hamdaalmuhairi1996 hamdaalmuhairi1996

18-10-2020
Mathematics

contestada

The 18th term of an arithmetic sequence is 49 and the first term is 15.
The 10th term of the sequence is _________.

Respuesta :

nicole32406 nicole32406

18-10-2020

Answer:

33

Step-by-step explanation:

49-15=34

34/17=2

For this sequence, you can write this function:

f(x)=15+2(x-1)

Check:

f(18)=15+2(18-1)

f(18)=15+2(17)

f(18)=15+34

f(18)=49

So:

f(10)=15+2(10-1)

f(10)=15+2(9)

f(10)=15+18

f(10)=33

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