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.
Answer:
0.4375
Step-by-step explanation:
Answer:
73.5
Step-by-step explanation:
To find the mean, sum the data and divide by the amount of data
mean = 
=
= 73.5
Answer: 9 3/4 feet long
Explanation:
1 1/2 x 6 1/2 = 3/2 x 13/2 = 39/4 = 9 3/4 feet long
Answer:
12
Step-by-step explanation:
15 - 3 = 12