Let's solve each part step by step.
Part A:
To determine whether Sophia should choose the 12% increase or the $4,000 increase, we first need to calculate the amount of each option.
-
Calculate the 12% increase in salary: \[ \text{12% increase} = 0.12 \times 37,400 = 4,488 \] Therefore, if Sophia chooses this option, her new salary would be: \[ \text{New Salary} = 37,400 + 4,488 = 41,888 \]
-
Compare it with the $4,000 increase: Adding $4,000 to her current salary gives: \[ \text{New Salary} = 37,400 + 4,000 = 41,400 \]
-
Determine which option is better:
- 12% increase salary: $41,888
- $4,000 increase salary: $41,400
Since $41,888 is greater than $41,400, Sophia should choose the 12% increase.
Part B:
Now we need to calculate how much Sophia will make per hour if she chooses the higher pay bump.
-
Calculate her annual salary from the raised salary: \[ \text{New Salary} = 41,888 \]
-
Calculate total hours worked in the year: \[ \text{Hours per week} = 42 \quad \text{and} \quad \text{Weeks per year} = 50 \] \[ \text{Total hours} = 42 \times 50 = 2,100 \text{ hours} \]
-
Calculate her hourly rate: \[ \text{Hourly rate} = \frac{\text{Annual Salary}}{\text{Total hours}} = \frac{41,888}{2,100} \approx 19.95 \]
So, rounding this to the nearest cent, Sophia will make approximately $19.95 per hour.
Part C:
Now we will evaluate whether Sophia should continue at her current job or take the new job based on the hourly rate.
-
Calculate the hourly rate of the new job: New job salary: $52,900 \[ \text{Total hours for new job} = 55 \times 50 = 2,750 \text{ hours} \] \[ \text{Hourly rate (new job)} = \frac{52,900}{2,750} \approx 19.18 \]
-
Comparison of hourly rates:
- Current Job Hourly Rate: $19.95
- New Job Hourly Rate: $19.18
Since $19.95 (current job) is greater than $19.18 (new job), Sophia should continue at her current job based strictly on the hourly rate.
Summary of Answers:
- Part A: Choose 12% increase.
- Part B: $19.95 per hour.
- Part C: Continue at her current job.