Answer: C) The student made an error in step 3.
Step-by-step explanation:
When dividing by a negative while working with inequalities, you must "flip the sign." Thus, there is an error in step 3.
N.B. The answer could very well be interpreted as B), but I believe C) is the best and most defensible answer.
Hope it helps :) and let me know if you want me to elaborate.
34 small boxes for each large box.... I just added 24 and 10
Let # of child tickets = c
# of adult tickets = 3c
3c (8.30) + c (5.20) = 1173.90
24.9c + 5.2c = 1173.90
30.1c=1173.90
c=39 tickets
3c=39x3= 117 tickets
Therefore, 39 child tickets and 117 adult tickets were sold on monday, thus, a total of 156 tickets were sold.
A., B., C., D., are NOT true. I think this is a trick question. Lol