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Tema [17]
3 years ago
14

Mr. Johnson currently has a square garden. It is in his garden and into a range of 5 feet shorter than three times shorter than

times it width. He decides that the perimeter should be 70 feet. Determine the dimensions, in feet, of his new garden
Mathematics
1 answer:
Vlad [161]3 years ago
3 0

Answer:

The Dimension of new garden is 25 \ feet\ \times 10\ feet.

Step-by-step explanation:

Given:

Perimeter of new garden = 70 feet.

Let the length of the new garden be 'l'.

Also Let the width of the new garden be 'w'.

We need to find the dimension of new garden.

Now Given:

Length is 5 feet shorter than three times it width.

framing the equation we get;

l =3w-5 \ \ \ \ equation\ 1

Now we know that;

Perimeter of rectangle is equal to twice the sum of length and width.

framing in equation form we get;

2(l+w)=70

Now Diving both side by 2 using Division property of equality we get;

\frac{2(l+w)}2=\frac{70}{2}\\\\l+w =35

Now Substituting equation 1 in above equation we get;

3w-5+w=35\\\\4w-5=35

Adding both side by 5 Using Addition Property of equality we get'

4w-5+5=35+5\\\\4w=40

Now Diving both side by 4 using Division property of equality we get;

\frac{4w}{4}=\frac{40}{4}\\\\w=10\ ft

Now Substituting the value of 'w' in equation 1 we get;

l =3w-5\\\\l =3\times10-5\\\\l = 30-5\\\\l= 25\ ft

Hence The Dimension of new garden is 25 \ feet\ \times 10\ feet.

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