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7. The load, P (in pounds), that can be safely supported by a horizontal beam varies jointly as the product of the width, W (in feet), of the beam and the square of the depth, D (in feet), and inversely as its length, L (in feet). If a beam has a width of 2 feet, a depth of 1 foot and a length of 4 feet, the load it can support is 10 pounds. How much could the beam hold if the beam had a length of 6 feet, a depth of 2 feet, and a width of 3 feet?

7. The load, P (in pounds), that can be safely supported by a horizontal beam varies jointly as the product of the width, W (in feet), of the beam and the square of the depth, D (in feet), and inversely as its length, L (in feet). If a beam has a width of 2 feet, a depth of 1 foot and a length of 4 feet, the load it can support is 10 pounds. How much could the beam hold if the beam had a length of 6 feet, a depth of 2 feet, and a width of 3 feet?

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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7. The load, P (in pounds), that can be safely supported by a horizontal beam varies jointly as the product of the width, W (in feet), of the beam and the square of the depth, D (in feet), and inversely as its length, L (in feet). If a beam has a width of 2 feet, a depth of 1 foot and a length of 4 feet, the load it can support is 10 pounds. How much could the beam hold if the beam had a length of 6 feet, a depth of 2 feet, and a width of 3 feet?
Transcribed Image Text:7. The load, P (in pounds), that can be safely supported by a horizontal beam varies jointly as the product of the width, W (in feet), of the beam and the square of the depth, D (in feet), and inversely as its length, L (in feet). If a beam has a width of 2 feet, a depth of 1 foot and a length of 4 feet, the load it can support is 10 pounds. How much could the beam hold if the beam had a length of 6 feet, a depth of 2 feet, and a width of 3 feet?
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