DadeL743405 DadeL743405

03-11-2022
Mathematics

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The width of a rectangular slab of concrete is 16 m less than the length. The area is 80m^2Part 1 of 3(a) What are the dimensions of the rectangle?The length of the slab is?

The width of a rectangular slab of concrete is 16 m less than the length The area is 80m2Part 1 of 3a What are the dimensions of the rectangleThe length of the class=

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KamiahG248921 KamiahG248921

03-11-2022

width = w

length = l

w = l - 16

area = w*l

(l - 16)*l = 80

l^2 - 16l = 80

l^2 - 16l - 80 = 0

(l + 4)(l - 20) = 0

then length = 20

w = 20 - 16 = 4

the width is 4

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