Question

Riley has a farm on a rectangular piece of land that is 200200200 meters wide. This area is divided into two parts: A square area where she grows avocados (whose side is the same as the length of the farm), and the remaining area where she lives. Every week, Riley spends \$3$3dollar sign, 3 per square meter on the area where she lives, and earns \$7$7dollar sign, 7 per square meter from the area where she grows avocados. That way, she manages to save some money every week.

Answer 1

Answer:

$7l^{2} >3l(200-l)$

Step-by-step explanation:

Square area of avocado plant: l  · l ⇒ l²

Money: 7 · l²

Square area of living sector: (200 - l) · l

Money: 3 · l · (200 - l)

Every week, Riley spends $3  per square meter on the area where she lives, and earns $7 per square meter from the area where she grows avocados. That way, she manages to save some money every week.

⇒ 7 · l² > 3 · l · (200 - l)