Answer:
Step-by-step explanation:
let number of adult tickets=x
and number of student tickets=y
x+y=137 ...(1)
8x+6y=952
divide by 2
4x+3y=476 ...(2)
multiply by 3
3x+3y=411 ....(3)
(2)-(3) gives
x=65
y=137-65=72
number of adult tickets=65
number of student tickets=72
2.
let number of rose flowers =x
and number of carnation flowers=y
x+y=264
y=264-x
3.50 x+2.50y=772
multiply by 2
7x+5y=1544
7 x+5(264-x)=1544
7 x+1320-5 x=1544
2 x=1544-1320
2 x=224
x=112
y=264-112=152
number of rose flowers=112
number of carnation flowers=152
