Answer: 105 members.
Explanation: 840/8=104
Answer:
C. 42.
Step-by-step explanation:
This is an arithmetic sequence with common difference d = 4 and first term a = -3.
Sum of n terms = (n/2)[2a + (n - 1)d]
Sum of six terms = (6/2)[2(-3) + (6 - 1)4]
= 3 * (-6 + 20)
= 42.
Answer:
252
Step-by-step explanation:
use a calculator....
bye....
Answer:
The number of problems solved = 2000
Step-by-step explanation:
Let us assume the monthly quota of problems be x
number of problem solved in first week = 25 % of x =
number of problems solved in 2nd week = 110% of (problems solved in 1st week)
=
=
number of problem solved 3rd week= 60% of ( problems solved in 1st and 2nd week)
=
=
=
number of problem solved in 4th week =
now we have
number of problems solved in ll 4 weeks = x
Hence the number of problems solved = 2000