Asked by Rells
At 10:00 AM Two planes leave an airport. If the northbound plane flies 280 mph and the sound bound at 320 mph, at what time will they be 1000 miles apart?
I need help with explanations the questions keep changing :(
I need help with explanations the questions keep changing :(
Answers
Answered by
Reiny
let the time be t hrs
northbound went 280t miles
southbound went 320t miles
280t + 320t = 1000
t = 1000/600 = 5/3 hr or 1 hr 40 min
they are 1000 miles apart at 11:40 am
northbound went 280t miles
southbound went 320t miles
280t + 320t = 1000
t = 1000/600 = 5/3 hr or 1 hr 40 min
they are 1000 miles apart at 11:40 am
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