Question

The weight P in pounds that a beam can safely carry is inversely proportional to the distance D in feet between the support beams. for a certain type of wooden beam, p=9200/
d. what distance between supports is needed to carry 1600 lb

Answer 1

Rewriting the function we have:
 p = 9200 / D
 We must in this case clear the value of D.
 We have then:
 D = 9200 / p
 Substituting the value of p = 1600 lb we have:
 D = 9200/1600
 D = 5.75 feet
 Answer:
 the distance between supports that is needed to carry 1600 lb is:
 D = 5.75 feet