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31 votes
31 votes
Question

Water is added or drained from a tank each day. The first day, 910 of a gallon is added to the empty tank. The second day, 710 of a gallon is drained from the tank. The third day, 810 of a gallon is added to the tank. The fourth day, 610 of a gallon is drained from the tank. The amount of water in the tank after 15 days is given by

910+(−710)+810+(−610)+⋯+310+(−110)+210.

How much water is in the tank after 15 days? Write your answer as a decimal.

User NSTuttle
by
3.2k points

1 Answer

24 votes
24 votes

Answer:

ililil

Explanation:

User Marko Kohtala
by
3.2k points
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