One- & Two-Step Equations Unit Test
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Question
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 be the number of weekdays that Lindsay practiced.
The total time she practiced on weekdays is 30x minutes.
The total time she practiced on Saturday is 50 minutes.
Therefore, the total time she practiced last week is 30x + 50 minutes.
According to the problem, the total time she practiced last week is 140 minutes.
So, we have the equation 30x + 50 = 140.