Answer:
Weekly Gross Income: $800
Anual Gross Income: $41,600
Monthly Gross Income: $3,466.67
Step-by-step explanation:
Weekly: 40 x 20 = 800
Anual: 40 x 20= 800 800x52= 41,600
Monthly:41,600 / 12= 3,466.6666666666666666666666
Total tickets sold = 800
Total revenue = $3775
Ticket costs:
$3 per child,
$8 per adult,
$5 per senior citizen.
Of those who bought tickets, let
x = number of children
y = number of adults
z = senior citizens
Therefore
x + y + z = 800 (1)
3x + 8y + 5z = 3775 (2)
Twice as many children's tickets were sold as adults. Therefore
x = 2y (3)
Substitute (3) into (1) and (2).
2y + y + z = 800, or
3y + z = 800, or
z = 800 - 3y (4)
3(2y) + 8y + 5z = 3775, or
14y + 5z = 3775 (5)
Substtute (4) nto (5).
14y + 5(800 - 3y) = 3775
-y = -225
y = 225
From (4), obtain
z = 800 - 3y = 125
From (3), obtain
x = 2y = 450
Answer:
The number of tickets sold was:
450 children,
225 adults,
125 senior citizens.
First you would do $325.49 divided by 10 and you would get $32.55. so you would need $32.55 a week.
