how many terms are in the sequence 13,16,19,22....39?
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Answer:
Step-by-step explanation:
Actually the questionis wrong the last term should be 40 instead of 39.then u can get otherwise u can't.
40 is the last term which is equal to
a +(n-1)d
Which is
13+(n-1)3=40
Simplify it
We'll get
n-1=9
n=10
The answer is 10 terms
Let the three numbers be: x-1, x and x+1.
-Therefore, x-1 + x + x+1 =3x = 39
-Hence x, the middle number is 13.
-The other two numbers are 12 and 14.: