Answer:
A:∑j=15(2j−5)
Step-by-step explanation:
a = -3
d = -1 - (-3) = -1 + 3 = 2
j-th term: a + (j-1)d
-3 + (j - 1)(2)
-3 + 2j - 2
2j - 5
4 I think is the right answer but I’m not sure so sorry if u get this wrong
Answer:
x - 11 = 15
Step-by-step explanation:
x is rpthe unknown number
Answer:
The answer to your question is 8649 persons
Step-by-step explanation:
Data
Equation y = 11.89x - 15345.2
Year = x = 2018
Process
1.- Just substitute x in the equation
y = 11.89 (2018) - 15345.2
2.- Multiply 11.89 by 2018
y = 23994.02 - 15345.2
3.- Subtract to find x
y = 8648.82
4.- Conclusion
There was 8649 persons in 2018.
