Math

posted by .

4 hours 18 min 11 sec- 3 hours 15 min 4 sec = 1 h 3 min 7 s

6 hours 7 minutes 42 sec + 2 hrs 12 min 38 sec=
8 hours 19 minutes 80 seconds

  • Math -

    First one is right.

    Second, 80 seconds = 1 minute 20 seconds

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    a car covers a distance of 200 mile in 3 hours. How many kilometers will it travel in 25.0 minutes?
  2. Math

    1. Find y'(x) when xsecy - 3y sinx = 1 a) (3ycosx - sec y) / (xsec^2y - 3sinx) b) (3cosx - sec x) / (xsecytany - 3sinx) c) (3ycosx - sec y) / (xsecytany - 3sinx) d) (3ycosx - secytany) / xsec^2y - 3sinx) This is what I did: xsecy - …
  3. math

    289 min = 4 hr and 49 min 213 min = 3 hr and 33 min 345 min = 5 hr and 45 min 197 min = 3 hr and 17 min I have to change these minutes on the left to hours and minutes. could you check if I have them correctly. Thank you for your help
  4. Math

    What is the easiest way to figure this out?
  5. math

    What is the conversion factor sequence for units from ft./sec. to km./hr.?
  6. Math

    What is the sequence of conversion factors for units if you change from ft/sec. to km/hour?
  7. math

    use : .# x 6 = minutes I did try to do it but came up with numbers like 5.732360456. Plz help P.S. Trying to help my son but can't 0.5 ='s how many hours and minutes 2.5 ='s how many hours and minutes 2.3 ='s how many hours and minutes …
  8. Math

    1. Mackenzie spent a lot of time on her project for Columbus Day. On Monday she worked for 2 hours and 33 minutes on making a poster. On Tuesday she worked for 1 hour and 28 minutes drawing a picture of Columbus. On Wednesday she spent …
  9. Math

    1. Mackenzie spent a lot of time on her project for Columbus Day. On Monday she worked for 2 hours and 33 minutes on making a poster. On Tuesday she worked for 1 hour and 28 minutes drawing a picture of Columbus. On Wednesday she spent …
  10. Math

    Express 2 hours 16 min 30 sec as a fraction of 5 hours 25 min

More Similar Questions