To solve the problem, we'll break it down into the three parts as requested.
Part A:
We need to compare the two pay increases: 12% of her current salary and a flat $4,000 increase.
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Calculate 12% of her current salary: \[ \text{12% of } $37,400 = 0.12 \times 37,400 = $4,488 \]
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Compare the two increase options:
- 12% increase: $4,488
- Flat increase: $4,000
Since $4,488 (the 12% increase) is greater than $4,000, Sophia should choose the 12% increase.
Part B:
Now, we calculate her new annual salary based on the 12% increase: \[ \text{New Salary} = \text{Current Salary} + \text{12% increase} = 37,400 + 4,488 = 41,888 \]
Next, we calculate her hourly wage:
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Total hours worked in a year: \[ \text{Total hours} = 42 \text{ hours/week} \times 50 \text{ weeks} = 2,100 \text{ hours} \]
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Hourly wage: \[ \text{Hourly Wage} = \frac{\text{New Salary}}{\text{Total hours}} = \frac{41,888}{2,100} \approx 19.95 \]
So, Sophia's hourly wage will be approximately $19.95.
Part C:
Now we compare Sophia's current job with the new job based on hourly rates.
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Current job hourly rate:
From Part B, we've calculated it as approximately $19.95. -
New job's salary and hourly rate calculation:
- New Salary = $52,900
- Total hours worked in a year (for new job): \[ \text{Total hours} = 55 \text{ hours/week} \times 50 \text{ weeks} = 2,750 \text{ hours} \]
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New job's hourly rate: \[ \text{Hourly Wage} = \frac{52,900}{2,750} \approx 19.18 \]
Deciding Based on Hourly Rate:
- Current job hourly rate: $19.95
- New job hourly rate: $19.18
Since $19.95 (current job hourly rate) is greater than $19.18 (new job hourly rate), Sophia should continue at her current job.