Let's represent the number of weekdays Lindsay practiced as x.
According to the problem, Lindsay practices for:
- 50 minutes on Saturday (fixed)
- 30 minutes on each weekday that she practices (variable, represented as x)
We're told that Lindsay practiced for a total of 140 minutes last week. This includes the time she practiced on Saturday and the weekdays. We can use this information to set up the equation in the form px + q = r, where p is the number of minutes practiced per weekday, q is the number of minutes practiced on Saturday, and r represents the total minutes practiced in a week.
So here, p = 30 (minutes per weekday), q = 50 (minutes on Saturday), and r = 140 (total minutes practiced).
The equation would be:
30x + 50 = 140
To further explain:
- 30x represents the total minutes from weekdays.
- 50 represents the minutes from Saturday.
- 140 represents the total practice time for the week.
So Lindsay practiced on x number of weekdays. We solve for x to find out how many weekdays she practiced.
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 to represent this problem.(2 points) x + =
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