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Rasek [7]
3 years ago
11

Annie works as both a carpenter and a blacksmith. Last week she worked 12 hours as a carpenter and 20 hours as a blacksmith and

earned a total of $860. This week, she worked 6 hours as a carpenter and 26 hours as a blacksmith. Her pay this week was $830. How much does she get paid per hour for each job?
Mathematics
1 answer:
Minchanka [31]3 years ago
6 0

Answer:Let x = pay per hour as a carpenter and y = pay per hour as a blacksmith

Last week she worked 12 hours as a carpenter

earning 12x dollars

and 20 hours as a blacksmith

earning 20y dollars

and earned a total of $860

and those two things add up to 860.

Do the same with the other sentence, giving you a second equation.

Step-by-step explanation:

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a. z=3.09. Yes, it can be concluded that the population mean is greater than 50.

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