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den301095 [7]
3 years ago
9

PLEASE HELP Show all Your work 25 points will give brainly

Mathematics
1 answer:
julsineya [31]3 years ago
6 0

Answer:

x=9

Step-by-step explanation:

√117²=x²+6²

117=x²+36

x²=117-36

x²=81

x=9

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Step-by-step explanation:

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9. If y = kx, where k is a constant, and y = -3<br> when x = 6, what is the value of x when y = 12?
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Hey there! :)

Answer:

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Step-by-step explanation:

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the difference between two numbers is 9. the first number plus twice the other number is 27. find the two numbers
tatuchka [14]
So,

Let's translate this into mathematical form.

x - y = 9
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Elimination by Addition
Divide both sides of the second equation by 2
\frac{1}{2}x + y = 13 \frac{1}{2}

Add the two equations together
\frac{3}{2} x = \frac{45}{2}

Multiply both sides by \frac{2}{3}
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Substitute
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Substitute
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Distribute
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S = {(15,6)}
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