4glue sticks cost $7.76
in form of equation how will be the cost of 13

7.76(x) / 4 = Total cost

$25.22

Step-by-step explanation:

Given in the question that,

number of glue sticks that cost $7.76 = 4

To find the cost of 13 glue sticks first we need to find the cost of one glue stick, for that we will need cost of 4 sticks with 4

4    >    $7.76

1     >    $7.76/4

                $1.94

Multiply the cost of 1 glue with 13

3  >    $1.94x13

               $25.22

Equation

7.76x/4 = Total cost

where x represent number of glue sticks

The answer is 16.64 feetyour welcome

, and

for

step-by-step explanation:

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

1 the 1st term, 3 the 2nd term, 6 the 3rd term,etc.

note the following:

from the 1st term (1) to the 2nd term (3), we go up by 2,from the 2nd term (3) to the 3rd term (6), we go up by 3from the 3rd term (6) to the 4th term (10), we go up by 4, andfrom the 4th term (10) to the 5th term (15), we go up by 5.

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