Greg bought 4 notebooks for $6.40. which equation can be used to determine the price, p, in dollars, of 1 notebook?

Equation : 4 × p =  $6.40 and P = $1.60.

Step-by-step explanation:

Given  : Greg bought 4 notebooks for $6.40.

To find : Which equation can be used to determine the price, p, in dollars, of 1 notebook.

Solution : We have given that

Cost of 4 notebook = $6.40.

Cost of 1 notebook represent by p

We can write 4 as 4 × 1

Cost of 4  notebook = $6.40.

Cost of 1 notebook represent by p

Then , 4 × p =  $6.40.

On dividing by 4 both sides

So,  P =   .

P = $1.60.

Therefore,  Equation : 4 × p =  $6.40 and P = $1.60.  

, 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

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