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Lynna [10]
3 years ago
8

Find the solution to the system of equations: x + 3y = 7 and 2x + 4y = 8 1. Isolate x in the first equation: 2. Substitute the v

alue for x into the second equation: 3. Solve for y:       4. Substitute y into either original equation: 5. Write the solution as an ordered pair:     x = 7 – 3y 2(7 – 3y) + 4y = 8 14 – 6y + 4y = 8 14 – 2y = 8 –2y = –6 y = 3 x + 3(3) = 7 (, )
Mathematics
2 answers:
Dmitrij [34]3 years ago
8 0

Answer:

Thx. (-2, 3) is correct

Step-by-step explanation:

klemol [59]3 years ago
6 0
X + 3y = 7
x = -3y + 7

2x + 4y = 8
2(-3y + 7) + 4y = 8
-6y + 14 + 4y = 8
-2y = 8 - 14
-2y = - 6
y = -6/-2
y = 3

x + 3y = 7
x + 3(3) = 7
x + 9 = 7
x = 7 - 9
x = -2

solution is (-2,3)
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Crazy boy [7]

Answer:

200.86

Step-by-step explanation:

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A=C2

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I hope this helps.

4 0
2 years ago
I NEED HELP ASAP!!
zzz [600]

Answer:

C. {-5,-4, -3, 1, 2, 5}

Step by step explanation:

We have been given a graph and we are asked to find the domain of the relation represented in graph.

We can see that our graph is a series of unconnected points. Our function represents integer values. So we can see that our graph represents a discrete function.    

Since we know that domain of a discrete function is set of inputs values consisting of only certain values in an interval. .

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Therefore, option C is the correct choice.


7 0
2 years ago
When completing an online shopping transaction, a typical shopper takes 5 seconds to select each product and another 60 seconds
natulia [17]

4 products are being purchased.

Step-by-step explanation:

Given,

Time taken to select each product = 5 seconds

Time taken to complete check out process = 60 seconds

Total time taken for a transaction = 80 seconds

Let,

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Time taken for each product*Number of product + Time for check out process = total process

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4 products are being purchased.

Keywords: variable, division

Learn more about division at:

  • brainly.com/question/11258952
  • brainly.com/question/11343416

#LearnwithBrainly

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