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lakkis [162]
3 years ago
10

4) -4y= -x + 4 6) y + 3x = 3

Mathematics
1 answer:
wel3 years ago
4 0

Answer:

x=16/13

y= -9/13

Step-by-step explanation:

A:         -4y=-x+4

B:          y+3x=3

4B:       4y+12x=12

A+4B:   12x= -x+16

----->    13x=16

               x=16/13

-4y= -16/13+4

4y=16/13-4

y=4/13-1= -9/13

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Given:

The data set is:

40, 76, 40, 63, 47, 57, 49, 55, 50, 53

To find:

The median of the given data set.

Solution:

We have,

40, 76, 40, 63, 47, 57, 49, 55, 50, 53

Arrange the data values in ascending order.

40, 40, 47, 49, 50, 53, 55, 57, 63, 76

Here, the number of observations is 10 which is an even number. So, the median is:

Median=\dfrac{(\dfrac{n}{2})\text{th term}+(\dfrac{n}{2}+1)\text{th term}}{2}

Putting n=10, we get

Median=\dfrac{(\dfrac{10}{2})\text{th term}+(\dfrac{10}{2}+1)\text{th term}}{2}

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From the arranged terms, it is clear that the the 5th term is 50 and the 6th term is 53.

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4 0
3 years ago
The total of fifteen and a number p
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Iteru [2.4K]

Consider the equation:

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Subtracting '4' from both the sides of the equation, we get as

\sqrt{x+2}+4-4= 8-4

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Subtracting '2' from both the sides of the equation, we get

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Since, An extraneous solution is a solution that arises from the solving process that is not really a solution at all. But, in this equation x=14 is the solution of the given equation.

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4 0
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