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Monica [59]
2 years ago
7

What is the value of y in the solution to the system of equations?

Mathematics
1 answer:
Alex17521 [72]2 years ago
4 0

Answer:

y-value = 8

Step-by-step explanation:

1/3x + 1/4y = 1 is the same as 4/12x + 3/12y = 1

which is the same as (4x + 3y)/12 = 1

which is the same as 4x + 3y = 12

add both equations and the 'y' will cancel and you will have 6x = -18

x = -3

2(-3) - 3y = -30

-6 - 3y = -30

-3y = -24

y = 8

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The total cost for tuition plus room and board at State University is 6,584
Lena [83]

Answer:

$4,194

Step-by-step explanation:

First, you need to subtract the 1,804 from the the total, which will give you 4,780. Divide this by two to get the cost of room and board, which is 2390. To find the tuition fee, add 2,390 and 1,804, and that equals $4,194.

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3 years ago
Find the inverse of function f. f(x) = 1/2x +7 / <img src="https://tex.z-dn.net/?f=f%28x%29%3D%5Cfrac%7B1%7D%7B2%7Dx%20%2B%207"
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3 years ago
Solve equation<br>8-3(p-4)=2p
LenKa [72]

Answer:

ok the answer is: p=-4

Step-by-step explanation:

First you distribute 3 times p-4 and get  8-3p+12=2p then you add 12 plus 8 and get 20 then you have 20-3p=2p you have to add 3p on both sides and you get 20= -5p you divide and get p= -4

6 0
3 years ago
Please help a girl out I'm so confused
Sloan [31]

Answer:

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Step-by-step explanation:

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Therefore this is the correct answer

5 0
3 years ago
a person bought two watches for 2500, she sold one of them at 10% profit &amp; the other one at 4% loss. what was her gain or lo
Zepler [3.9K]

Answer:

profit : RS 150 and profit % : 3%

Step-by-step explanation:

for profit 10% for loss 4%

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=150 = 150/5000×100

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8 0
2 years ago
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