Question

Ben wants to buy some albino frogs for his aquarium. He has $20 to spend and the frogs cost $2.50 each. Write, solve, and interpret an inequality to find how many frogs he can afford.

Answer 1

Given:

He has $20 to spend and the frogs cost $2.50 each.

To find:

The inequality to find how many frogs he can afford.

Solution:

Let x be the number of frogs he can afford.

Cost of one frog = $2.50

Cost of x frogs = $2.50x

He has $20 to spend. It means, the total cost, i.e., $2.50x, must be less than or equal to $20.

$2.50x\leq 20$

Divide both sides by 2.50.

$x\leq \dfrac{20}{2.50}$

$x\leq 8$

Therefore, the maximum number of frogs he can afford is 8.