We want to use a linear equation to predict the time that it would take to read 900 pages.
The solution is: Mrs. Thompson's class will need 405 minutes to complete the 900 pages.
Now let's see how we got the solution:
Sadly, you didn't write the variables in the equation, so I will assume that the linear equation is:
[tex]y = -\frac{20}{9}*x + 900[/tex]
Where:
To find the time it would take to read the 900 pages, we need to find the value of x such that y = 0, this means that we need to solve:
[tex]0 = y = -\frac{20}{9}*x + 900\\\\0 = -\frac{20}{9}*x + 900[/tex]
The solution will be given by:
[tex]0= -\frac{20}{9}*x + 900\\\\\frac{20}{9}*x = 900\\x = (9/20)*900 = 405[/tex]
This means that Mrs. Thompson's class will need 405 minutes to complete the 900 pages.
If you want to learn more, you can read:
https://brainly.com/question/15125547
