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Alisiya [41]
3 years ago
9

Dale and sharon mahnke have decided to fence off the garden plot behind their​ house, using their house as a​ "fence" along one

side of a garden. the length​ (which runs parallel to the​ house) is 66 feet less than twice the width. find the dimensions if 30 feet of fencing is used along the three sides requiring it.
Mathematics
1 answer:
kkurt [141]3 years ago
6 0

The length l is given as:

l = 2 w – 6

where w is the width

 

We know that the fencing is 30 feet therefore the perimeter (excluding the side of the house) is:

P = l + 2 w = 30

2 w – 6 + 2 w = 30

4 w – 6 = 30

w = 9

 

So the length l is:

l = 2 (9) – 6

l = 12

 

<span>The dimensions are 12 ft x 9 ft</span>

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