K=8k+28
subtract 8k from both side
-7k = 28
divide both side by -7
k= -4
the distance between cd rounded to the nearest tenth is ≈ 7
To solve this, I would just find what two adult tickets and one child ticket wold be worth.
To find that, just do:
5.20 + 9.90 * 2, which makes 25.
So now you just find how many 25s are in 900, or 36.
So 36 children's tickets were sold that day.
Hope I helped :)
If you would like to know how many boys play video games daily, you can calculate this using the following steps:
55% of 80 = 55% * 80 = 55/100 * 80 = 44
Result: 44 boys play video games daily.
6h+1-h+3
=5h+4
because 6h-1h is 5h and 1+3 is 4
