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mamaluj [8]
2 years ago
11

What is -2x-y=-9. 5x-2y=18

Mathematics
1 answer:
Vaselesa [24]2 years ago
7 0

Answer:

I put them in slop so

1) y= -2x+9

2) y=5/2x -9

it would help to say what u need to solve it for but hoped it helped

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Translate the sentence into an equation.
gayaneshka [121]

4B+6=8

Step-by-step explanation:

4B+6=8

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6 0
3 years ago
B-4/6 how do I solve this? It's hard
serious [3.7K]
                                     
if you are looking for.... 2(B-4)= (6)b
                                     2b - 8 = 6b
                                     2b - 6b= 8
                                     -4b=8
                                      so b= -2

the question is b-4 divided by 6 equals b/2

8 0
2 years ago
A bag contains five white marbles and five black marbles. What is the probability of drawing a white marble, not replacing it, a
Lelu [443]

~ ANSWER=1/2 ~

Simple probability is found by counting all the results which fit requirements and dividing by all possible results.

To find probability of two results in a row, multiply chance of first result by chance of second result.

Since you are replacing the marble before the second draw, we don’t have to figure out the various changes in odds for the different possible first draws. It’s just that simple.

There are 5 white marbles

There are 4 red marbles

There are always 20 marbles in all

5/20*4/20=1/4*1/5=1/20 or 1/2

By coincidence, the same as the chance of drawing the white marble in one draw.

6 0
2 years ago
ANSWER TO BE NAMED BRAINLIEST GET 20 PTS AND GET A THAN K YOU
zubka84 [21]

Answer:

C) The scale factor is 2

Step-by-step explanation:

The side length of the bigger pentagon is 2 times bigger than the smaller one, so C is correct.

6 0
3 years ago
If sin(2x) = cos(x + 30"), what is the value of x?<br> 20°<br> 30°<br> 500<br> 1100
ivanzaharov [21]

Answer:

2x=(x+30)

2x+x=30

3x=30

x=30÷3

x=10

7 0
3 years ago
Read 2 more answers
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