Marty and skip bought backpacks that are the same size. each hold 9 kilograms. how much weight can the two backpacks hold?
2 answers:
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Answer:
243 ways
Step-by-step explanation:
Calculating the number of posible outcomes:
We have n trials.
Each trial has m possible outcomes.
The total number of outcomes is:
In this question:
5 questions, that is, 5 trials, so
Each question has 3 options(True, false or unanswered). So
How many ways?