How many nickels and dimes are in $1.20 if there are six times more nickels than dimes
2 answers:
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Answer:
7
Step-by-step explanation:
Common ratio of 3 so 21/3 = 7
The video will end at 4.20 PM (4.50 - 30 mins). So it starts at 3.15 PM and ends at 4.20 PM. So it is 1 hour and 5 minutes.
20 possibilities based on this as a combination not a permutation, 6 nCr 3 = 20
The answer is 8i.
i = √(-1)
√(-64) = √((-1) * 64)
= √(-1) * √64
= i * √8²
= i * 8
= 8i
