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BabaBlast [244]

3 years ago

8

6)a garden was square, but last year she made it makes or shortening one side 5 meters and the other 8 meters. If the area of th

e smaller garden is 180 m², then what was the area of her square garden

1 answer:

Alekssandra [29.7K]3 years ago

5 0

Answer:

let dimention of original garden be x

then (x-8)(x-5) = 180

x^2 -13x -140 = 0

(x-20)(x+7)=0

x= 20 or x = -7

x = 20

original area = (20)^2

= 400 m^2

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3 years ago

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Let us start by defining some events seen:

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First of all, we find P(BB).

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P(BB) = 0.6*7/10 + 0.4*1/2 = 0.62

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