Answer:
x=16.67,y=328.335
Step-by-step explanation:
given 0.7x+y=340 ...........(1)
-0.5x+y=320............(2)
from equation (1) -(2),
1.2x=20
x=[tex]\frac{20}{1.2}[/tex]
x=16.67
put x=16.67 in equation (2)
[tex]-05\times{16.67}[/tex]+y=320
-8.335+y=320
y=320+8.335=328.335
x=16.67,y=328.335 answer
