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vladimir2022 [97]
3 years ago
12

3x-2y=-39 and x+3y=31 solution using elimination

Mathematics
2 answers:
Kobotan [32]3 years ago
5 0
This is hard to write... I hope this makes sense to you...
3x-2y=-39
x+3y= 31
We want to use elimination therefor, we need to either get our x or our y to add together to get zero. 
To do this, we will multiply -3 to (x=3y=31) 
NEW EQUATION
3x-2y=-39 PLUS
-3x-9y= -93 Equals
Answer: -11y= -54 
y= 4.9
Plug in to solve for x (put new y in)
3x-2(4.9)=-39
x= -9.73 
IrinaVladis [17]3 years ago
5 0
Solving for x on 3x - 2y = -39:
First, we must add 2y to both sides.
3x - 2y + 2y = -39 + 2y
3x = 2y - 39
Next, we divide both sides by 3.
3x/3 = 2y - 39/3
Answer: 2/3y - 13

Solving for y on x+3y=31:
First, we must add -x to both of the sides.
x + 3y + -x = 31 + -x
3y = -x + 31
Next, we must divide both sides by 3. (Like last time.)
3y/3 = -x + 31/3
Answer: y = -1/3x + 31/3

I hope this helps! (And what you're looking for! :>)
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Answer:  three sets of value show 3 consecutive increases and they could be the intensities during fourth, fifth, and six visits:

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Explanation:


1) The program recommends a constant intensity for 3 visits, which is what the table shows:

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2) Hence, you have to determine the valid sets that meet the recommendation for the fourth, fifth, and six visits, which are the next three.


2) For the next three visits, the program recommensd increasing intensities.


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3 years ago
Solomon can buy four sodas for $6 how much would 6 sodas cost
Bad White [126]

Answer:

6 soda's will cost $9.

Step-by-step explanation:

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