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Irina-Kira [14]
3 years ago
7

12 more than 8.2 times n

Mathematics
1 answer:
Oksana_A [137]3 years ago
6 0

12+8.2n, this is the answer

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Of the following points, name all that lie on the same horizontal line?
ArbitrLikvidat [17]
I just graphed all 4 and didn’t see where any are on the same horizontal line. I might be missing something.
7 0
3 years ago
PLEASE HELP ASAP! BRAINLIEST AND 5 STARS TO BEST/CORRECT RESPONSE(S).
Lunna [17]

Answer:

b). (0, 4)

if you need an explanation, comment, and I will put one in for you :)

7 0
1 year ago
The interior angle sum of a convex polygon is 330, how many sides does the polygon have?
MissTica

let the number of sides be n.

Thus,

(n-2)x180=330

n-2=1.83

n=3.83

Rounding off we have, n=4.

Thus the total number of side is 4.

4 0
1 year ago
Please help, please help
zmey [24]
Answers:
x=22
x+4=26
6x=132

Explanation:
We learned from the question that all of the angles in a triangle add up to 180 degrees.

180=angle+angle+angle

When we plug in the values that the question gives us for the angles, we get this equation:

180=x+6x+(x+4)

After solving this equation, we get 22 as the value of x (The process of solving that equation is in the picture attached).

To solve for (x+4), we plug in the value of x, which is 22 and add 4.

(x+4)
=(22+4)
=26

And finally, to solve for 6x, we plug in 22 again:

6x
=6*22
=132

Hope this helps!

7 0
3 years ago
Serena wants to solve the following system of equations in the most efficient way.
Marianna [84]

Answer:

Serina should have solved for x in the second equation because it has a coefficient of 1.

Step-by-step explanation:

we have

2x+3y=18 ----> equation A

x+7y=31 ---> equation B

we know that

To solve the system of equations in the most efficient way, solve for x equation B and then substitute the value of x in equation A

so

x=31-7y ----> equation C

substitute equation C in equation A

2(31-7y)+3y=18

solve for y

62-14y+3y=18\\11y=62-18\\11y=44\\y=4

Find the  value of x

substitute the value of y in the equation C

x=31-7(4)=3

The solution is (3,4)

therefore

Serina should have solved for x in the second equation because it has a coefficient of 1.

3 0
3 years ago
Read 2 more answers
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