alannaamarriee
17.05.2021 •
Mathematics
A speed boat travels from A to B for the first part of a journey and then B to C to complete a journey.
For the entire journey, A to C, the boat travels at an average speed of 21 kmph.
During the journey, from B to C, the boat only travels at a speed of 13 kmph
Calculate the percentage decrease in average speed between the first and second part of the journey, given that the distance off each part is equal.
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Ответ:
hope this helps
brainliest appreciated
good luck! have a nice day!