Lucy took 30 minutes to cycle from school to her home at an

baby_欣2022-10-04 11:39:541条回答

Lucy took 30 minutes to cycle from school to her home at an average speed of 12km/h.
If she wanted to reach home 10 minutes early.what must her average speed be?

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较低参差 共回答了12个问题 | 采纳率100%
露西骑车从学校到她家以12km/h的速度平均花30分钟.如果她想提前10分钟到家.她骑车的平均速度是多少呢?
答案 18km/h
0.5x12=6km
6/(1/3)=18km/h
1年前

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Lucy took 30 minutes to cycle from school to her home at an
Lucy took 30 minutes to cycle from school to her home at an average speed of 12km/h.
If she wanted to reach home 10 minutes early.what must her average speed be?给个翻译和答案,
TSRJ66881年前2
songoku_531 共回答了21个问题 | 采纳率85.7%
露西骑车从学校到她家以12km/h的速度平均花30分钟.如果她想提前10分钟到家.她骑车的平均速度是多少呢?
答案 18km/h
0.5x12=6km
6/(1/3)=18km/h