Question

A rain gutter is made from sheets of aluminum that are 11 inches wide. As shown in the figure the edges are turned up to form right angles. Determine the depth of the gutter that will allow a cross-sectional area of 10 in.². Show that there are two different Solutions to the problem

Answer 1

x+2y = 11
xy = 10

(11-2y)y = 10
2y^1-11y+10 = 0
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