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kondor19780726 [428]
3 years ago
12

A garden measuring 10 meters by 7 meters is going to have a walkway constructed all around the perimeter, increasing the total a

rea to 130 square meters. What will be the width of the pathway?
Mathematics
1 answer:
SashulF [63]3 years ago
5 0

The width of the pathway is 3m

Step-by-step explanation:

Let the width of the pathway be 'w'

The area will be 130 square meters

The dimensions of the garden is 10 x 7

Area = (10+w) (7+w)

130 = 70 + 17w + w^2

w^2 + 17w - 60 = 0

w^2 +20w - 3w - 60 = 0

w ( w + 20) - 3 ( w + 20) = 0

(w + 20) (w - 3) = 0

w = -20 ( or) w = 3

w is the width and cannot be negative.

So, w = 3 meters

The width of the pathway is 3m

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A fraction is a non integer that is made up of a numerator and a denominator. A fraction is used to express the ratio or the relationship between two or more quantities. An example of a fraction is 1/2.

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What sampling method is used in the following examples. Is the method biased or not?
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