third grade math

posted by .

reed's bookstore is open 9 hours each day. it opens at 9:30a.m. when does it close? i know the answer but i don't know how to show my work. please help.

Two ways to do it.
12:00 noon - 9:30 = 2:30 hours in the morning. That leaves
6:00 hours - 2:30 minutes for the afternoon and that = 3:30 hours.
Then 12:00 noon + 3:30 hours = 3:30 pm.

Second way. Do you know how to tell time by the 24 hour system? If so, then
9:30 + 6:00 = 15:30
and 15:30 on the 24 hour system is 3:30 pm.
I hope this helps.

thank you.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    Number problem. You work 7 hours (h) one day, 5 h the second day, and 6 h the third day. How long did you work, as a fraction of a 24-h day?
  2. algebra

    the new school has exactly 1000 lockers and 1000 students. on the first day of school, the students meet outside the building and agree on the following plan: the first student will enter the school and open all of the lockers. the …
  3. math

    Sara has gone to work for 60 days. On 39 of those days she arrived at work before 8:30A.M. On the rest of the days she arrived after 8:30A.M What is the experimental probability that she will arrive at work after 8:30A.M the next day …
  4. math

    Carl hired 6 people to work in his shipping department for a week at 12 hours a day. However, after working only 6 hours on the third day, the work was completed. How many hours of wages does Carl owe to the workers?
  5. Math

    Carl hired 4 people to work in his shipping department for a week at 8 hours a day. However, after working only 4 hours on the third day, the work was completed. How many hours of wages does Carl owe to the workers?
  6. Math

    14. a. A Restaurant is open 24 hours a day. The manager wants to divide the day into work shifts of equal length. The shifts should not overlap, and all shift durations should be a whole number of hours. Describe the different ways …
  7. English

    1. When is the library open? It is open from 8 a.m. to 5 p.m. 2. What time is the library open?
  8. math

    a resturant is open 24 hours a day. T he manager wants to divide the day into work shifts of equal length. The shifts should not overlap. All shift durattions should be a whole number of hours. Describe the different ways this can …
  9. math

    Vanessa typically works 8 hours per day in a normal 5 day work week. Last week, however, Vanessa had to take 90 minutes off on Tuesday, 45 minutes off on Thursday, and she left two and a half hours early on Friday. How many hours did …
  10. math

    the 20 students in Mr. Wolf's 4th grade class are playing a game in a hallway that is lined with 20 lockers in row. the 1 student starts with the first locker and goes down the hallways and opens all lockers. the 2 student starts with …

More Similar Questions