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Carolyn paid a mechanic x dollars per hour for a 5 hour job plus $70 for parts. The total was $320. Which equation can be used to determine how much the mechanic charged charged…

Carolyn paid a mechanic x dollars per hour for a 5 hour job plus $70 for parts. The total was $320. Which equation can be used to determine how much the mechanic charged charged…
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Carolyn paid a mechanic x dollars per hour for a 5 hour job plus $70 for parts. The total was $320. Which equation can be used to determine how much the mechanic charged charged per hour?

User Alastair Wilkes
by
8.4k points

2 Answers

7 votes
He charged $50 per hour
User Sourav Gulati
by
8.7k points
5 votes
70+5x=320
5x=250
x=50

The mechanic charged $50 per hour.
User Ghost Answer
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7.6k points
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