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.
[tex]2.50x\leq 20[/tex]
Divide both sides by 2.50.
[tex]x\leq \dfrac{20}{2.50}[/tex]
[tex]x\leq 8[/tex]
Therefore, the maximum number of frogs he can afford is 8.
