SOLUTION: a crow left Valley College at 2:00 pm and flew straight east at 21 miles per hour. another crow left Valley College at 3:oo pm and flew straight north at 24 miles per hour. how far
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Question 815696: a crow left Valley College at 2:00 pm and flew straight east at 21 miles per hour. another crow left Valley College at 3:oo pm and flew straight north at 24 miles per hour. how far apart (as the crow flies) are they at 6:00 pm (to the nearest tenth of a mile) Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! s = d / t
d = s * t
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east crow at 6 pm:
t = 6 - 2 = 4 hours
d = 21 * 4 = 84 miles
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north crow at 6 pm:
t = 6 - 3 = 3 hours
d = 24 * 3 = 72 miles
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distance between crows at 6 pm:
use pythagorean thm:
h = sqrt( aa + bb )
h = sqrt( 84^2 + 72^2 )
h = sqrt( 7056 + 5184 )
h = sqrt( 12240 )
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h = 110.6 miles
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