Colin sends 53 text messages a day. Write an equation using two variables to show the relationship between how many text messages he sends a day, d, and the total number of messages he sent, t.
The equation that shows the relationship between how many text messages Colin sends a day, d, and the total number of messages he sent, t, is:
t = 53d
where 't' represents the total number of messages Colin sent and 'd' represents how many days he sent those messages.