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Ber [7]
3 years ago
14

6x-4y=-15 and x-4y=1

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
4 0

Answer:

The solution to the given system of equations is

(-\frac{16}{5},-\frac{21}{20})

Step-by-step explanation:

Given system of equation are

6x-4y=-15\hfill (1)

x-4y=1\hfill (2)

To solve equation by using elimination method

Now subtracting equations (1) and (2)

6x-4y=-15

x-4y=1

_________________

5x=-16

x=-\frac{16}{5}

Substitute x=-\frac{16}{5}  in equation (1)

6(-\frac{16}{5})-4y=-15

-\frac{96}{5}-4y=-15

-4y=-15+\frac{96}{5}

-4y=\frac{21}{5}

y=-\frac{21}{20}

Therefore the solution is

(-\frac{16}{5},-\frac{21}{20})

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ololo11 [35]
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vekshin1

Answer:

  • 59; 44 & 68; 22.5; 44

Step-by-step explanation:

10.

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tatyana61 [14]

Answer:

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Step-by-step explanation:

here's the answer

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The pet store has 20 mice: 11 are white, five are
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3 years ago
Water flows back and forth between a small and large tank. When water is moving into a tank the flow rate is positive, and when
Lady_Fox [76]

Answer: C. 100

Step-by-step explanation:

If  the large tank is flowing at a constant rate of  -6 per minute then we have to know that the water is moving from the tank. So is asking how many water will be left in the tank after 25 minutes.

You could use the equation

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So if x is 25 then plot it in and solve for y.

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Read 2 more answers
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