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3 years ago

-8( -8x -6) = -6x - 22

2 answers:

8 0

Simplify both sides of the equation, add 6x to both sides, subtract 48 from both sides, then divide both sides by 70. Your answer would be x= -1

Kipish [7]3 years ago

6 0

The answer is x = -1.

First, you use the distributive property and multiply -8 with what's in parentheses on the left side. I'll number the steps below.

1.) -8 times -8x is 64x. Then you take -8 times -6 and get 48.

2.) Now your equation is 64x + 48 = -6x - 22.

3.) Then, you subtract add 6x to the right side, which cancels out the negative, and you add it to the left side getting the equation, 70x + 48 = -22.

4.) Subtract -48 from the left side and add it to the right, getting 70x = -70.

5.) Lastly, you can now divide 70x on the left side, and divide it by 70 on the right and 70 / 70 is equal to 1.

So X = -1.

I hope that was helpful!

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3 years ago

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3 years ago

Read 2 more answers

A store was keeping track of how many bottles of hand sanitizer and soap bars were sold last week. A bottle of hand sanitizer co

agasfer [191]

Answer:

Hand sanitizer=135 bottles

Bar soap=83 bottles

Step-by-step explanation:

Let x represent the hand sanitizer and y the sop.

-Our problem can be expressed as:

$x+y=218\ \ \ \ \ ...i\\\\4.25x+2.15y=752.20\ \ \ \ \ ...ii$

#Make x the subject in i then substitute in ii to solve;

$x=218-y\\\\\therefore 4.25(218-y)+2.15y=752.20\\\\926.5-4.25y+2.15y=752.20\\\\174.3=2.1y\\\\y=83\\\\x=218-83=135$

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3 years ago

Set X consists of 100 numbers. The average (arithmetic mean) of set X is 10, and the standard deviation is 4.6. Which of the fol

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Answer:

E. 10 and 10

Step-by-step explanation:

Standard Deviation is the square root of sum of square of the distance of observation from the mean.

$Standard deviation(\sigma) = \sqrt{\frac{1}{n}\sum_{i=1}^{n}{(x_{i}-\bar{x})^{2}} }$

where, $\bar{x}$ is mean of the distribution.

Here, since standard deviation is the ratio of the distance from the mean and sample size. So for decreasing the standard deviation we should keep numerator constant and increasing the denominator.

This can be only possible in option (E).

Hence, only Option (E) is correct.

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3 years ago