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:
7,7
Step-by-step explanation:
Possibly 7,7 becuase p+q=pq, therefor 2,1+5,6=7,7
Answer:
$21
Step-by-step explanation:
7% = .07
$300 multiplied by .07 = $21
All except 0. The inequality is saying that x must be less than or equal to 3 which all answers except 0 are.
Answer:
52-LCM=40 53-LCM=18 54-LCM=24 55-LCM=56
Step-by-step explanation:
