Let the cost of a chicken be x and the cost of a duck, y, then
50x + 30y = 550 . . . (1)
44x + 36y = 532 . . . (2)
(1) x 6 ⇒ 300x + 180y = 3,300 . . . (3)
(2) x 5 ⇒ 220x + 180y = 2,660 . . . (4)
(3) - (4) ⇒ 80x = 640
⇒ x = 640 / 80 = 8
From (1): 50(8) + 30y = 550
⇒ 30y = 550 - 400 = 150
⇒ y = 150 / 30 = 5
Therefore, the price of a chicken is $8 and the price of a duck is $5.
Answer:14
Step-by-step explanation:
Answer:
C. 12
Step-by-step explanation:
Answer:
the value after solving = 16
Step-by-step explanation:
=》8 + (8/1^4) =》8 + 8 ( since 1^4 = 1 )
=》16
Y=(-11)^x
answer
when x is 1 y=-66
answer=-66
