Answer:
Step-by-step explanation:
Assuming the maximum score for the final is 
, we can multiply each score by its respective course weight and add them together to give a final score. If your friend did receive this maximum score of , their overall grade for the course would be:
.
To find the minimum score they need to earn a 75% for the course, we set up the following equation:
, where 
is the minimum score she needs.
Solving, we get:
.
So we are given a system:
Substitute x = 2 we get the system:
Multiply the first equation by -5 and the second by 2 we get the system:
Adding the two equations we get :
We find the value of y by using any of the other equations like this:
Final solution:
Answer:
8 to the six power
Step-by-step explanation:
Divide 294 by 14 and you get 21. I hope it helps and that’s the answer. :)
