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enot [183]
4 years ago
6

What is 2x + 30 = 186 First Answer will get Brainliest

Mathematics
2 answers:
AlladinOne [14]4 years ago
8 0

Answer:

78

Step-by-step explanation:

2x + 30 = 186

2x=186-30

2x=156

x=156/2

x=78

vekshin14 years ago
4 0

2x+30=186

We move all terms to the left:

2x+30-(186)=0

We add all the numbers together, and all the variables

2x-156=0

We move all terms containing x to the left, all other terms to the right

2x=156

x=156/2

x=78

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PLEASE HELP ASAP I REALLY NEED HELP
madreJ [45]

for x=2....value will be 53

for x=7.....value will be 33

brainliest......

7 0
3 years ago
Which of the following lines goes downwards from left to right?
Delicious77 [7]
"Goes downwards from left to right" is basically saying that the slope of this line is negative. We go downhill from left to right. 

y = 2x+5 has a positive slope because m = 2 is the slope (b = 5 is the y intercept)
So choice A is out

Similarly choice B is eliminated as well because the slope is also m = 2

Choice C is false as well. The slope here is m = 2 (think of y = 2x as y = 2x+0)

The only choice with a negative slope is choice D. The slope is m = -2 

This is why the answer is choice D

Side Note: I'm using slope intercept form y = mx+b where m is the slope and b is the y intercept
3 0
3 years ago
If both rational numbers are negative then their sum is always
amid [387]

Answer: the sum is always positive

7 0
3 years ago
Read 2 more answers
John flips three pennies. • amy peeks and sees that the first coin lands heads. what is the probability of getting all heads?
attashe74 [19]
The sample space would be 27. The probability of getting 3 heads if you flip 3 pennies is 1/27.
Hope it helps! :)
4 0
3 years ago
(Many Points, Please help!)
julia-pushkina [17]

Answer:

<h2>B] (-10, 0)</h2>

Step-by-step explanation:

The x-intercepts are where the graph crosses the x-axis.

<em>(look at the picture).</em>

<em />

The y-intercepts are where the graph crosses the y-axis.

<em>(look at the second picture)</em>

<h3>(0, -2)</h3>

3 0
3 years ago
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