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3 years ago

What does -1/2x=6 what does x equal

Mathematics

2 answers:

pantera1 [17]3 years ago

8 0

Multiply both sides by 2
so
-1x = 12
divide both sides by -1
x = -12

Hope this helps :)

gogolik [260]3 years ago

3 0

Well, we would solve it as cancelling out -1/2 by multiplying it by its reciprocal (-2/1) to get x by itself, and now we'll do the same on the other side, where 6/1 times -2/1 = -12/1, which is the same as -12.
So x = -12 :3

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Counted a total of 40 white cars and yellow cars there were 9 times as many as white cars as yellow cars. how many white cars di

Law Incorporation [45]

Let W = number of white cars, and Y = number of yellow cars.
There were 9 times as many white cars as yellow cars. This means that the number of white cars was 9 times more than the number of yellow cars. This can be translated by the expression:
9Y = W
The person counted 40 cars in total:
W + Y = 40

So we get the system:
$\left \{ {{W+Y=40} \atop {9Y=W}} \right.$

In the first equation, we multiply by 9:
9W + 9Y = 360
In the second equation:
9Y= W
W-9Y = 0

Then we add the first with the second equation:
9W + 9Y + W - 9Y = 360
10 W = 360
W = 36

So He counted 36 white cars.

Hope this Helps! :)

8 0

3 years ago

Glven the line segment RT, with endpolnt R(6,9) and<br> midpoint A(-3,7)

Rzqust [24]

It would be (-12, 5)

7 0

3 years ago

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solong [7]

Answer:

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Step-by-step explanation:

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3 years ago

-21+(-59) what is the answer

Lemur [1.5K]

Answer:

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Step-by-step explanation:

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2 years ago

PLEASE HURRY <br> Which equation of a line passes through the points (3,<br> -1) and (6, 1)?

LenKa [72]

To write the equation of line in y = mx + b form, we need

to identify the slope of the line and the y-intercept.

I would start by setting up a coordinate

system and plotting both points.

I have shown this below.

Let's start with our first point, (3, -1) which we call point A.

Now our second point, (6, 1) which we call point B.

To get from point A to point B, we rise 2 units and run 3 units.

So we know that our slope is 2/3.

However, we need the y-intercept.

Remember, this is the point where the line crosses the y-axis.

Since point B is farther from y-axis,

we need to go in the other direction.

So starting at point A, we go down 2 and to the left 3.

Remember, -2/-3 is 2/3 since a negative/negative = positive.

Now plot point C.

Notice that point C is on the y-axis.

It has the coordinates (0,-3).

Now we know our slope and y-intercept.

So our equation reads 2/3x - 3.

The slope is positive since the line is going up.

7 0

3 years ago