Answer:
last two numbers are 10,so their mean is 10
adding all means give us the mean of total data
Step-by-step explanation:
1+9,2+8,3+7
1+9=10,2+8=10, fhdghdghhdsdasgsfgadg
Answer: 7%
Step-by-step explanation:
Answer:

Step-by-step explanation:
15 1/2 times 2 1/8 ??

15 ×2 =30 +1 =31/2
2×8=16+1=17/8


527/16

Answer:
Step-by-step explanation:
X/25=16/x
Cross multiply to get
X^2=square root 400
Un square to get 20
It’s 20 meters