Lisa is taking two at a local college. She is 21 hours of homework a week with these two guys just the two classes or four hours each once a week on Tuesday and Thursday she wants to get a part-time job initial eight hours of sleep each night there are 160 hours in one week. How many hours can she work each week right and solve
To find out how many hours Lisa can work each week, we first need to determine how many hours she has left after accounting for her homework and sleep hours.
Lisa has 21 hours of homework each week plus 8 hours of sleep each night, which totals 21 + (8*7) = 21 + 56 = 77 hours.
We subtract these 77 hours from the total number of hours in a week, which is 160, to find out how many hours she has left for work: 160 - 77 = 83 hours.
Therefore, Lisa can work up to 83 hours each week.
To calculate how many hours Lisa can work each week, we need to subtract the time she spends on homework, classes, and sleep from the total number of hours in a week.
Total hours in a week: 160 hours
Hours of homework: 21 hours
Hours of classes: 4 hours per class * 2 classes = 8 hours
Hours of sleep: 8 hours per night * 7 nights = 56 hours
Now let's calculate the time Lisa spends on these activities and subtract them from the total:
Total time spent on homework, classes, and sleep:
21 hours (homework) + 8 hours (classes) + 56 hours (sleep) = 85 hours
Now, to find out how many hours Lisa can work, subtract the time spent on these activities from the total hours in a week:
160 hours (total) - 85 hours (homework, classes, and sleep) = 75 hours
Therefore, Lisa can work for 75 hours each week.
To solve this problem, we first need to determine how many hours Lisa is committed to each week. We can do this by adding up the hours she spends on homework, attending classes, and sleeping.
1. Homework: Lisa spends 21 hours per week on homework.
2. Classes: If Lisa has two classes, with each class meeting for four hours once a week, she spends a total of 4 hours x 2 classes = 8 hours in classes each week.
3. Sleep: Lisa needs 8 hours of sleep each night, so in a week, she requires 8 hours x 7 days = 56 hours of sleep.
Now, to find how many hours Lisa can work each week, we subtract these commitments from the total hours available in a week.
Total hours in a week = 160 hours
Total commitments:
Homework + Classes + Sleep = 21 hours + 8 hours + 56 hours = 85 hours
Hours Lisa can work each week:
Total hours in a week - Total commitments = 160 hours - 85 hours = 75 hours
Therefore, Lisa can work a maximum of 75 hours each week, considering her commitments to homework, classes, and sleep.