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Temka [501]
4 years ago
11

Solve the system using Elimination

Mathematics
2 answers:
Serhud [2]4 years ago
8 0

Answer:

B) 0,-2  (x = 0 , y = -2)

Step-by-step explanation by elimination:

Solve the following system:

{2 x + 6 y = -12 | (equation 1)

{5 x - 5 y = 10 | (equation 2)

Swap equation 1 with equation 2:

{5 x - 5 y = 10 | (equation 1)

{2 x + 6 y = -12 | (equation 2)

Subtract 2/5 × (equation 1) from equation 2:

{5 x - 5 y = 10 | (equation 1)

{0 x+8 y = -16 | (equation 2)

Divide equation 1 by 5:

{x - y = 2 | (equation 1)

{0 x+8 y = -16 | (equation 2)

Divide equation 2 by 8:

{x - y = 2 | (equation 1)

{0 x+y = -2 | (equation 2)

Add equation 2 to equation 1:

{x+0 y = 0 | (equation 1)

{0 x+y = -2 | (equation 2)

Collect results:

Answer:  {x = 0 , y = -2

Nezavi [6.7K]4 years ago
7 0

1)(D) (3,1)

2)(C)(-3,-5)

3)(B)(0,-2)

4)(B)

100%right On Connexus Lesson 3 Unit 1

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ziro4ka [17]

Answer:

0 < x ≤ 100 and 0 < y ≤ 300

Step-by-step explanation:

THIS IS THE COMPLETE QUESTION BELOW;

college is currently accepting students that are both in-state and out-of-state. They plan to accept three times as many in-state students as out-of-state, and they only have space to accept 100 out-of-state students. Let x = the number of out-of-state students and y = the number in-state students. Write the constraints to represent the incoming students at the college.

0 < x ≤ 100 and 0 < y ≤ 300

x > 0 and y > 0

0 < x ≤ 100 and y > 300

0 < x and y < 100

SOLUTION

they only have space to accept 100 out-of-state students,which means that the Maximum number of out-of-state students that can be accepted is 100

Then x= 100(Maximum number of out-of-state students that can be accepted)

They plan to accept three times as many in-state students as out-of-state which means that

Y = 3x(Maximum number of in-state students)

Then we can deduced that the numbee out-of-state students that can be accepted can lyes between the range of 0 and 100 which means from interval 0 to 100

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0 < x ≤ 100

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3× 100= 300

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0 < y ≤ 300

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0 < x ≤ 100 and 0 < y ≤ 300

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3 years ago
Time Sensitive Question
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Answer:

X< 7/12

Step-by-step explanation:

5 0
4 years ago
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12x + 1 = 3(4x + 1) - 2

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3 years ago
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39. The equation of a line in standard form is
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Answer:

Let's solve for x.

4x−2y=20

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4x−2y+2y=20+2y

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Step 2: Divide both sides by 4.

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