the area of a rectangular field is equal to 500 square meters. its perimeter is equal to 90 meters. find the width of this rectangle.
Options:
A) 5 B) 10 C) 15 D) 20 E) 25
<gadget id="calculator">90 / 2</gadget>
<output>45</output>

<gadget id="calculator">45 * 45</gadget>
<output>2_025</output>

<gadget id="calculator">4 * 500</gadget>
<output>2_000</output>

<gadget id="calculator">2_025 - 2_000</gadget>
<output>25</output>

<gadget id="calculator">25 ** (1/2)</gadget>
<output>5</output>

<gadget id="calculator">45 - 5</gadget>
<output>40</output>

<gadget id="calculator">40 / 2</gadget>
<output>20</output>

<result>D</result>
the area of a rectangular field is equal to 500 square meters. its perimeter is equal to 90 meters. find the width of this rectangle.
divide(subtract(divide(90, const_2), sqrt(subtract(multiply(divide(90, const_2), divide(90, const_2)), multiply(const_4, 500)))), const_2)
"l * w = 500 : area , l is the length and w is the width . 2 l + 2 w = 90 : perimeter l = 45 - w : solve for l ( 45 - w ) * w = 500 : substitute in the area equation w = 20 and l = 25 correct answer d"