2 years ago

Look at the following numbers -6 0 6 12 Which pair of numbers has a sum of 0?

Mathematics

1 answer:

ahrayia [7]2 years ago

6 0

Answer:

-6, 6

Step-by-step explanation:

-6+6=0

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The triangles are similar. Find the missing side.* - 36 - 25 - 29

xeze [42]

Step-by-step explanation:

$\frac{30}{6} = \frac{x}{5} \\ x = 25$

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The quantity y varies directly as x and inversely as z. When x is 10 and z is 4, y is 15. What is y when x is 20 and z is 6?

frosja888 [35]

Y=(kx)/z

15=(k10)/4
15=(5k/2)
15=k(5/2)
ties both sides by 2/5 to clear fraction
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Equation <img src="https://tex.z-dn.net/?f=%28z%20%2B%20%20%5Cfrac%7B6%7D%7B7%7D%20%29%20%2B%20%20%5Cfrac%7B2%7D%7B14%7D%20%2

ddd [48]

Given:

The equation is

$\left(z+\dfrac{6}{7}\right)+\dfrac{2}{14}=-1$

To find:

The solution of the given equation.

Solution:

We have,

$\left(z+\dfrac{6}{7}\right)+\dfrac{2}{14}=-1$

It can be written as

$\left(z+\dfrac{6}{7}\right)+\dfrac{1}{7}=-1$

$\left(z+\dfrac{6}{7}\right)=-1-\dfrac{1}{7}$

Multiply both sides by 7.

$7z+6=-7-1$

$7z+6=-8$

$7z=-8-6$

$7z=-14$

Divide both sides by 7.

$z=\dfrac{-14}{7}$

$z=-2$

Therefore, the value of z is -2.

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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