Lindsay practices the guitar 50 minutes on Saturday and 30 minutes on most weekdays. Last week she practiced 140 minutes. How many weekdays did she practice? Write an equation in the form px+q=r

Question

to represent this problem.

?x + ? = ?

Answer 1

Let's define the variables:

• Let \( x \) be the number of weekdays Lindsay practiced.
• Lindsay practices 30 minutes on each weekday.
• On Saturday, she practices 50 minutes.

We know that last week she practiced a total of 140 minutes. We can set up the equation as follows:

The total practice time is the sum of the practice time on weekdays and on Saturday. The equation will be:

\[ 30x + 50 = 140 \]

So in the form \( px + q = r \):

• \( p = 30 \)
• \( q = 50 \)
• \( r = 140 \)

The equation representing this problem is:

\[ 30x + 50 = 140 \]