Answer:
y = 4
Step-by-step explanation:
Since this is an equilateral triangle, all the sides are equal.
7y + 5 = 9y - 3
5 + 3 = 9y - 7y
2y = 8
y = 8 ÷ 2
y = 4
In order to determine the correct answer, it would be helpful to set up equations. We do as follows:
Let x = students
y = adults
x + y = 215
.50x + 2y = 250
SOlving simultaneously, we have:
x = 120 students
y = 95 adults
Hope this answers the question. Have a nice day.
