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stira [4]
3 years ago
6

The car travels 60 km from city A to city B passed at speed x. On the way back, the speed was increased by 12 km / h. What is th

e initial speed if the car has traveled for a total of 10 hours?​
Mathematics
1 answer:
ch4aika [34]3 years ago
5 0

Answer:

54 km/h

Step-by-step explanation:

use s=½(u+v)t

600=½(x+x+12)10

600=½(2x+12)10

600=(2x+12)5

600=10x+60

540=10x

x=54 km/h

I think this is how to do it, I'm so sorry if I do it wrong!

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