mrominouspiggy mrominouspiggy
  • 17-03-2020
  • Mathematics
contestada

Solve for x (round to the nearest tenth)

Solve for x round to the nearest tenth class=

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hanifchoirunnisa
hanifchoirunnisa hanifchoirunnisa
  • 17-03-2020

y/(5 + 3) = 5/y

y/8 = 5/y

y² = 40

y = 2√10

5/x = x/3

15 = x²

√15 = x

Answer Link
sqdancefan
sqdancefan sqdancefan
  • 17-03-2020

Answer:

  3.9

Step-by-step explanation:

The right triangles are all similar, so the ratio of short side to long side is the same for all:

  3/x = x/5

  15 = x^2 . . . . . . . . multiply by 5x

  x = √15 ≈ 3.9

Answer Link

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