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arsen [322]
4 years ago
9

What value in the replacement set is a solution to this equation? 3(n+7)=48. Replacement set {8,9,10.

Mathematics
2 answers:
Studentka2010 [4]4 years ago
6 0
So if the 3 is on the outside of the parenthesis 3( it means you have to multiply 3 times the numbers inside the parenthesis. 3 X n+7 + 3n + 21. hope this hint helps. 

ololo11 [35]4 years ago
4 0
3(n+7)=48 your solution is 9
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4 0
4 years ago
What is an equation for the line parallel to y = -3x – 5 that contains (-1, 8)?
jeka57 [31]
<h3>Answer: y = -3x+5</h3>

slope = -3

y intercept = 5

==================================================

Explanation:

The given line is in the form y = mx+b, so the slope is m = -3

Any parallel line to this one will also have the same slope, but a different y intercept.

Plug (x,y) = (-1,8) and m = -3 into y = mx+b so we can find new y intercept.

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

y = mx+b

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5 = b

b = 5

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5 0
3 years ago
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