Answer: The required equation is,
a = 350 - 50 d
Step-by-step explanation:
Here, d represents the number of days and a represents the amount left after d days,
Given,
The initial amount she has = $ 350,
Also, the amount she spend in each day = $ 50,
So, the amount she spend in d days = 50d dollars,
Thus, the amount left after d days = Initial amount - Amount spent in d days
⇒ a = 350 - 50d,
Which is the required equation.
