pegflans314
20.08.2019 •
Mathematics
Two jets leave an airport at noon, one flying north at r mi/h, the other flying south at twice that speed. after 3h how far apart are the planes
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Ответ:
is ' 2r ' miles per hour. They're flying exactly away from each other, so the
space between them is increasing at the rate of ' 3r ' miles per hour.
After 3 hours, the distance between them is
(3r miles/hour) x (3 hours) = 9r miles.
Ответ:
my favorite color is blue and red
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