Mathematics: Twice a number added to 6 is 4

Twice a number added to 6 is 4 - id6414445038, karolmolina49

randall10

26.09.2021

Solution:

Let the number be x.

Therefore, by the problem

$2x + 6 = 4 \\ = 2x = 4 - 6 \\ = 2x = - 2 \\ = x = \frac{ - 2}{2} \\ = x = - 1$

The answer is -1.

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saintsfan2004

26.07.2021

The constant of proportionality is 30 feet per minute since for every minute the hiker ascends 30 feet.

The slope is the same thing, 30 or 30 feet per minute.

Since the line includes the origin, it's just

y = 30 x

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