James spent $(2y2 + 6). He bought notebooks that each cost $(y2 − 1).
The expression to find the number of notebooks James bought is .
If y = 3, James bought notebooks.
clearly there are
(2y^2+6)/(y^2-1)
notebooks. So, plug in y=3 to find how many.
mdks
To find the expression to determine the number of notebooks James bought, we need to set up an equation using the given information.
Let's call the number of notebooks James bought "n".
We know that the total amount James spent is $(2y^2 + 6) and the cost of each notebook is $(y^2 - 1). So, we can set up the equation as follows:
n * (y^2 - 1) = 2y^2 + 6
Now, let's substitute y = 3 into the equation to find the number of notebooks James bought.
n * (3^2 - 1) = 2(3^2) + 6
n * (9 - 1) = 2(9) + 6
n * 8 = 18 + 6
n * 8 = 24
n = 24 / 8
n = 3
Therefore, when y = 3, James bought 3 notebooks.
The expression to find the number of notebooks James bought is n = (2y^2 + 6) / (y^2 - 1), and when y = 3, James bought 3 notebooks.