Answer:
an = 1/2 (n) (n+1)
Step-by-step explanation:
1,3,6,10,.........
3-1=2
6-3=3
Each term is different so there is no common difference. It is not an arithmetic sequence
3/1=3
6/3 =2
Each term is different so there is no common ratio. It is not a geometric sequence
1 3 6 10
+2 +3 +4
a1 = 1
a2 = 3
a3 = 6 = 2*3
a4 = 10 = 2*5
1/3 part of strawberry juice per 1 part of lemon juice
Assuming - m = price of each magazine:
Answer: 12/m (b)
It states that Deshawn bout SOME magazines not only one for $12.
If each magazine costs the same amount then we must divide to find how many magazines he bought for $12.
An expression having five terms which is equivalent to above term is :
