There are 207 students in the 9 classes at East Amwell Elementary School. At this rate, how many students are in 6 classes?
2 answers:
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Hey there :)
We can find the common difference here as it is an arithmetic sequence.
The common difference between each term is:
We can find the unknown term by:
{easier way in this example}
OR
by the formula for finding the nth term
a₆ =
{a₆ because it is the 6th term to be found, (6-1) the nth term minus 1}
a₆ =
However this way is not essential here as the previous term is given.
We can find the common difference here as it is an arithmetic sequence.
The common difference between each term is:
We can find the unknown term by:
OR
by the formula for finding the nth term
a₆ =
{a₆ because it is the 6th term to be found, (6-1) the nth term minus 1}
a₆ =
However this way is not essential here as the previous term is given.