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The pressure , P, measured in pounds per square inch (psi ) on an object under water varies directly with its depth , d measured in feet . If the pressure on an object at a depth of 20 feet is 8.6 psi, what is the pressure on an object at a depth of 25 feet ?​

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mhanifa

Answer:

  • 10.75 psi

Step-by-step explanation:

Let the equation be:

  • y = kx, where y- pressure, k- constant, x - depth

For the depth of 20 ft, the equation is:

  • 8.6 = 20k
  • k = 8.6/20
  • k = 0.43

For the depth of 25 ft, the pressure is:

  • y = 0.43*25 = 10.75 psi

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