A flight leaves Orlando, Florida, at 7:35 A.M. and arrives in San Francisco, California, at 10:15 A.M. Orlando is 3 hours ahead of San Francisco. How long did the flight last?

1 Answer
Taha Z.
Sep 13, 2017

5 hours and 40 minutes

Explanation:

Time in Orlando is 3 hours ahead, so:
#"Time in Orlando"=3 hours +"Time in San Francisco"#

Therefore time of arrival was 10:15 in San Francisco, therefore in Orlando it was:
#"Time in Orlando"=3 hours + 10:15=13:15#

To calculate flight time, we will have the time difference between departure and arrival time,
#Flight time=13:15-7:35#

We will do that by first converting hours to minutes which will make it easier for calculations
#1 "hour"=60 "minutes"#

#color(red)(13:15)=13 " hours" + 15 " minutes"#
#=13(60) + 15 " minutes"#
#= 780+15 " minutes"#
#color(red)(13:15=795 " minutes"#

#color(red)(7:35)=7 " hours" + 35 " minutes"#
#=7(60) + 35 " minutes"#
#= 420+35 " minutes"#
#color(red)(7:35=455 " minutes"#

#Flight time=13:15-7:35#
#=795-455=340 " minutes"#
#340 " minutes"=300 " minutes " + 40 " minutes"#
#=300/60 " hours " + 40 " minutes"#
#= 5 " hours " + 40 " minutes"#

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