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ioda
3 years ago
11

Solving systems of equations algebraically. 6x + 8y = -22 y = -5 And SHOW YOUR WORK!!!!

Mathematics
1 answer:
BigorU [14]3 years ago
4 0

Answer:

x = 3

y = -5

Step-by-step explanation:

Since you have the value of y already, just plug it into the equation, like so:

6x + 8y = -22

6x + 8(-5) = -22

6x - 40 = -22

<em><u>Add 40 to both sides:</u></em>

6x - 40 = -22

    + 40  + 40

___________

6x = 18

<em><u>Finally, divide both sides by 6:</u></em>

6x = 18

x = 3

So now you have, x = 3 and y = -5.

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suppose there are two types of tickets to a show advance and same day. Advance tickets cost $25 and same dayt costs $15 for one
DiKsa [7]

Answer:

Advanced tickets=30 Day =20

Step-by-step explanation:

Put them into equations:

x=advanced

y=day

x+y=50

25x+15y=1050

to make it simpler re-arrange x+y=50

x=50-y

Then substitute into 25x+15y=1050

25(50-y)+15y=1050

Expand

1250-25y+15y=1050

Rearrange

25y-15y=1250-1050

Work the above out

10y=200

y=20

and then

20+x=50

meaning....

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showing Advanced tickets=30 Day =20

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3 years ago
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Answer:

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Step-by-step explanation:

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6 0
3 years ago
Find the slope and the y-intercept of the line.
Setler79 [48]

Answer:

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y-intercept <em>b</em> = -5

General Formulas and Concepts:

<u>Algebra I</u>

Slope-Intercept Form: y = mx + b

  • m - slope
  • b - y-intercept

Step-by-step explanation:

<u>Step 1: Define</u>

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<u>Step 2: Break Function</u>

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