4 years ago

What is -5(7x + 2) =200

Mathematics

2 answers:

blondinia [14]4 years ago

3 0

Your answer is going to be X=-6

olchik [2.2K]4 years ago

3 0

Answer:

x = 15.7

Step-by-step explanation:

-5(7x + 2) = 200

1) According to PEMDAS, solve/combine like terms within the parenthesis first; however, since we can't do that, distribute -5 to 7x and +2:

-35x - 10 = 200

2) Get x by itself by dividing both sides by -35:

-35x - 10 200

_______ = _____

-35 -35

x - 10 = 5.7

3) Get x by itself by adding 10 to both sides:

x - 10 + 10 = 5.7 + 10

x = 15.7

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Two points located on are J(1,-4) and K(-2,8). What is the slope of ?

vodka [1.7K]

Answer:

-4

Step-by-step explanation:

The slope is usually a function of the differences in y divided by the differences in x, and it can be described in the following equation,

$Slope = \frac{y_{1} - y_{2} }{x{1} - x{2}}$ (1)

We can select any of the two points to be our first point, let's say, J(1,-4) is point 1, so J (x1,y1). In other words, $x_1 = 1 and y_1 = -4$ and by the same way, for K(-2,8). Therefore, $x_2 = -2 while y_2 = 8$ . By substituting these values in equation 1, we can deduce the following