Answer: 1500 children and 700 adults attended.
Step-by-step explanation:
Let x represent the number of children that attended the mall that day.
Let y represent the number of adult that attended the mall that day.
One day 2200 people entered the mall. This means that
x + y = 2200
Admission fee at a mall is 1.50 for children and 4.00 for adults. The total amount that was collected on that day was $5,050. This means that
1.5x + 4y = 5050 - - - - - - - - - - - - -1
Substituting x = 2200 - y into equation 1, it becomes
1.5(2200 - y) + 4y = 5050
3300 - 1.5y + 4y = 5050
- 1.5y + 4y = 5050 - 3300
2.5y = 1750
y = 1750/2.5
y = 700
x = 2200 - y = 2200 - 700
x = 1500
