Whitney, Andrew, and Lena all have summer jobs. Whitney earns $312 in 26 hours of work. Andrew earns $451 in 41 hours of work. Lena earns $10 per hour. Who earns the most money per hour?
To determine who earns the most money per hour, we need to compare the earnings per hour for each person.
Let's start by finding the earnings per hour for Whitney and Andrew.
Whitney earns $312 in 26 hours of work, so we can calculate her earnings per hour by dividing the total earnings by the number of hours she worked:
Earnings per hour for Whitney = $312 / 26 hours = $12 per hour
Similarly, Andrew earns $451 in 41 hours of work, so his earnings per hour can be calculated as:
Earnings per hour for Andrew = $451 / 41 hours = $11 per hour
Now let's compare Whitney's and Andrew's earnings per hour. We see that Whitney earns $12 per hour, while Andrew earns $11 per hour.
Lastly, Lena earns a fixed rate of $10 per hour, which is lower than both Whitney and Andrew.
Therefore, among the three of them, Whitney earns the most money per hour with a rate of $12 per hour.