Question

Sophia takes guitar lessons at home every Sunday. Her instructor charges $15 to cover home visit costs, and $30 per hour of training. One Sunday, Sophia's mother pays the instructor $75 for the guitar lessons. Select the equation that represents the given situation and find the number of hours of Sophia's lesson. A. 30x + 15 = 75; 2 hours B. 15x + 30 = 75; 3 hours C. 15x + 30 = 75; 2 hours D. 30x + 15 = 75; 3 hours

Answer 1

30x + 15 = 75; 2 hours

Explanation:

30x + 15 = 75

Subtract 15 from 75 (75 - 15 = 60)

30x = 60

Divide by 30 (60 / 30 = 2)

x = 2