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BlackZzzverrR [31]
3 years ago
8

5x+4y=-12 3x - 4y=-20 What is the solution?

Mathematics
1 answer:
velikii [3]3 years ago
4 0
Is it too question??
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Hi I also need help with this please and thank you
OverLord2011 [107]

Answer:

Step-by-step explanation:

y=mx+b where m=slope and b=y intercept

m=(y2-y1)/(x2-x1)

m=(-2-4)/(2+1)

m=-2 so far we have the slope

y=-2x+b, using point (2,-2) we can solve for b, the y intercept

-2=-2(2)+b

-2=-4+b

2=b so we have our line

y=-2x+2, slope is -2 and y intercept is 2

8 0
3 years ago
does anyone have the unit 3 expressions, equations, and inequalities unit test: B answer key. i really really need it. this is a
Vilka [71]

Answer:

sorry but you can write question instead of writing that because some of you may know that but others donot knew it

5 0
3 years ago
A swimming pool fills 1/10 of the pool in 1/5 of an hour. At this rate, how long does it take to fill up the pool? Show ALL your
Cloud [144]

Answer:

i got 20 hours

Step-by-step explanation:


7 0
3 years ago
MULTIPLE CHOICE PLS ANSWER
zubka84 [21]

Answer:

Option.B

Step-by-step explanation:

Its because if you add these two angles you get a supplementary angle or 180°

Using this we can form an equation to find the value of x.

(Hope this answer helps :))

(And is this question from Khan Academy?)

5 0
3 years ago
You don’t even have to give the answer just please explain
jenyasd209 [6]

Answer:

1/2

Step-by-step explanation:

remember that the formula for the slope of a line is

m=\frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

where m is the slope, and the x and y variables are the x-y coordinates of two points. Choose two points on the line:

Point 1 : (-1,3) and Point 2 : (1,4)

Plug in your values:

m=\frac{4-3}{1-(-1)}

m=\frac{1}{2} \\

So the slope of this line is 1/2 !

3 0
3 years ago
Read 2 more answers
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