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Soloha48 [4]
3 years ago
10

Solve the equation below for y. 8x+4y=20

Mathematics
2 answers:
stira [4]3 years ago
8 0
4y=20-8x
Y=20-8x/4
Y=5-2x
tia_tia [17]3 years ago
4 0
The final answer is Y= -2x + 5

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Pls tell the answer for 50 points!
White raven [17]

Answer:

7*11^5

Explanation:

(the photo)

5 0
2 years ago
Solving systems by Substitution Homework y=x+4 y=x-3​
zvonat [6]
There is no solution for this equation since they have the same slope, x/1. The only difference between these two is that their y intercepts are different meaning that they will be parallel lines that will never intersect among one other. For example, think of it as two separate lines that are have the same slope and never gain more distance/units from one another.


Solve:

To solve, you have to get one of this equations into a Ax+By=C equation form, standard equation. Let’s change y=x+4 into a standard equation.

We have to get x and y together and 4 as C.
So let’s subtract x from both sides;

y=x+4
-x -x
————————
-x+y=4

This is a standard equation.

Now let’s substitute.

take the standard equation and plug in y which is x+4 since there is a equation meaning it’s y=x+4


-x+(x+4)=4


Let’s simplify this mess.


-x+x equals 0. So we are left with 4=4.

Subtract 4 from both sides and we get 0=0



This means there is no solution. Hoped this helped.
8 0
3 years ago
If mZDEC = (12x - 3), mZBCE =
kati45 [8]

Answer:

Step-by-step explanation:

12x - 3 = 180 - (7x - 26) supplementary angles

19x = 209

   x = 11

m∠DEC = 12(11) - 3 = 129°

m∠BCE = 7(11) - 26 = 51°

M∠ADE = 129 - 72 = 57°  exterior angle rule

m∠EDB = 180 - 57 = 123° supplementary angles

m∠DBC = 57° corresponding angle to ADE

3 0
2 years ago
Given the circle below, identify each choice that is a central angle.
Taya2010 [7]

can you upload a picture

3 0
2 years ago
-37= n/23<br> what is n?
Vlada [557]
-37 = <u>n
</u>       23
<u>
</u>to solve for n, undo what is happening to the n. if the n is being divided by 23 to get -37, then multiply both sides by 23 to figure out what n is. 
<u>
</u>-37 * 23 = <u>n * 23 
</u>                   23
<u>
</u>-851 = n
3 0
2 years ago
Read 2 more answers
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