The answer would be [20/7,30/7]
That gives you an idea of how long each day the student must study in order to maintain their GPA
7/8=0.875
Now in a day there is 24 hours
0.875x24=21 hour
Answer:
The two numbers are 3 and 5
Step-by-step explanation:

Multiply top equation by 4 to cancel out the Ys

Since X =5, we can plug it into either of the top two equations to find out the value of Y

To double check

Answer:
You'll be fine.
Step-by-step explanation:
Answer:
c. no solution
Step-by-step explanation:
6d + 3f = 12
2d = 8 - f
Multiply the second equation by 3
3*2d = 3(8-f)
6d = 24-3f
Substitute into the first equation for 6d
(24-3f) +3f = 12
Combine like terms
24 =12
This is never true, so there are no solutions