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Lemur [1.5K]
2 years ago
13

Which of the following expression represents x being tripled and then increased by 20%.

Mathematics
1 answer:
Leni [432]2 years ago
6 0

Answer:

  • 2) 3x+0.6x

Step-by-step explanation:

<u>Expression represents x being tripled:</u>

  • x*3 = 3x

<u>Then increased by 20%:</u>

  • 3x + 20% =
  • 3x + 20*3x/100 =
  • 3x + 0.6x

Correct choice is 2

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First, subtract 58 from both sides:

x^2-6x=-58

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So, add 9 to both sides:

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On the left, the perfect square trinomial pattern. Add on the right. So:

(x-3)^2=-49

Take the square root of both sides:

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Add 3 to both sides:

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So, our answer is D.

And we're done!

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