First term a1 = 6+5 = 11
second term = 12+5 = 17
common difference = 6
Sum of n terms:-
Sn = (n/2) [ 2a1 + d(n - 1)]
Sum of 30 terms:-
S30 = (30/2)[ 2*11 + 6(30-1)]
= 15 * ( 22 + 174)
= 15 * 196
= 2940 Answer
Answer:
Step-by-step explanation:
<h2>
the answer is -52863</h2><h2>
</h2>
Answer:
The resort wants 1,536 visitors each week.
Step-by-step explanation:
512 x 3 = 1536
Times three is like tripling.
Answer:
20kph
Step-by-step explanation:
10 * 2 = 20
