Carolyn paid a mechanic x dollars per hour for a 5-hour job plus $70 for parts. The total charge was less than $320. Which equation can be used to determine how much the mechanic charged per hour?
A. 5x<320+70
B. 5x<320-70
C. (70+5) x<320
D. (70-5) x<320
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Home » Mathematics » Carolyn paid a mechanic x dollars per hour for a 5-hour job plus $70 for parts. The total charge was less than $320. Which equation can be used to determine how much the mechanic charged per hour? A. 5x<320+70 B. 5x<320-70 C. (70+5) x<320 D.