Ou have violin lessons every fourth day and singing lessons every sixth day. Today you have both lessons. If today is the first of the month, how many times in the next 30 days will you have both the lessons on the same day?

answer: yes youre right.

step-by-step explanation:

b.my answer is b.

brainliest

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for