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storchak [24]
4 years ago
13

B=3x+9xy solv for x

Mathematics
2 answers:
IrinaVladis [17]4 years ago
8 0
The answer is  B = 12 x
Aliun [14]4 years ago
3 0

Answer:

x= \frac{B}{3(1 + 3y)}

or

x =  \frac{B}{(3 + 9y)}

Step-by-step explanation:

The given equation is B = 3x + 9xy

We have to solve for x.

B = 3x + 9xy

Let's factor the above equation.

B = 3x(1 + 3y)

We need to solve for x.

So, divide both sides by (1 + 3y), we get

\frac{B}{(1+ 3y)} = \frac{3x(1+3y)}{(1 +3y)}

\frac{B}{(1 + 3y)} = 3x

This can be written as

3x = \frac{B}{(1 + 3y)}

Now dividing both sides by 3, we get

x= \frac{B}{3(1 + 3y)}

or

x =  \frac{B}{(3 + 9y)}

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150

Step-by-step explanation:

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4 years ago
Please try to help me if you can
Olegator [25]

Answer:

D is the correct answer

Step-by-step explanation:

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3 0
3 years ago
Which transformations of RST will result in the same image? Check all that apply.
maksim [4K]

Answer:

I think sentences 1 and 2

Step-by-step explanation:

If triangle translated 2 units left, (x,y)-----(x-2,y)

and then reflected over the y-axis, (x-2,y)-----(-x+2,y)

The relation between image and pilgrimage is (x,y)-----(-x+2,y)

The vertices of image are S(-4,4),T(-1,4), R(-1,1)-----S'(6,4),T'(3,4), R'(3,1)

Therefore the vertices of image are S'(6,4),T'(3,4), R'(3,1).

1. A reflection over the y-axis and then a translation 2 units right is defined as (x,y)-----(-x+2,y)

It is equivalent to relation 1, therefore option 1 is correct.

2. A 180 rotation about the origin, then a translation 2 units right, and then a reflection over the x-axis is defined as (x,y)-----(-x+2,y)

It is equivalent to relation 1, therefore option 2 is correct.

3. A reflection over the y-axis and then a translation 2 units left is defined as  (x,y)-----(-x-2,y)

It is not equivalent to relation 1, therefore option 3 is incorrect.

4. A 180 rotation about the origin, then a translation 2 units left, and then a reflection over the x-axis is defined as (x,y)-----(-x-2,y)

It is not equivalent to relation 1, therefore option 4 is incorrect.

5. A reflection over the x-axis and then a translation 2 units right is defined as (x,y)-----(x+2,-y)

It is not equivalent to relation 1, therefore option 5 is incorrect.]

6. A reflection over the x-axis and then a translation 2 units left is defined as (x,y)-----(x+2,-y)

It is not equivalent to relation 1, therefore option 6 is incorrect.

So for that reason im pretty sure the correct options are 1 and 2.

6 0
3 years ago
A number is k units to the left of 0 on the number line. Describe the location of its opposite
MrMuchimi


--(-k)------------(-3)-------(-2)------(-1)-----0----(+1)---(+2)---(+3)---------------(+k)--

You will notice that all values on the left of "0" are negative and positive on the right .
Moreover
+1 is symmetric to -1 about "0"
+2 is symmetric to -2 about "0"
+3 is symmetric to -3 about "0"

and +k is symmetric to -k about "0"
So the opposite of -k is +k and it's symmetric of -k vs."0"

4 0
4 years ago
The figure below shows two parallel lines cut by a transversal:
lubasha [3.4K]

Answer:

"They add up to 180 degrees, because they are a pair of supplementary angles"

Step-by-step explanation:

When parallel lines are cut by transversal, it creates vertical angles (opposite of each other) that are equal AND also supplementary angles (that are adjacent to each other and fall in one line). They add up to 180 degrees.

Looking at the figure, we see angle 1 and 2 fall in one line which is 180 degrees. Thus, angles 1 and 2 are supplementary, they add up to 180 degrees.

The correct choice is "They add up to 180 degrees, because they are a pair of supplementary angles"

8 0
3 years ago
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