Question

Enrique has $50 in his lunch account and spends $5 per day from the account. Maya has $46 in her lunch account and spends $4 per day from the account. Which equations model the situation?
50 – 5x = y and 46 – 4x = y
5x + 50 = y and 4x + 46 = y
5x – 50 = y and 4x – 46 = y
5 – 50x = y and 4 – 46x = y

Answer 1

Enrique has 50$ in his lunch account and spends 5$ per day from the account. 
This means, that in order to get how much money Enrique has in his account (y) left we should subtract the money he spends from the total amount:
50-5*x=y, where x is the number of days, and the product 5*x gives the amount of money Enrique spends for X days. 
Similar to this , Maya has 50$ in his lunch account and spends 4$ per day. So, she has left:
26-4*x=y.

So, the first equation models the described situation. 
50 – 5x = y and 46 – 4x = y

Answer 2

Answer:

A) 50 – 5x = y and 46 – 4x = y