Asked by Linda

The sum of the first 10 terms of an arithmetic series is 145 and the sum of its fourth and ninth term is five times the third term. Determine the first term and constant difference
Answered by oobleck
just use what you know to find a and d:
10/2 (2a+9d) = 145
a+3d + a+8d = 5(a+2d)
Answered by Ronaldo
Do my homework
Answer
29
There are no AI answers yet. The ability to request AI answers is coming soon!