Respuesta :
Answer:
610 tickets for $8, and 240 tickets for $12.
Step-by-step explanation:
x + y = 850
8x + 12y = 7760
x = 850 - y
8(850-y) + 12y = 7760
6800 - 8y + 12y = 7760
4y = 960
y= 240
x + 240 = 850
x= 610
Answer:
240 = no. of $12 tickets
610 = no. of $8 tickets
Step-by-step explanation:
Let x = no. of $12 tickets
y = no. of $8 tickets
12x = income from selling x $12 tickets
8y = income from selling y $8 tickets
If they are to make a profit of 4000, then they need to have a total income from sales of $7760
So, x + y = 850 and 12x + 8y = 7760
y = 850 - x 12x + 8(850 - x) = 7760
12x + 6800 - 8x = 7760
4x + 6800 = 7760
4x = 960
x = 240 = no. of $12 tickets
y = 850 - 240
= 610 = no. of $8 tickets