w - width
2w - length
60 - perimeter
w + w + 2w + 2w = 6w - perimeter
The equation:
6w = 60 <em>divide both sides by 6</em>
w = 10 → 2w = 2 · 10 = 20
The area: A = width × length
A = (10)(20) = 200
<h3>Answer: The area of the garden is equal 200 square units.</h3>
<em>EXPLANATION:</em>
Classification of numbers according to the Venn diagram:
<em>Rational numbers:</em>
These numbers are represented by a fraction a / b, where a and b are integers and also b is different from zero.
<em>Whole numbers</em><em>:</em>
An integer is a natural number that can be positive or negative.
<em>Natural numbers:</em>
Natural numbers are those that start at zero to infinity are clearly positive.
<em>Rational numbers:</em>
When taking the square root of 8, 36 and 4 the result is an exact value that is why they are considered as rational numbers.
<em>Irrational Numbers:</em>
When the root of a number is not exact but is expressed as an infinite decimal as in the case of the square root of 140 which is 11.83215956619; this is an irrational number, also this result cannot be expressed as a fraction.