Mathematics
17.02.2022 09:25
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Aconstruction company is planning to pour concrete for a driveway. the length of
Aconstruction company is planning to pour concrete for a driveway. the length of the driveway is 16 feet longer that its width w. find the dimensions of the driveway if the driveway if it has an area of 260 square feet.
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giavanleer14
4,4(49 marks)
L (length) = w+16
l x w = Area
260 = l x w
260 = (w+16) x w
260 = w^2 + 16w
w^2 + 16w -260 = 0
(w+26) (w-10) = 0
w= -26 (reject) or w = 10
if w = 10, l = 26
10ft x 16 ft
l x w = Area
260 = l x w
260 = (w+16) x w
260 = w^2 + 16w
w^2 + 16w -260 = 0
(w+26) (w-10) = 0
w= -26 (reject) or w = 10
if w = 10, l = 26
10ft x 16 ft
lulustar13
4,9(57 marks)
the answer is (c) r= 48/s
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