Question

Melon seeds were sold at $3.20 for 100 g. Sunflower seeds were sold at $2.80 for 100 g. Keddy spent a total of $48.80 on the two seeds.He bought 400 g more melon seeds than sunflower seeds. What was the mass of the sunflower seeds he bought?

Answer 1

Step-by-step explanation:

Let the two adjacent angles be x° and 2x° .

In a parallelogram, sum of the adjacent angles are 180°.

∴ x + 2x = 180°

⇒ 3x = 180°

⇒ x = 60°

Thus , the two adjacent angles are 120° and 60°. Hence, the angles of the parallelogram are 120°, 60°, 120° and 60°.