we need to find the side that goes up and down. We shall call this length x.

We know that the angle opposite x is 45 degrees.

So, we will use sin to solve for x:

sin(angle)= opposite/hypotenuse

sin45= x/100

100sin45=x

x=70.711km

But remember, I said not to forget about that 30km from the very beginning? So we add up all of our vertical heights:

30km + 20km+ 70.711km = 120.711km

the area of a rectangle is 54x^9y^8 square yards if the length of the rectangle is 6x^3y^4 yards what expression represents the width of the rectangle in yards

Answers

For this case we have:
The area of a rectangle is given by:
A = (w) * (l)
Where,
w: width
l: long
Substituting values we have:
(54x ^ 9y ^ 8) = (w) * (6x ^ 3y ^ 4)
Clearing w we have:
w = (54x ^ 9y ^ 8) / (6x ^ 3y ^ 4)
Rewriting:
w = (9 * x ^ 6y ^ 4)
Answer:
the length of the rectangle is:
w = (9 * x ^ 6y ^ 4)

Will Mark brainliest Please check my answer >.<

Answers

Can u let me know when someone answers this, I have this same question

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Answers

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A migrating bird flies 312 miles in 13 hours. How many miles does it fly in 5 hours?

Answers

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