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Lena [83]
4 years ago
15

Solve the system of equations by elimination -6x − 4y =-4 3x + 2y = 6

Mathematics
1 answer:
lara31 [8.8K]4 years ago
5 0
-6x - 4y = -4 ——— (1)
3x + 2y = 6 ———- (2)

(2)x 2:
6x + 4y = 12 ———(2a)

(2a) - (1)
0x - 0y = 16

It has no solution (or you copied the question wrongly)
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The answer is a) x=-4.5, y=-4.25
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A supplier has delivered 9 pallets of material to the hardware store. The delivery needs to be inventoried in 1.5 hours. How man
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6 Pallets per hour.

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Solve 4x- 9 = k for x.
elixir [45]

Answer:

x = (k+9)/4

Step-by-step explanation:

4x - 9 =k

Add 9 to each side

4x-9+9 = k+9

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17) 16-81 +10 &gt; 22<br> -6-4-2 0<br> 2<br> 4<br> 6<br> 8 10 12 14 16 18 20 22 24
dlinn [17]

Answer: I'm not totally sure what the question is because of the lack of detail but i believe the answer is  g(x - 8) + 4

Step-by-step explanation:

6 0
4 years ago
1) (28 ÷ 4) + 3 + (10 - 8) × 5 2) 12 - 5 + 6 × 3 + 20 ÷ 4 3) 36 ÷ 9 + 48 - 10 ÷ 2 4) 10 + 8 × 90 ÷ 9 - 4 5) 8 × 3 + 70 ÷ 7 – 7
artcher [175]

Answer:

1) 20.

2) 30.

3) 47.

4) 86.

5) 27.

Step-by-step explanation:

The order of operations consist in, first, evaluate the parenthesis, then the exponents, the multiplication, the division, and as last the addition and subtraction. Having this in mind:

1) (28 ÷ 4) + 3 + (10 - 8) × 5

7 + 3 + 2 × 5

7 + 3 + 10

20

2) 12 - 5 + 6 × 3 + 20 ÷ 4

12 - 5 + 18 + 5

30

3) 36 ÷ 9 + 48 - 10 ÷ 2

4 + 48 - 5

47

4) 10 + 8 × 90 ÷ 9 - 4

10 + 80 - 4

86

5) 8 × 3 + 70 ÷ 7 – 7

24 + 10 - 7

27

6 0
3 years ago
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