Asked by Nina

Given the third term of an arithmetic sequence less than the fourth term by three. The seventh term is two times the fifth term. Find the common difference and the first term.

Answers

Answered by Steve
since the terms have a constant difference, the difference is 3.

a+6*3 = 2(a+4*3)
a+18 = 2a+24
a = -6

sequence is -6,-3,0,3,6,9,12,15,18,21,24
T7 = 12 = 2*6 = 2T5
Answered by UNKNOWN
I CANT GET IT. PLS LIST DOWN ALL THE SOLUTIONS ONE BY ONE. SO THAT I CAN UNDERSTAND. THANK YOU SO MUCH!!!
Answered by UNKNOWN
ANYONE? PLS HELP ME! MY FRIEND A.K.A MY ROOMATE NEED TO SOLVE THIS QUEST ASAP. THANKYOUUUUUU 😘
There are no AI answers yet. The ability to request AI answers is coming soon!

Related Questions