A number multiplied by 4 is -20

2 answers:

7 0

-5 would be the answer. 4 times -5 would equal -20 because 4 times 5 equals 20 and a positive number times a negative number equals a negative number. (opposite signs equal negative, same signs equal positive)

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Karolina [17]3 years ago

6 0

4x = -20

divide by 4 on both sides (4/4 cancels itself out) (-20 / 4 = -5)

x = -5

4 (-5) = -20

-20 = -20

<u>The answer is -5</u>

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Delvig [45]

$\boxed{k=4}$

<h2>Explanation:</h2>

We know that the slope of a line is given by:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}} \\ \\ Where: \\ \\ (x_{1},y_{1}) \ and \ (x_{2},y_{2}) \ are \ points \ that \ lie \ on \ the \ line \\ \\ \\ Here: \\ \\ (x_{1},y_{1})=(-2,k) \\ \\ (x_{2},y_{2})=(2,0) \\ \\ m=-1 \\ \\ \\ -1=\frac{0-k}{2-(-2)} \\ \\ -1=\frac{-k}{4} \\ \\ -k=4(-1) \\ \\ \boxed{k=4}$