A car drives east from point A at 39 kph. Another car starting from B at the same time, drives S 30° W toward A at 66 kph. B is 30 km away from A. How fast in kph is the distance between two cars changing after 30 minutes?
A car drives east from point A at 39 kph. Another car starting from B at the same time, drives S 30° W toward A at 66 kph. B is 30 km away from A. How fast in kph is the distance between two cars changing after 30 minutes?
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section2.3: Rules For Addition
Problem 14P
Question
A car drives east from point A at 39 kph. Another car starting from B
at the same time, drives S 30° W toward A at 66 kph. B is 30 km away
from A. How fast in kph is the distance between two cars changing after 30
minutes?
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