Final answer:
Susan will need to write for 24 hours to have only 1 page left to write in her research paper, based on the equation p = -2h + 49.
Step-by-step explanation:
The given equation is p = -2h + 49, which represents the number of pages left to write (p) in Susan's research paper as a function of the number of hours she has spent writing (h). To find the number of hours Susan must write to have only 1 page left, we are looking for the value of 'h' when 'p' equals 1.
- First, we substitute 'p' with 1 in the equation, which gives us 1 = -2h + 49.
- Next, we solve for 'h' by subtracting 49 from both sides of the equation, resulting in -48 = -2h.
- Then, we divide both sides by -2 to isolate 'h', which results in h = 24.
Therefore, Susan will have to write for 24 hours to have just 1 page left to write in her research paper.