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Mathematics 13 Online
OpenStudy (anonymous):

two planes leave an airport the same time and travel in opposite directions one plane averages 300 miles per hour, and the other plane averges 600 miles per hour. when will they be 2700 miles apart A. 2.25 hr B. 3 hr C. 4.5 hr D. 7hr

OpenStudy (anonymous):

@Haseeb96

OpenStudy (anonymous):

@cj49

OpenStudy (anonymous):

@sunnyshores

OpenStudy (anonymous):

plz help @Isaiah.Feynman

OpenStudy (anonymous):

@triciaal

OpenStudy (anonymous):

@cwrw238

OpenStudy (anonymous):

@ganeshie8

OpenStudy (anonymous):

is it b?

OpenStudy (isaiah.feynman):

Okay, relative velocity. The two planes are moving away from each other at 600+300 mph = 900 mph.

OpenStudy (anonymous):

a

OpenStudy (isaiah.feynman):

So when they are 2900 miles apart, how much time would have elapsed? |dw:1411413993538:dw|

OpenStudy (anonymous):

its a right

OpenStudy (isaiah.feynman):

So, 2900 miles/900mph = ?

OpenStudy (anonymous):

its b

OpenStudy (isaiah.feynman):

Okay. Understand?

OpenStudy (anonymous):

yes thx so its b right

OpenStudy (anonymous):

i got hunna thx

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