SOLUTION: At 10:30 am two planes leave New York, one flying east at 560 km/h and the other flying west at 640 lm/h. At what time will they be 2100 km apart?

Question 52706: At 10:30 am two planes leave New York, one flying east at 560 km/h and the other flying west at 640 lm/h. At what time will they be 2100 km apart?
Answer by rchill(405) (Show Source): You can put this solution on YOUR website!
The equation becomes 640x+560x=2100, where x is the amount of time. Combining the like terms we get 1200x=2100; dividing both sides by 1200, we get x=1.75 hours, which is the same as 1 hour 45 minutes. Therefore, the two planes will be 2100 miles apart at 12:15pm.
RELATED QUESTIONS
At 10:30 am two planes leave Houston, one flying east at 560 km/h and the other flying... (answered by josmiceli,DrBeeee)

at 10:30 am twp planes leave houston one flying east at 560 km/h and the other flying... (answered by psbhowmick)

at 10:30 A.M. two planes leave Houston, one flying east at 560 km/h and the other flying... (answered by rchill)

at 10:30 A.M two planes leave Houston, one flying east at 560 km/h and the other fliying... (answered by checkley75)

I need help setting up this problem: At 10:30 am two planes leave Houston, one flying... (answered by reviewermath)

I need help with solving a word problem that always stumps me when i try to complete it.... (answered by Edwin McCravy,stanbon)

At 10:30am two planes leave Houston, one flying east at 560km/h and the other flying west (answered by mananth)

At 1:30 pm, two planes leave Chicago, one flying east at 540 km/hour and the other flying (answered by ewatrrr)

At 10:30am two planes leave Houston, one flying east at 560 km/h and the other west at... (answered by mananth,MathTherapy)