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Alona [7]
3 years ago
14

Can someone simplify 25-4-9x+2x ?

Mathematics
2 answers:
Sloan [31]3 years ago
6 0

Answer:

21-7x

Step-by-step explanation: gather like terms

25-4=21   -9x+2x=-7x

kondor19780726 [428]3 years ago
6 0

Answer:

21-7x

Step-by-step explanation:

you have to basically combine like terms. so you would then have 25-4 and then -9x=2x, which is how i got 21-7x

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Solve the following system: y = x 3 4x y = 18 (6, 3) (3, 6) (â’3, 6) (3, â’6).
Nastasia [14]

The solution of the given equation is (3,6). The correct option is B.(3,6)

<h3>Given equations,</h3>

y=x+3.......(1)\\4x+y=18.....(2)

<h3>How to solve the equations?</h3>

putting the value of y from equation (1) in equation (2) , we get

4x+x+3=18\\5x=18-3\\5x=15\\x=3

substitute the value of x=3 in equation (1) we get,

y=3+3\\y=6

Hence, the solution of given equation is (3,6).

So, the correct option is B.

For more details about the system of equations, follow the link:

brainly.com/question/12895249

4 0
2 years ago
Triangle TUV was dilated to create triangle T'U'V' using point A as the center of dilation. What is the scale factor of the dila
Tomtit [17]
A dilation is a transformation, with center O and a scale factor of k that is not zero, that maps O to itself and any other point P to P'. The center O is a fixed point, P' is the image of P, points O, P and P' are on the same line.

Thus, a dilation with centre O and a scale factor of k maps the original figure to the image in such a way that the<span> distances from O to the vertices of the image are k times the distances from O to the original figure. Also the size of the image are k times the size of the original figure.

In the dilation of triangle TUV</span>, It is obvious that the image <span>T'U'V' is smaller than the original triangle TUV and hence the scale factor is less than 1.

</span>The ratio of the distances from A to the vertices of the image T'U'V'  to the distances from A to the original triangle TUV is the scale factor.

The scale factor = 3.2 / 4.8 = 2/3
8 0
3 years ago
Read 2 more answers
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tiny-mole [99]

Answer:

y=5x+42

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(7-(-3))/(-7-(-9))

m=(7+3)/(-7+9)

m=10/2

m=5

y-y1=m(x-x1)

y-(-3)=5(x-(-9))

y+3=5(x+9)

y=5x+45-3

y=5x+42

6 0
3 years ago
I have 93, 80 and 94 my homework is worth 10% so what us my grade?
Minchanka [31]
I think about 26.7  
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5 0
3 years ago
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$200 at 7% per year for 9 months
Ganezh [65]
the answer is 126
200 divided by 100 = 2
2 x 7= 14
14 x 9 = 126
4 0
3 years ago
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