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kykrilka [37]
3 years ago
9

A rectangular field is 240m wide. The width of the field is 3/8 the length. What is the area of the field in square kilometers r

ounded to the nearest thousandth?
Mathematics
2 answers:
alexira [117]3 years ago
5 0

Let the length of the rectangular field be x.

Given, the width of the field is 3/8 of the length.

So width = (\frac{3}{8} )x = \frac{3x}{8}

Given, the width of the rectangular field = 240m

So we can write the equation as,

\frac{3x}{8} = 240

First we have to move 8 to the right side by multiplying 8 to both sides.

(\frac{3x}{8} )(8) = (240)(8)

3x = (240)(8)

3x = 1920

We can get x, by moving 3 to the right side by dividing 3 to both sides.

\frac{3x}{3} = \frac{1920}{3}

x = \frac{1920}{3}

x = 640

So we have got the length of the rectangular field = 640m = 0.64 km.

width of the field = 240m = 0.24 km.

We know the formula to find the area of the rectangle = (l)(w)

where, l = length and w = width

By plugging in the values in the formula we will get,

Area = (0.64)(0.24)km^2

= 0.1536 km^2 = 0.154 km^2 ( Approximately taken to the nearest thousandth)

So we have got the required answer.

The area of the rectangular field = 0.154 km^2

andrey2020 [161]3 years ago
3 0
This means you should do 240*3/8 which is 90. so 90 times 240=21600
the answer is 216000km^2
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