Thursday

February 11, 2016
Posted by **Jennifer** on Tuesday, May 1, 2012 at 11:25pm.

- Utech -
**Steve**, Wednesday, May 2, 2012 at 10:21amThere are 5 terms, with a total difference of -12, so d = -12/5

a + 3(-12/5) = 20

a - 36/5 = 20

a = 136/5

So, the sequence is

136/5, 124/5, 112/5, 100/5=20, 88/5, 76/5, 64/5, 52/5, 40/5=8, ...

- Maths -
**Nomsu**, Thursday, July 2, 2015 at 4:30pmThe sum of the 6 and 8 term of an ap is 142,if the 4 term is 49 calculate the first term