Answer:

Step-by-step explanation:

Let's substitute the first equation into the second one.

- Multiply by
and bring all the terms to one side.
I'll use my graphical calculator to solve this but you could factor:
(All rounded to 2 decimal places)
Now we can substitute these
values into an equation for
.


Answer:
120
Step-by-step explanation:
If 6 = 5%, then 6 = 1/20 of the total grade. 6×20= 120
It’s the second one(40 pages/ 1 hour)