Asked by Cloud

The fifth term of an arithmetic sequence is equal to 6 and the sum of the first 12 terms is equal to 45. Find the first term and the common difference.
Answered by Steve
just crank it out using the formulas you already know:

a+5d = 6
12/2 (2a+11d) = 45
Answered by Steve
oops - that's a+4d=6

But I'm sure you caught that...
There are no AI answers yet. The ability to request AI answers is coming soon!