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xeze [42]
4 years ago
11

Which System has the same solution as the system of equation shown

Mathematics
1 answer:
Yuliya22 [10]4 years ago
4 0

Answer: B. 8x+3y=5

-8x - 4y= -6

Step-by-step explanation:

The given system of equations is expressed as

8x + 3y =5 - - - - - - - - -1

4x + 2y =3 - - - - - - - - - - 2

We would eliminate x by multiplying equation 1 by 4 and equation 2 by 8. It becomes

32x + 12y =20

32x + 16y = 24

Subtracting, it becomes

- 4y = - 4

y = - 4/ - 4

y = 1

Substituting y = 1 into equation 1. It becomes

8x + 3 × 1 =5

8x + 3 = 5 - 3 = 2

x = 2/8 = 1/4

Substituting x = 1/4 and y = 1 into the given options, it becomes

A. 8 × 1/4 + 3 × 1=5

2 + 3 = 5

- 8 × 1/4 +4 × 1 = 2

B. 8x+3y=5

-8x - 4y= -6

- 8 × 1/4 - 4 × 1 = -6

Therefore, the system of of equations that has the same solution as the given equation is

B. 8x+3y=5

-8x - 4y= -6

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2 years ago
Find the slope and y- intercept of the line. y = 6x-9
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the slope is 6.

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Let w represent the possible weights of boxes on a delivery truck. For this type of delivery, the weight of the box must be with
Paraphin [41]
The answer is <span>B. |w – 48| ≤ 8.

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3 0
3 years ago
Decimal a = 2.5m; decimal b = 4.0m; decimal c = 12.7m; int i = 4; int j = 8; int k = 17; What is the value of x after the follow
ra1l [238]

Answer:

Option b(0.5) is the correct answer for the above question.

Step-by-step explanation:

  • The above code is written in the C# language. The first three statements are used to declare the three decimal variable and initialize them by some value. But this has no use in the above code.
  • Then there are the other three statemen which is used to declare the three variable of type integer which names are i,j and k and initialize them to a value 4,8 and 17.
  • Then the expression "decimal x = (decimal)i / (decimal)j;", intialize the value 0.5 to the x variable.
  • It is because the i and j value will be typecast in the decimal value and then i is divided by j. It means (4.0) is divided by (8.0) which gives the result 0.5.
  • Hence option b is the correct answer while the other is not because the other option is not the value of the x variable.
6 0
4 years ago
How do you find the average of 10.4, 10.2,10
aleksandrvk [35]
Add all the numbers up and divide.
10.4 + 10.2 + 10 = 30.6
30.6 / 3 = 10.2
6 0
4 years ago
Read 2 more answers
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