Answer:
Yes the sequence is arithmetic
The common difference is 6
Step-by-step explanation:
Determine whether the following sequences are arithmetic. If so, identify the common difference.
9, 15, 21, 27, ...
The sequence given in the above question is arithmetic because it follows the formula
Un = a + (n -1)d
Where
a= First term
n = Number of terms
d = Common difference
The common difference is calculated as the
Second term - First term
15 - 9
= 6
or the Third term - Second term
21 - 15
= 6
or the Fourth term - Third term
= 27 - 21
= 6
Therefore, the Common difference = 6
Answer:
The rate is 47.5 miles per hour :D
Step-by-step explanation:
Answer:
two games must be won by the team
Step-by-step explanation:
Let the no. of games played by x, since team
does not lose any more games.
Then total game won = 6+x
total game lost = 4
win: loss = 6+x : 4
given ratio of win and loss = 2:1
6+x : 4 = 2: 1
6+x = 8
=> x = 8-6 = 2
Thus, two games must be won by the team
then total win will be = 6+2 = 8
and loss = 4
ration of win : loss = 8:4 = 2:1