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To save energy, the speed of the airport moving walkway was slowed down by 10% and as a result it takes an extra \(9\) seconds for it to complete the “trip”. How long, inseconds, does it take to complete the trip after the slow down?

 Jun 5, 2022
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 Jun 5, 2022
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Let the total time it takes the moving walkway after 10% slowdown==T

 

Then: 0.10T ==9 seconds

 

Therefore T ==9 / 0.10 ==90 seconds to complete the trip after slowdown

 Jun 6, 2022

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