<h3>The average speed of the entire trip of hina in km/h is 51.42 km/h</h3>
Given ,
- Distance travelled in first 2 hrs = 120 km
- Distance travelled in next 4 hrs = 180 km
We need to find
Firstly finding speed
• Speed in first 2 hrs = 120/2 = 60km/h
• Speed in next 4 hrs = 180/4 = 45 km/h
As we know that ,
- Average speed = 2V₁V₂/V₁ + V₂
Substituting known values we have ,
⇒ Average speed = 2 ( 60 ) ( 45 ) / 60 + 45
⇒ Average speed = 2(60)(45)/105
⇒ Average speed = 5400/105
⇒ Average speed = 51.42 km/h
Answer:
es 60
Step-by-step explanation:
por que al multiplicar 6 por 10 da 60
Answer:
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Answer:
(-2,2)
Step-by-step explanation:
To solve the system, set the equations equal and solve for x.
x + 4 = -2x - 2
3x + 4 = -2
3x = -6
x = -2
Substitute x = -2 into one of the equations.
y = -2 + 4
y = 2
The solution is (-2,2).