During a promotion at an aquarium, the number of adult tickets sold was 4 times the total number of student tickets and senior citizen tickets sold. The number of
student tickets sold was three times that of senior citizen tickets. 142 more student
tickets than senior citizen tickets were sold. How many adult tickets were sold?
Step by step solving

Step-by-step explanation:

Let Number of senior citizen tickets

sold = x

Number of students tickets sold = 3.x

Number of adult tickets sold = 4 x 3x

= 12x

/* According to the problem given */

3x = x + 142

+ 3x – x = 142

2 x = 142

142 == 2

> x = 71

. Number adult tickets sold

= 12x

= 12 x 71

= 852

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)