Answer:

Step-by-step explanation:
Given
See attachment for ski trails
Required
Total length of
ski trails
From the attached figure, there are 3 skis with length 
So:
The total length is:

Express fraction as improper fraction




Adding the 2 equations will eliminate x because -4x + 4x = 0
so we get
-14y = 28
y = -2
plug this into the second euqtion:-
4x + 14(-2) = -28
4x - 28 = -28
x = 0
answer is x = 0 , y = -2
Answer:
Step-by-step explanation:
Picture
Answer:
2/3
Step-by-step explanation:
4 subs 6 people
4/6= 0.66 repeated
so each person got 2/3 sub
Answer:
7000
Step-by-step explanation:
If it is 5 or more, then round up. If it is 4 or less, then round down.