Dan sold 40 concert ticket in 5 days. Each day he sold 3 tickets more than the previous day. What is the number of ticket he sold on the third day?

8

Step-by-step explanation:

Let x be the first day.

x + x + 3 + x + 6 + x + 9 + x + 12 = 40

5x + 30 = 40

x = 2

The third day = x + 6 = 8

Hope this helps :)

correct answer is infinitely many solutions

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

solving the above equation:

4x + 6 = -4 +4x +10

combining like terms

4x -4x = -4+10-6

0=0

since both sides are 0=0, we end up into true statement it means it has infinite many solutions.

so correct answer is infinitely many solutions