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Nataly_w [17]
1 year ago
14

I need help with problems solving 2 and problem solving 3 please

Mathematics
1 answer:
Irina-Kira [14]1 year ago
8 0

Each row, column and diagonal adds up to the same number as stated in the question. The middle column adds up to 45, that is

16 + 15 + 14 = 45.

Therefore, the diagonal from top left to bottom right shall have

12 + 15 + 18 = 45

The top row shall have,

12 + 16 + 17 = 45

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Y-8= - * - 4<br> y=-*<br> 4<br> (3,-5)<br> no solution<br> an infinite number of solutions
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Given:

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To find:

The solution of given system of equations.

Solution:

The slope intercept form of a line is

y=mx+b

Where, m is slope and b is y-intercept.

Write the given equation in slope intercept form.

The first equation is

y-8=-\dfrac{1}{3}x-4

y=-\dfrac{1}{3}x-4+8

y=-\dfrac{1}{3}x+4              ...(i)

Here, slope is -\dfrac{1}{3} and y-intercept is 4.

The second equation is

y=-\dfrac{1}{3}x-4              ...(i)

Here, slope is -\dfrac{1}{3} and y-intercept is -4.

Since the slopes of both lines are same but the y-intercepts are different, therefore the given equations represent parallel lines.

Parallel lines never intersect each other. So, the given system of equation has no solution.

Hence, the correct option is B.

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