Answer:
Step-by-step explanation:
- Speed in one direction = 40 km/h
- Speed on return = x
- Average speed = 60 km/h
Let the distance be d
<u>Average speed </u>
- 2d/(d/40 + d/x) = 60
- d/40 + d/x = 2d/60
- 1/40 + 1/x = 1/30
- 1/x = 1/30 - 1/40
- 1/x = (4-3)/120
- 1/x = 1/120
- x = 120 km/h
Answer:
n<4+9
n<13
Step-by-step explanation:
Answer:
18
Step-by-step explanation:
The LCD of 6 and 9 is 18.
6: 6, 12, 18
9: 9, 18
Answer:
answer is B
Step-by-step explanation:
36
Answer:
y = 1x - 5
Step-by-step explanation:
y = mx + b
slope = (-37 - -66)/(-32 - -61) = 29/29 = 1
y = 1x + b
Substitute (-61, -66).
-66 = 1(-61) + b
-66 = -61 + b
-5 = b
Equation is y = 1x - 5
