Alex's bike ride to work usually takes 22 minutes at 9kph. one morning he found a new route that was 5 minutes faster. if he decides to use this new route again and wants to reach home by an additional 2 minutes earlier, how fast should he cycle?


Php242,655.93inversephp300.50don't knowphp506.25bbdirectphp150,000.00don't knowcc
Margin fo error=z(sub a/2) * √(p*(1-p))/n


hope it helps you
He needs to cycle at 30km/h.

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