Answer:
Step-by-step explanation:
1. The formula for distance=speed X time
18 X 2 X3600=129600km/s
X - the unit
3x; 4x; 5x - the lengths of the sides
3x + 4x + 5x = 30
12x = 30 |:12
x = 2.5
3x = 3 · 2.5 = 7.5 cm
4x = 4 · 2.5 = 10 cm
5x = 5 · 2.5 = 12.5 cm
Answer:
x = 66 degrees
y = 114 degrees
Step-by-step explanation: