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mars1129 [50]
3 years ago
5

3x-30=y 7y-6=3x using elimination

Mathematics
1 answer:
Hitman42 [59]3 years ago
3 0

Answer:

x=12, y=6. (12, 6).

Step-by-step explanation:

3x-30=y

7y-6=3x

----------------

7y-6-30=y

7y-36=y

7y-y-36=0

6y-36=0

6y=0+36

6y=36

y=36/6

y=6

7(6)-6=3x

42-6=3x

36=3x

x=36/3

x=12

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an example that opposes or contradicts an idea or theory.

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3 years ago
Hi can some please help?
Oduvanchick [21]
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4X^2-13X+3.
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3 0
3 years ago
Determine if events A and B are mutually exclusive.
gladu [14]

Answer:

A) Not mutually exclusive

Step-by-step explanation:

Given

P(A) = \frac{1}{4}

P(B) = \frac{3}{5}

P(A\ or\ B) = \frac{7}{10}

Required

Determine if they are mutually exclusive or not

Mutually exclusive are defined by:

P(A\ or\ B) = P(A) + P(B)

So, we have:

P(A\ or\ B) = \frac{1}{4} + \frac{3}{5}

Take LCM

P(A\ or\ B) = \frac{5+12}{20}

P(A\ or\ B) = \frac{17}{20}

By comparing:

P(A\ or\ B) = \frac{17}{20} ---- Calculated

P(A\ or\ B) = \frac{7}{10} ---- Given

We can conclude that A and B are not mutually exclusive because:

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6 0
3 years ago
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Harlamova29_29 [7]

Answer:

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3 years ago
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Contact [7]

Answer:

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2. A. The median represents the center.

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Step-by-step explanation:

Mean of a sample = sum of the samples/no of the samples

Samples in increasing order:

9.8

9.8

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6 0
3 years ago
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