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Alona [7]
3 years ago
13

5/x=x+2/3 . Multiply each side by the common denominator to find the quadratic equation equivalent to this equation.​

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
8 0

Answer:

C. x^2+2x-15=0

Step-by-step explanation:

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2 years ago
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Find the value of x in a triangle. x-20, x+10, x-20
tatyana61 [14]

The value of the angles should be. (x-40°). , (x-20°), (½x-10°) , not (x-40°) + (x-20°)+(½x-10°)

Sum of all the interior angles of a triangle is 180°.

So a equation can be made by the given data,

(x-40°) + (x-20°) + (½ x-10°) = 180°

x-40°+x-20°+½x-10° = 180°

2x+½x -60°-10° = 180°

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So the angles are

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x-20° = 100°–20° = 80°

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The answer can be checked by putting the values of the angle we got in the second statement i.e. Sum of all the interior angles of a triangle is 180°.

60° + 80° + 40° = 100° + 80° = 180°

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