Answer:
the fifth number is 11
Step-by-step explanation:
8,11,13 and 17, x
the mean is =12 ( which means the sum of the terms divided by the numbers of terms )
to find the mean :
(8+11+13+17+x)/5 =12
5*12=49+x
60-49=x
x=11
The answers are 5 x (80 x 7) and 80 fives plus 7 fives
Answer:
A. Net A if you fold it up you will get that. B. AB is 3 in BC is 5 in CD is 8.6 in. C. 20
Step-by-step explanation: