# math

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in a high school there are 27 hockey players and 15 soccer players. if 8 persons played both sports, how many different people played in these sports.

• math -

Draw a Venn diagram
It overlaps 8 (Intersection of hockey and soccer sets)
27 - 8 =19 play only hockey
15 - 8 = 7 play only soccer
8 play both
so there are 19+7+8 players total

• math -

thanks a lot, so is the answer those numbers added up?

• math -

find the 12th term of the harmonic secquence 1/2, 1/6,1/10...

• math -

3
8 × 5
4

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