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irina [24]
2 years ago
7

Brainliest please help! :C

Mathematics
2 answers:
Nikitich [7]2 years ago
8 0

Answer: 21

Step-by-step explanation:

N-\left(2\cdot \:7\right)=7

\mathrm{Remove\:parentheses}:\quad \left(a\right)=a

N-2\cdot \:7=7

\mathrm{Multiply\:the\:numbers:}\:2\cdot \:7=14

N-14=7

\mathrm{Add\:}14\mathrm{\:to\:both\:sides}

N-14+14=7+14

\mathrm{Simplify}

N=21

____ [38]2 years ago
4 0

Answer:

N = 21

Step-by-step explanation:

N - (2 × 7 ) = 7                                {2 × 7 = 14}

N - 14 = 7

   + 14   +14

----------------------

N = 21

<em>Now we can substitute:</em>

21 - (2 × 7 )

21 - 14 = 7

<em>Hence, the answer is N = 21</em>

<em />

<u><em>~lenvy~</em></u>

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write the equaion of a line in slope-intercept form if the slope is 1/5 and the y-intercept is -9 explain please
faust18 [17]

Answer:

y = \frac{1}{5} x - 9

Step-by-step explanation:

The slope-intercept form is y = mx + b, where:

m = slope

b = y-intercept.

The slope (m) tells you the steepness of the line. It is the average rate of change which measures how the y-value changes for each one-unit change in the x-value. Hence, slope = \frac{rise}{run}.  So the given slope of 1/5 means that for every 1 unit change in the y-value, the x-value changes by 5 units (you go up 1 unit, and "run" 5 units to the right).

Next, the y-intercept is the point on the graph where it crosses the y-axis, and has the coordinates, (0, b). It is also the value of y when x = 0. Since you're given the y-intercept of -9, then that means that it is the y-coordinate of (0, <em>b</em>). So, it becomes (0, -9).

Now that we have our slope (<em>m </em>) = 1/5, and the y-intercept (<em>b </em>) = -9, we can write the equation of the line as:

y = \frac{1}{5} x - 9

(I'm also including a screenshot of the line where it shows the y-intercept of (0, -9) on the graph).  

Please mark my answers as the Brainliest if you find my explanations helpful :)

7 0
2 years ago
Suppose that y varies directly with x and y=12 when x=-2. What is x when y=-6<br> Please help me!!
hodyreva [135]

Answer:

x = 1 because when you multiply negative 2 by negative six you get twelve. when you multiply positive one by negative six you get negative six.

8 0
4 years ago
Please explain how to do this!
irakobra [83]
Ask ur mom she can knows
5 0
3 years ago
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