11x represents the fiction
X represents the nonfiction book
11x+x=312
12x=312
Divide both by 12
X=26
To find the fiction you have to do 11 times 26
11•26=286
To check the answer you add 286 and 26
If it adds up to 312 the answer is correct
Its 8
not sure how to show the work but drew a pic and its 8
The standard deviation of the set is 5.2
To find standard deviation, we take the square root of the variance.
Answer:
4
Step-by-step explanation:
you cant simplify a hole number
