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Novay_Z [31]
3 years ago
15

10x + 9y=0 8x + 18y=0

Mathematics
1 answer:
Luba_88 [7]3 years ago
3 0

Answer:

x=0 y=0

Step-by-step explanation:

multiple the first equation by 2

after subtract equation 2 from 1

after getting x you substitute the value of x in any of the equation for your y

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A triangle has side lengths of 39, 80, and<br> 87. Is this triangle a right triangle?
iren2701 [21]

Answer:

Step-by-step explanation:

39²=1521

80²=6400

39²+80²=1521+6400=7921

87²=7569

7921≠7569

so it is not aright angled triangle.

4 0
2 years ago
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A stereo priced at $769 is on sale for 35 % off find the discount and the sale price
frozen [14]

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Step-by-step explanation:

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7 0
3 years ago
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lana66690 [7]

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Step-by-step explanation:

Our answer is 60 because:

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