How many ways can you write the ratio 7:20 as a fraction without zeros at the end?
1 answer:
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The common difference can be found from
The first term of the sequence can be found from either of the given terms.
The sum of 40 terms is
The sum of the first 40 terms is 3800.
The first term of the sequence can be found from either of the given terms.
The sum of 40 terms is
The sum of the first 40 terms is 3800.
