Hey There!
If i got this down right,
An = A1 + (n - 1)d
Sn = A1 + A2 + A3 + ... + An
A1 is given by
Sn = n (A1 + An) / 2
For Example
An = A1 + (n - 1)d
= 6 + 3 (n - 1)
= 3 n + 3
n = 50
Hope This Helps!!!
Answer:
x = 7
Step-by-step explanation:




Answer:
Step-by-step explanation:
<em>Probability = favorable outcomes / total outcomes</em>
- P(odd) = 3/6 = 1/2 (there are 3 odd numbers out of 6 on a dice)
- P(no 1) = 5/6
- P(odd and no 1) = 1/2*5/6 = 5/12
Step-by-step explanation:
- 4x-(x+7)=2(x+3)
- 4x-x-7=2x+6
- 3x-2x=6+7
- x=13
hope it helps.