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2 years ago

(8x+1)+(4x+11)=180°solve for x

1 answer:

3 0

You would combine like terms, so it would become 12x +12=180 Then you would subtract 12 from both sides so that the x is on one side and the just plain numbers are on the other side. So your equation now is 12x=168 You then at this point would divide both sides by 12 to get the x alone. Your final answer then would be x=14

Hope this helped Let me know if you have any questions or if you need anymore help. I am always here if you need someone

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X+2y=12 3x-10y = 0 y=? x=?

sergeinik [125]

$~~x+2y=12 \\ ~~3x-10y=0 \\
~------ \\~ -3/x+2y=12 \\ ~~~~~~3x-10y=0 \\ ------- \\ -3x-6y=-36 \\ ~~~~3x-10y=0 \\ +------- \\ ~~~~-16y=-36 \\ \\ ~~~~y= \frac{36}{16}\rightarrow \boxed{\frac{9}{4}} \\ \\$
$x+2. \frac{9}{4} =12 \\ \\ x+ \frac{18}{4} =12 \\ \\ \frac{4x+18}{4} =12 \\ \\ 4x+18=48 \\ 4x=30 \\ \\ x=\boxed{\frac{15}{2}}$

3 0

2 years ago

Read 2 more answers

Can you construct a triangle that has side lengths 1 cm, 15 cm, and 15 cm? yes or no ?

lana66690 [7]

Yes, I believe you can

4 0

3 years ago

Read 2 more answers

You’re help Is greatly appreciated!! I will mark BRAINLIEST as well

Akimi4 [234]

Answer:

1. -4/7

2. 4/3

3. x^2 + 16x + 63

4. x^2 + 19x + 90

Step-by-step explanation:

1. (1, 8) and (8, 4)

slope = m = (8 - 4)/(1 - 8) = -4/7

2. (2, 4) and (5, 8)

slope = m = (8 - 4)/(5 - 2) = 4/3

3. (x + 9)(x + 7) =

= x^2 + 7x + 9x + 63

= x^2 + 16x + 63

4. (x + 10)(x + 9) =

= x^2 + 9x + 10x + 90

= x^2 + 19x + 90

6 0

2 years ago

A student council sold 856 copies of a school yearbook, four fifths of the students at the school bought a copy , how many stude

kumpel [21]

Answer:

I am guessing about 150 - 200 students did not buy a yearbook.

Step-by-step explanation:

First let's assume that there are 1,000 or so students in the school. 856 would be a little over 4/5 of 1,000 just as 8 would be 4/5 of 10.

8 0

3 years ago

Darnelle works for a real estate agent. She receives a basic wage of $250 per week plus commission on sales. The rate of commiss

aksik [14]

Answer:

For option A she would receive $1,690. For house B, she would receive $2,070 for a weeks worth of pay.

Step-by-step explanation:

Please mark Brainliest if this helped :)

8 0

3 years ago