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Do Homework-Charleigha Knowles-Google Chrome ? Secure l https://www.mathxl.com/Student/PlayerHomework.aspx?homeworkId= Math 111 1023 Spring 2018 Homework: 1.2 Quadratic equations Score: 0 of 1 pt 12 of 12 (12 complete) ? HW Score X 1.2.107 A landscaper, who just completed a rectangular flower garden measuring 11 feet in length by 9 feet in width, orders 1 cubic yard of premixed cement, all of which is to be used to create a border of uniform width around the garden. If the border is to have a depth of 4 inches, how wide ill the border be? (1 cubic yard 27 cubic feet) The width of the border is feet (Do not round until the final answer Then round to one decimal place as needed.) parts :33 P

Explanation / Answer

Let the width of the border is w.

Depth= 4/12 = 1/3

So, the volume of the border = (2*(11+9)*w + 4*w2)*(1/3)=

Acc to question Volume = 27 cubic feet

So,

4w2 + 40w = 81

=> 4w2 + 40w - 81 = 0

=> w = 13.81/8

=> w = 1.73

Therefore width of the border is 1.73 feet

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