Answer:
9 hours
Step-by-step explanation:
What we know:
- Angie has already written 19 pages
- Angies writes 1 page per hour
First, we can create the following equation to model this scenario:
Let x be equal to the number of hours that pass.
Total number of pages=1x+19
Now, because Angie wants to write 28 pages in total, we can plug that into the left side of the equation and solve for x, the number of hours.
28=1x+19
Subtract both sides by 19
28-19=1x+19-19
9=1x
x=9
Therefore, Angie would have to spend 9 hours to write a total of 28 pages.
I hope this helps!