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BartSMP [9]
3 years ago
14

Find the solution to the system 4x - y = -12 and -x - y = 3

Mathematics
2 answers:
RoseWind [281]3 years ago
7 0

Answer:

x = -3

y = 0

Step-by-step explanation:

4x - y = -12

-x - y = 3

__________--

5x = -15

x = -15/5

x = -3

-x - y = 3

-(-3) - y = 3

3 - y = 3

-y = 3 - 3

y = 0

rjkz [21]3 years ago
6 0

Answer:

Equation Form :  x=-3   y =0      

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PLEASE HELPPP MEEEEEEEEEEE I DK THIS-
Julli [10]

Answer:

FOr the first one you can do:

y= -x +4

y= -x+2

y = -x

y= -x-2

y = x-4

Step-by-step explanation:

I'll do the second one in a different answer use these for now.

8 0
2 years ago
Find the slope of ther line that goes through the points (-9,-4) and (-3,-6)
sleet_krkn [62]

Answer:

slope = - \frac{1}{3}

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 9, - 4) and (x₂, y₂ ) = (- 3, - 6)

m = \frac{-6+4}{-3+9} = \frac{-2}{6} = - \frac{1}{3}

5 0
3 years ago
If 18 cupcakes cost $44.64. How much would 20 cupcakes cost?
Nonamiya [84]
20 cupcakes will cost $49.60. You divide 44.64 by 18 and get 2.48. Multiply 2.48 by two getting 4.96. Then you add 44.64 and 4.96 together and get your answer.
5 0
3 years ago
Read 2 more answers
A rectangle has a perimeter of 68 inches. Its length is 2 inches less than 3 times its width. What are the length and width of t
Evgesh-ka [11]

2(3x-2+x)=68 in

thats all i know, sorry

7 0
3 years ago
Find an ordered pair to represent vec t in equation vec t =-8 vec u if vec u=(-1,4) and vec v = (3, -2)
Luda [366]

Answer:

Step-by-step explanation:

B

8 0
3 years ago
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