Final answer:
The student has 230 footy cards in total.
Step-by-step explanation:
If 1/10 of the total number of footy cards is 23, we need to determine the total number of cards.
To do this, we can set up a simple equation where the total number of cards is represented by x.
The equation is: 1/10 of x = 23.
We can then solve for x by multiplying both sides of the equation by 10:
1/10 × x = 23
10 × (1/10) × x = 23 × 10
x = 230
So, the student has a total of 230 footy cards.