derek drives east at 120 km/hr and didong goes west at 130 km/hr . How far apart in kilometer are they after 2 hours?
Answer:
Derek and Didong are 500 km apart after hrs.
Step-by-step explanation:
Step 1: State assumption.
Assuming that Derek and Didong will start at the same reference point.
Step 2: Write the given
- Derek drives east at 120 km per hr.
- Didong drives west at 130 km per hr.
Step 3: Find the distance each of them traveled after 2 hrs.
- distance= (velocity)(time)
- Distance that Derek drove: (120 km per hr)(2 hrs)=240 km
- Distance that Didong drove: (130 km per hr)(2 hrs)= 260 km
Step 4: Since Derek and Didong are driving at opposite directions, then their distance is increasing over time.
In order to find their distance after 2 hrs, we simply need to add the distance that they covered.
- Total distance= Derek’s distance + Didong’s distance
- Total distance= 240 km + 260 km
- Total distance is 500 km.
Therefore, Derek and Didong is 500 km apart after 2 hrs.
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https://brainly.ph/question/970846
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