This equation shows how the total pages of notes in Brendan's notebook depends on the number of hours he spends in class.

Question

p = h + 13

The variable h represents the hours he spends in class, and the variable p represents the total pages of notes taken. In all, how many hours will Brendan have to spend in class before he will have a total of 18 pages of notes in his notebook?

Answer 1

To find out how many hours Brendan needs to spend in class to have a total of 18 pages of notes (p = 18), we can substitute 18 into the equation \( p = h + 13 \):

\[ 18 = h + 13 \]

Next, we solve for \( h \) by subtracting 13 from both sides:

\[ 18 - 13 = h \]

This simplifies to:

\[ h = 5 \]

Therefore, Brendan needs to spend 5 hours in class to have a total of 18 pages of notes in his notebook.