A boy cuts the distance of the first 2/5 of his total cutting distance at the speed of v and the rest of the distance at the speed of 2v. What is its average speed all the way?
ANSWER IS 10V/7
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I don't know the answer
Explanation:
tgbvv
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Answer:
the inner tissue (parenchyma) of a leaf, containing many chloroplasts.
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