The car moved for 4 hours at a speed of a km / h and for 3 hours at a speed of d km / h.
| April 5, 2021 | education
The car moved for 4 hours at a speed of a km / h and for 3 hours at a speed of d km / h. What distance did the car go during these 7 hours?
1. First, the car moved for 4 hours at a speed of a km / h, therefore, the distance traveled by it will be 4 hours * a km / h = 4a km.
2. Then the car moved for 3 hours at a speed of d km / h, therefore, the distance traveled by it will be 3 hours * d km / h = 3d km.
3. Let’s calculate how many kilometers the car has covered, adding the tracks calculated in points 1 and 2: 4а + 3d km.
Answer: in 7 hours the car covered 4a + 3d km.
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