Answer: 11.636 = 12 tickets to a whole figure
Step-by-step explanation:
Let the number of adult tickets be x and y represent children tickets.
From the question;
x + y = 28 ....... equation (i)
(7.25*x) + (y*4.50) = 158
7.25x + 4.50y = 158 ........ equation (ii)
From equation (i);
x + y = 28
y = 28 - x ...... equation (iii)
Put equation (iii) into equation (ii)
7.25x + 4.50(28 - x) = 158
7.25x + 126 - 4.50x = 158
Collect like terms and subtract
2.75x = 32
x = 11.636 approximately 12 to a round number.
Put x = 11.636 into equation (i)
11.636 + y = 28
y = 28 - 11.636
y = 16.364 approximately 16 to a whole number
