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jeka57 [31]
3 years ago
11

How do you solve: 2(b - 5) + 7b-4

Mathematics
2 answers:
Blizzard [7]3 years ago
8 0

Answer:

9b-14

Step-by-step explanation:

2(b-5)+7b-4

First you want to do what is in the parenthesis:

2 times b   2 times 5

The two is on the outside of the parenthesis which means you multiply it times the variable and the number.

Simply: 2b-10+7-+4

Now, you want to break the equation down. Both 7 and 2 have 'b' so you can add the two together.

2b+7b=9b

-10 and -4 can be put together. 4 is negative so you would subtract the two numbers.

-10-4= -14

Next, you want to take the two numbers 9b and -14 and put them into equation form.

9b-14

<u>I hope this helped! </u>

Alinara [238K]3 years ago
4 0
2(b-5)+7b-4
Solve 2(b-5) to get 2b-10
Combine your like terms 2b-10+7b-4
Solve 2b+7b to get 9b
Solve -10+(-4) to get -14
So your answer is
9b-14

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Answer:

Mean is greater

Step-by-step explanation:

For a skewed distribution, then the tail is longer to one side from the center than to the other. In a right skewed distribution, the tail is longer to the right.

When a distribution is skewed, the mean will be closer to the tail Than the median. Therefore. For a right skewed histogram, the mean is closer to the tail of the histogram and hence closer to the right. Once this happens, values closer to the right of a distribution are higher (number line). Thus the mean will be greater than the median.

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Step-by-step explanation:

First, let's define the symbols used:

a < x              (this means that a is strictly smaller than x)

a > x              (this means that a is strictly larger than x)

a ≤ x              (this means that a is smaller than or equal to x)

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Now we have the statement "x is no less than 0"

Then x can be equal to zero, or larger than zero, but never smaller than zero.

Looking at the symbols above, we know that we need to use:

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Answer:

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Step-by-step explanation:

Note that

= a:b: c = 7:8:9

We have to find the sum of the proportion

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