Answer:
48 ways
Step-by-step explanation:
Let me take a guess
S₁_₁₅ = (1+15)*7 + 8 = 120
There are 48 combinations of distinct digits from 1 to 15 to make 20
120-20=100
So every 20 has a corresponding 100
I wish I got it right, otherwise report it.
Somebody help me out please
2 answers:
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Answer:
73.5
Step-by-step explanation:
To find the mean, sum the data and divide by the amount of data
mean =
= = 73.5