Answer:
0.0715
Step-by-step explanation:
Not much to explain
In meters per second it is 63,83
In feet per second it is 209,43
In Miles per hours it is 142,79
Lets work it out.
A(6) = 6 + (6-1)(-2)
6 + 5(-2)
6-10
-4
-4 would be your answer, unless it is A(n) = 6 + A(n-1)(-2)
Answer:
Number of messages Salma sent = 7
Number of messages Brian sent = 16
Number of messages Chang sent = 32
Step-by-step explanation:
Let
Number of messages Salma sent = n
Number of messages Brian sent = n + 9
Number of messages Chang sent = 2(n + 9)
Total messages sent = 55
n + (n + 9) + 2(n + 9) = 55
n + n + 9 + 2n + 18 = 55
4n + 27 = 55
4n = 55 - 27
4n = 28
n = 28/4
n = 7
Number of messages Salma sent = n = 7 messages
Number of messages Brian sent = n + 9 = n + 9 = 16 messages
Number of messages Chang sent = 2(n + 9)
= 2(7 + 9)
= 2(16)
= 32 messages
