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)
Let x represent the number of weekdays Lindsay practiced.
Therefore, she practiced 30x minutes on weekdays.
She also practiced 50 minutes on Saturday.
The total time she practiced is 30x + 50.
We can write the equation as: 30x + 50 = 140.
Let's assume that Lindsay practices on x number of weekdays.
Since she practices 30 minutes on most weekdays, the total time she practices on weekdays is 30x minutes.
On Saturday, she practices for 50 minutes.
Therefore, the total time she practices in a week is 30x + 50 minutes.
We are given that the total time she practiced last week is 140 minutes.
So, we have the equation:
30x + 50 = 140
This equation represents the given problem in the form px + q = r, where p = 30, x is the number of weekdays, q = 50, and r = 140.
To find the number of weekdays Lindsay practiced, we first need to determine the total practice time on weekdays. Since she practiced for 30 minutes on most weekdays, we can assume she practiced for 30 minutes every weekday (including Saturday) except for one day.
Let's represent the number of weekdays Lindsay practiced as 'x'. The total practice time on weekdays can then be calculated as 30 minutes multiplied by the number of weekdays, which gives us 30x.
In addition to practicing on weekdays, Lindsay also practiced for 50 minutes on Saturday. Therefore, the total practice time last week can be represented as 30x + 50.
Given that the total practice time last week was 140 minutes, we can set up the equation:
30x + 50 = 140
This equation is in the form px + q = r, where p = 30, x is the variable representing the number of weekdays, q = 50, and r = 140.
Therefore, the equation in the requested form is 30x + 50 = 140.