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Dvinal [7]
3 years ago
5

Help me plz with this 4x-3=15

Mathematics
2 answers:
prohojiy [21]3 years ago
7 0

Answer:

18/4

Step-by-step explanation:

4x -3 = 15

4x = 15+3

4x = 18

x = 18/4

Y_Kistochka [10]3 years ago
3 0

Answer:

4.5

Step-by-step explanation:

add 3 to 15= 18

18/4= 4.5

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Find the slope of the line that passes through (4,2) and (9,1)?
pshichka [43]

Answer:

The slope of the line is \displaystyle -\frac{1}{5}.

Step-by-step explanation:

We are given two coordinate points:

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We can use the rise-over-run formula to solve for the slope of the line.

\displaystyle \text{slope} = \frac{\text{rise}}{\text{run}}\\\\\text{slope} = \frac{y_2-y_1}{x_2-x_1}

However, we firstly need to name our coordinate points.

In math, we can label our coordinates using the following label system:

(x_1, y_1), (x_2, y_2)

Therefore, we can also label our coordinates as such:

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Now, we can supply these values into the formula and solve for our slope, or a better known variable, <em>m</em>.

\displaystyle m = \frac{1 - 2}{9 - 4}\\\\m = \frac{-1}{5}\\\\m = -\frac{1}{5}

Therefore, our slope is \displaystyle -\frac{1}{5}.

8 0
3 years ago
Read 2 more answers
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