I believe it's C E.
They both look pretty equal and line up perfectly with E. Hope this helps!
Answer:
(-1, 5)
Step-by-step explanation:
3 [x + y = 4]
3x + 3y = 12
- 3x + 7y = 32
-4y = -20
y = 5
x + 5 = 4
x = -1
Add all the minutes together, then divide by the number of students:
21+35+77+48+24+29+37+98+30+7 = 406 total minutes
10 students.
Average = 406 / 10 = 40.6 minutes per week.
The answer is A.
Answer:
81.63
Step-by-step explanation:
40: 49*100 =
(40*100): 49 =
4000: 49 = 81.63
