X=56+4y
6x-6y=678
x-y=113
x=113+y
113+y= 56+4y
57=3y
y=19
x=132
Answer:
(a) 1km
(b)80 fence panels
Step-by-step explanation:
(a) perimeter = 300+300= 600
200+200= + 400
=1000m
1km = 1000m
(b).
1panel = 2.5 m 1× 200÷2.5 = 80
=200m
Answer: the answer is rational because there is a finite(limited) number of numbers when written as a decimal .
