11) Type the missing number in this sequence:
49,
43,
37.
31,
19,
13

Sequence is take away 6 each time so the next three terms are

7

1

-5

you need a common difference between consecutive terms to be constant, like 1,2,3,4 or 2,4,6,8, or 1,3,6,9

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.