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Kryger [21]
3 years ago
11

Equivalent expressions for 7x-6x+4x

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
5 0

Answer:

<h3>5x</h3>

Step-by-step explanation:

7x-6x+4x ← <em>(Add and subtract elements to the numbers from left to right.)</em>

<em />

7-6+4

PEMDAS- (Parenthesis, Exponents, Multiply, Divide, Add, and Subtract) from left to right.

7-6+4 ← (Add & subtract.)

7-6=1

1+4=5

= 5x

5x, which is our answer.

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Please help me asap!!
Bess [88]

Answer:

x = 14

Step-by-step explanation:

The polygon given has 6 sides

Sum of interior angles of a 6-sided polygon = 180(n - 2)

substitute n = 6 into 180(n - 2)

Sum of the polygon = 180(6 - 2) = 720°

Thus:

10x + 8x - 16 + 12x - 8 + 7x + 2 + 9x + 4 + 6x + 10 = 720

Add like terms

52x - 8 = 720

52x = 720 + 8

52x = 728

x = 728/52

x = 14

3 0
3 years ago
What is x to the power of 3 divided by x to the power of -5
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X to the power of 8
When dividing powers, you subtract the "small numbers". When multiplying, you add them. 3-(-5) = 8

Hope it helps!
4 0
3 years ago
Susan deposited $275 in a savings account that earns simple interest at a rate of 4.5%. She made no additional deposits and no w
Tresset [83]

Answer: 12 years

Step-by-step explanation:

6 0
2 years ago
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Natalia begins to find the mean absolute deviation of this data set. She finds the mean of the data and then finds the distance
s2008m [1.1K]
Hello!

To calculate mean absolute deviation, you find the mean, find the distance between each data point and the mean, add up those distances, and divide by the number of data points.

In this scenario, after Natalia finds the distances, she must add them all up and then divide by the number of data points.

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Find all integers $n$ for which $\frac{n^2+n+1}{n-1}$ is an integer.
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n-1=1\implies n=2
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7 0
3 years ago
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