Answer:
x=-5, y=-5. (-5, -5).
Step-by-step explanation:
-x-5y=30
10x+5y=-75
------------------
9x=-45
x=-45/9
x=-5
-(-5)-5y=30
5-5y=30
5y=5-30
5y=-25
y=-25/5
y=-5
36/27=1.3
7x1.3=9.1
The actual length is 9.1meters
A)
= 3 2/4
= 3 1/2
b)
= 7 10/15 + 2 3/15
= 9 13/15
