lolo8787
06.05.2020 •
Mathematics
Find the inner product for (4,8) × (6,-3) and state wheter the vectors are perpendicular
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Ответ:
6 days
Step-by-step explanation:
Given that one student can paint a wall in 10 minute and another student in 15 minutes.
Since if number of persons increase, painting time decreases, this is a question of inverse proportion
Hence if they work together they can paint in one day
i.e. work completed in 1 day when they work together
=
Hence in 6 days they can together complete the full work