Johan practices the drums for 45 minutes on Saturday and 25 minutes on most weekdays. Last week he practiced 120 minutes. How many weekdays did he practice? Write an equation in the form of px + q = r to represent this problem.

Answer 1

Let \( x \) represent the number of weekdays Johan practiced drums. According to the problem, Johan practices for 45 minutes on Saturday and 25 minutes on each weekday.

The total practice time in minutes can be expressed as:

\[ \text{Total practice time} = \text{practice on Saturday} + \text{practice on weekdays} \] \[ 120 = 45 + 25x \]

Now, we can rearrange this equation into the form \( px + q = r \):

\[ 25x + 45 = 120 \]

In this equation:

• \( p \) is 25
• \( q \) is 45
• \( r \) is 120

Thus, the equation representing the problem is:

\[ 25x + 45 = 120 \]