Mark M. answered 05/05/22
Mathematics Teacher - NCLB Highly Qualified
70 / 102 = L / 502
John Y.
asked 05/05/22The loudness L of a sound (measured in decibels, dB) is inversely proportional to the square of the distance d from the source of the sound. A person 10 ft from a lawnmower experiences a sound level of 70 dB. How loud is the lawn mower when the person is 50 ft away? (Set up and solve an equation of variation).
Mark M. answered 05/05/22
Mathematics Teacher - NCLB Highly Qualified
70 / 102 = L / 502
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