A recipe calls for 3 avocados for each bowl of guacamole.
Let avocados = a, guacamole = g:
g = a/3
You have 17 avocados. Plug in 17 for a
g = 17/3
g = 5.66 (continuing).
However, they are asking for only "full bowls", which means you will not count any parts, and you will not round.
5.66 will become 5
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5 is your answer
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hope this helps