Answer:
arithmetic
Step-by-step explanation:
This is an arithmetic sequence since there is a common difference between each term. In this case, adding 2 to the previous term in the sequence gives the next term. In other words, an=a1+d(n−1) a n = a 1 + d ( n - 1 ) .
Answer:
3/7 of the class are boys
Step-by-step explanation:
we have :
a+b=c
a= girls =16
b=boys = 12
c= total= 28
a/c=16/28=4/7
b/c=12/28=3/7
so we have:
(3/7) * c= 12
(3/7) * 28=12
3/7 of the class are boys
Should be all real numbers