To create an equation that represents Lindsey's guitar practice time, we need to determine the total practice time spent during the weekdays and include her practice on Saturday as well.
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Identify the variables:
- Let \( x \) represent the number of weekdays she practiced.
- She practices 30 minutes on each weekday.
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Add the practice time from Saturday:
- On Saturday, she practiced for 50 minutes.
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Set up the equation:
- The total amount of practice last week was 140 minutes.
The equation can be set up as follows:
\[ 30x + 50 = 140 \]
This represents the total practice time where:
- \( 30x \) is the total practice time for weekdays (30 minutes per day for \( x \) days),
- \( 50 \) is the practice time for Saturday,
- and the total is equal to \( 140 \) minutes.
So filling in the blanks, the equation is:
\[ 30x + 50 = 140 \]