Keilantra practices the piano at a rate of 23 minutes per day, as represented by the equation m = 23d.
The equation \( m = 23d \) represents the proportional relationship between the total number of minutes Keilantra practices the piano (\( m \)) and the number of days she practices (\( d \)).
In this equation, the constant of proportionality is 23, indicating that for each day of practice, Keilantra spends 23 minutes playing the piano.
To determine the rate at which Keilantra practices, we can interpret the equation as a ratio of the total practice time to the number of days.
The rate is given by the coefficient of \( d \) in the equation, which is 23. Therefore, Keilantra practices at a rate of 23 minutes per day.
This implies that for every additional day of practice, the total practice time increases by 23 minutes.
The rate is constant, reflecting the proportional nature of the relationship.
It's important to note that rates provide a measure of change with respect to another variable, and in this case, the rate measures the change in practice time per day for Keilantra.