Asked by Glory
The 5th term of an arithmetic progression is 23 and the 12th term is 37.find the third term and common different
Answers
Answered by
Reiny
Just use your definitions:
"5th term of an arithmetic progression is 23"
---> a + 4d =23
"the 12th term is 37" --> a + 11d = 37
You have two equations in two unknows.
Solve them.
Hint: I would subtract one from the other.
Let me know what you get.
"5th term of an arithmetic progression is 23"
---> a + 4d =23
"the 12th term is 37" --> a + 11d = 37
You have two equations in two unknows.
Solve them.
Hint: I would subtract one from the other.
Let me know what you get.
Answered by
Lihle
a + 4d=23
a + 11d=37
a + 7d=14
a +7d÷7 =14÷7
1a + d =2
a + 11d=37
a + 7d=14
a +7d÷7 =14÷7
1a + d =2
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