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VMariaS [17]
3 years ago
9

You and a roommate are hosting a party. You invite 10 other pairs of roommates. During the party you poll everyone at the party

(excluding yourself) and ask how many hands each person shook. Two conditions: a) Each person did not shake his roommate's hand. b) Each person shook a different number of hands. Question: How many hands did you roommate shake?
Mathematics
1 answer:
solong [7]3 years ago
5 0
The orders of pairs are 23
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<em>Additional comment</em>

The units analysis tells you how to work this problem. In order to get from mg/min to mL/min, you need to multiply by a factor with units mL/mg. Those units are the inverse of the concentration in mg/mL, which is found from g/mL.

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