S.1 exercise

👨🏻‍🏫 學術台數學

Cherry

2014-03-27 3:29 am

Jane runs 1.2 km in 5 minutes. What is her speed in km/h?
thx

回答 (5)

螞蟻雄兵

2014-03-27 3:55 am

✔ 最佳答案

Jane runs 1.2 km in 5 minutes. What is herspeed in km/h?
Sol
1.2km/5min
=1.2km/(5min)*60min/h
=(1.2/5*60)km/h
=14.4km/h

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ho Pui

2014-03-30 10:45 pm

1.2(km)/5(mins)*60(mins)
=0.24*60
=14.4

Her speed is14.4km/h.

參考: myself

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健揚

2014-03-29 6:43 am

1.2km x 5min
=1.2km x (60/5)min
=1.2km x 12
=14.1km/h

2014-03-28 22:44:02 補充：
sor!=14.4km/h

參考: me

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2014-03-27 5:40 am

0.24km/h

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用戶41122

2014-03-27 4:38 am

Her speed

=1.2(60/5)

=14.2 km/h

2014-03-26 20:39:59 補充：
Her speed

=[1.2(60/5)] km/h

=14.2 km/h

參考: me, me

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