Question

Rosie works 40 hours a week as an office manager. ifshe made $23,920 last year, how much was she paid per hour?

Answer 1

if she worked 40 hrs per week....and there are 52 weeks in a yr....then she worked a total of (40 * 52) = 2080 hrs.

and if she made $ 23,920 per yr.....then she made 23920 / 2080 = 
$ 11.50 per hr <==

Answer 2

Answer:

12.4583 $ / hour

Step-by-step explanation:

Topic: Conversion factors and Aritmethic Operations

How many hours does Rosie work in a year?, we have to calculate how many hours a year Rosie works, so we use convertion factors (or Rule of three) as it follows:

$\frac{40 hours}{1 week} * \frac{4 weeks}{1 month}  * \frac{12 month}{1 year}$ = 1920 hours / year

now we have to calculate how much does she make an hour, so we know she works 1920 hours / year and she makes 23,920 $ / year

so we have another conversion factor that follows

$\frac{23.920 \ }{1 year} * \frac{1 year}{1920 hours}  = \frac{12.4583 \ }{hour}$