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vovangra [49]
3 years ago
11

Find the solution to the following system using substitution or elimination:​

Mathematics
1 answer:
raketka [301]3 years ago
4 0

Answer:

B) (3,1)

Step-by-step explanation:

y = -2x + 7

y = 3x - 8

3x - 8 = -2x + 7

combine like terms:

5x = 15

divide both sides of the equation by 5:

x = 3

y = 3(3) - 8 = 1

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I need help solving this
Kruka [31]

Answer: y = -x + 5

Step-by-step explanation:

      A slope-intercept equation is in the form y = <em>m</em>x + <em>b</em> where <em>m</em> is the slope and <em>b</em> is the <em>y</em>-intercept. Since we are given the slope, we will plug it in with the point they gave us, and solve for <em>b</em>.

y = <em>m</em>x + <em>b</em>

(1) = (-1)(4) + <em>b</em>

1 = -4 + b

5 = b

      Lastly, we will write our equation by substituting <em>m</em> with -1 and <em>b</em> with 5.

y = <em>m</em>x + <em>b</em>

y = -1x + 5 or y = -x + 5

<em>    Read more about </em><em>slope-intercept equations</em><em> here:</em>

<em>brainly.com/question/27497166</em>

6 0
2 years ago
Help math fractions <br> 3 2/3 - 1 11/12=
Allisa [31]

Answer:

i wrote this as a decimal so um i hope this at least helps :). 1.75

Step-by-step explanation:

4 0
3 years ago
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-18.3 = b + -8.3<br> b =
Sauron [17]

Answer:

Here,

-18.3=b+ -8.3

-18.3+8.3=b

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3 0
3 years ago
F(x) ≥ -(x+4)^2<br>axis of symmetry: <br>vertex:
BlackZzzverrR [31]

Answer:

so the vertex is (-4, 0) and the axis of symmetry is x=-4

Step-by-step explanation:

f(x) ≥ -(x+4)^2

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this is in the form

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where (h,k) is the vertex and h is the axis of symmetry

so the vertex is (-4, 0) and the axis of symmetry is x=-4

6 0
2 years ago
A spinner has 4 equal areas. They are colored yellow blue green and red. What is the probability of landing on each color after
hammer [34]

Answer: you have a 25% or 1/4 probability

Step-by-step explanation:

7 0
3 years ago
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