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belka [17]
3 years ago
11

What is the solution to this system of linear equations y-x=4 and y+2x=1

Mathematics
1 answer:
DerKrebs [107]3 years ago
8 0
Good luck.............................

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I need help on this problem<br> 20 ÷ (4 - (10 - 8))
vlada-n [284]

Answer: 10

Explanation:

20 ÷ (4- (10-8))

First off, you work your way outward. You start the furthest in, then head your way out. (10 - 8) is the furthest in, and 10 - 8 = 2. So now your equation looks like this:

20  ÷ (4 - 2)

Next, you do the (4 - 2) which equals 2. So now, the equation is this:

20  ÷ 2

So you finish it up with 20  ÷ 2 which equals 10.

Hope I made sense! :D

8 0
4 years ago
Write a equation in the form y=mx+b for the line which contains the points (-8,20) and (-4,0)
marin [14]
M = 20/-4 = -5

Sub in (-4,0): 20+b = 0 ->b = -20

So, y = -5x - 20
3 0
4 years ago
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I have a question where I need to add the mixed numbers 5 3\8 and 3 2\5 using a model and number line I have absolutely no idea
VMariaS [17]

Answer:

8\frac{31}{40}

Step-by-step explanation:

In representing mixed numbers on a number line, we need first to pay attention to the denominators. Here, denominators are 8 and 5, their least common multiple is 40, so, we will need to cut up space between two numbers on the number line on 40 pieces. Also, we have 5 and 3 wholes at these mixed numbers, so, our answer is going to be  greater than 8.

We will cut the space between 8 and 9 on a number line on 40 pieces, and we will add \frac{3}{8} and \frac{2}{5} and get :

\frac{3}{8} +\frac{2}{5} = \frac{15}{40} +\frac{16}{40} =\frac{31}{40}

So, on  a number line between 8 and 9 we need to count 31 out of 40 pieces and that is the result, 8 wholes and \frac{31}{40}.

3 0
4 years ago
Solve the proportion: 12/R = 5/60
salantis [7]
I was to tired to write it down

6 0
3 years ago
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Area is expressed in<br> A) pounds. <br> B) cubic units. <br> C) square units. <br> D) linear units.
m_a_m_a [10]
Square units, C. Hope this helps

3 0
3 years ago
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