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wariber [46]
3 years ago
11

Which expression is equivalent to 2 (a + 2 b) minus a minus 2 b?

Mathematics
2 answers:
algol [13]3 years ago
8 0

Answer:

a+2b

Step-by-step explanation:

2(a+2b) -a-2b

2a+4b-a-2b

a+2b

ANTONII [103]3 years ago
5 0

Answer:

d

Step-by-step explanation:

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Which of the following systems of linear inequalities is represented by the solution graphed below?
sattari [20]
Answer is A, y us smaller/equal to 2 and y is smaller/equal to X
5 0
3 years ago
Solve the inequality x - 3 > 7
Katen [24]

Answer:

x > 10

Step-by-step explanation:

Given

x - 3 > 7 ( add 3 to both sides )

x > 10

4 0
3 years ago
Read 2 more answers
6) What is 13% of 33.39?
icang [17]

Answer:

1. We assume, that the number 33.39 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 33.39 is 100%, so we can write it down as 33.39=100%.

4. We know, that x is 13% of the output value, so we can write it down as x=13%.

5. Now we have two simple equations:

1) 33.39=100%

2) x=13%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

33.39/x=100%/13%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 13% of 33.39

33.39/x=100/13

(33.39/x)*x=(100/13)*x       - we multiply both sides of the equation by x

33.39=7.6923076923077*x       - we divide both sides of the equation by (7.6923076923077) to get x

33.39/7.6923076923077=x

4.3407=x

x=4.3407

now we have:

13% of 33.39=4.3407

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Solve (x+y) if x=-1/2 and y=-3
bixtya [17]

Answer:

-3\frac{1}{2}

Step-by-step explanation:

Solve

(x+y)

For x=-1/2 and y=-3

substitute the value of x and the value of y in the expression above

x+y=(-\frac{1}{2})+(-3)

Remember that

(+1)(-1)=-1

so

x+y=-\frac{1}{2}-3=\frac{-1-6}{2}=-\frac{7}{2}

Convert to mixed number

-\frac{7}{2}=-\frac{6}{2}-\frac{1}{2}=-3\frac{1}{2}

7 0
3 years ago
-3=x/-9 please tell me how to solve this I’m way behind and trying to learn thank you :)
snow_tiger [21]

-3 = x/-9

To make this easier, I'll put it in normal numbers

(-3 = x/-9) -1

3 = x/9

Multiply both sides by nine to take out the division.

27 = x

Hope that this helped!

8 0
2 years ago
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