The sum of the fifth and the sixth term of an AP is 30. If the third term is 5, find the first term. ...

      

The sum of the fifth and the sixth term of an AP is 30. If the third term is 5, find the first term.

  

Answers


Kavungya
a+4d+a+5d=30
2a+9d=30………(i)
a+2d=5………..(ii)
2a+9d=30
2a+4d=10
5d=20
d=4
a+2 x 4=5
a=5-8=-3
a=-3

Kavungya answered the question on September 21, 2019 at 07:12


Next: Use logarithms to evaluate:
Previous: Andika neno lenye mfumo ufuatao wa vitamkwa. Nazali ya ufizi + kipasuo cha kaakaa gumu + irabu ya juu nyuma + kizuiwa ghuna cha kaakaa...

View More Mathematics Questions and Answers | Return to Questions Index


Exams With Marking Schemes

Related Questions