Problem A

Aquarium Issues

Jacques got an aquarium for his birthday and wants to fill it with some guppies and tetras. Guppies are sold in groups of four and tetras are sold in groups of three. He can buy four guppies for \(\$12\), and three tetras for \(\$7\).

If Jacques spent exactly \(\$50\) on fish, how many of each fish did he buy?

**Themes:** Algebra, Number Sense