Answer:
$12.50
Step-by-step explanation:
Let Ricardo received the allowance = x dollars.
He spent half of her allowance on a new paper back book
so amount left with him = x - [tex]\frac{x}{2}[/tex]
= [tex]\frac{x}{2}[/tex]
then he bought a snack with the amount = $1.25
amount left = ([tex]\frac{x}{2}[/tex] - 1.25)
When he reached home amount with him = $5.00
Therefore, [tex]\frac{x}{2}[/tex]-1.25 = 5
[tex]\frac{x}{2}[/tex] = (5 + 1.25)
[tex]\frac{x}{2}[/tex] = 6.25
x = 2 × 6.25
x = $12.50
Ricardo received allowances = $12.50
