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

12.4583 $ / hour

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:

`(40 hours)/(1 week) * (4 weeks)/(1 month)  * (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

`(23.920 \$)/(1 year) * (1 year)/(1920 hours)  = (12.4583 \$)/(hour)`