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anonymous
 5 years ago
At 1000 hours an aircraft starts from A to fly to B, a flight which will take 4 hours. At 1042 a second aircraft starts the same journey and will complete the flight in 2 hours 30 minutes. If the distance from A to B is 800 miles, at what time will the aircraft be the same distance from B?
anonymous
 5 years ago
At 1000 hours an aircraft starts from A to fly to B, a flight which will take 4 hours. At 1042 a second aircraft starts the same journey and will complete the flight in 2 hours 30 minutes. If the distance from A to B is 800 miles, at what time will the aircraft be the same distance from B?

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amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0when the distance between the 2 planes = 0 then they are the same distance from pointB

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0800/4 is the speed of the 1st aircraft 800/(2.5) is the speed of the second aircraft..

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0200 mph and 320 mph sound about right...

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0does 1042 means 42 minutes after 10?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yeah I got the speeds

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thats right 45 mins after 10

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0ok, so if we convert 45 minutes into a fraction of an hour, we will be able to work with it better.... 3/4 or .75 of an hour....

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.042 mins* but thats where I got stuck

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0ok... 60/42 is a good enough fraction to work with :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0divide each by 3... 20/14....10/7.... 15/7 seems good... you agree?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0these are the options given: a 1110 hrs b 1124 hrs c 1142 hrs d 1152 hrs

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0lets make some equations then... 200x + 10/7 = D 320x = D does that make sense to you?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0I think i missed it... we need to know hoe far the first plane has traveled and add that...not the hours...lol

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0200(10/7) is the "added" distance, or the advantage that the 1st plane has...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ermm .. Y would it be + 10/7. Dont get how the + comes into it

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0200x + 285.7 = D 320x = D where D is the equal distance flown .... hows that?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yeah that makes sense

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0makes better sense, but what doesnt make sense to me yet is that it is less than an hour, but the 1st plane has gone more than 200? gotta see where I missed that at :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0200(60/42) = 190.5 looks alot better, musta got it turned around in me head somewhere :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.07/10 should be our multiplier... 60 is the whole, 42 is the part; part/whole = percent.... .7

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0200(.7)= 140... that HAS to be it lol maybe

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0One way to consider it: Look at the time when only the first is flying; it is going to 200mph for 42 minutes, so will end up 140miles away from A. NEXT, look at the motion after they are both moving. If you apply a vector of 200mph to both planes, the one that set off first is effectively stationary, so you only need to consider how long it takes the second plane to 'catch up' the 140 mile head start at (320  200)mph = 120mph, which is just time = distance over speed. Add the initial 42 minutes and you're done.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0200/60 tells us miles per minute; times 42 equals distance traved in 42 minutes...

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0200x+140 = 320x 140 = 320x  200x 140 = 120x x = 140/120 = 14/12 = 7/6... 1 hour and 6/60 minutes.... if it agrees with Newtons :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh that make sense so it should be 200(42/60) = 140 (I.e the distances travelled by plane A)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0Yep.... 1042 + 0106 = 1148...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0but these are the options: a 1110 hrs b 1124 hrs c 1142 hrs d 1152 hrs

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.01 hour and 1/6 of another .... ack!! my math is off today...

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.01hour and 10 minutes... double check that :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0But yes, I agree. Time = 42 minutes + (140/120) minutes = 42 + (7/6) hours = the same as yours.
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