A man drives from his home at 30 miles per hour to the shopping center which is 30 miles from his home.
某（男）人以30英里/小時(shí)的速度從家里開往距離他家30英里的購物中心.
On the return trip he encounters heavy traffic and averages 12 miles per hour.
在回程的路上,他遇到了嚴(yán)重的交通阻塞,所以平均速度是12英里/小時(shí)
How much time does the man take in driving to and from the shopping center?
這個(gè)（男）人花了多少時(shí)間在去購物中心和從那返回家的路上?
計(jì)算：
去購物中心--- 30 miles ÷ 30 miles / hour = 1 hour
返程 --- 30 miles ÷ 12 miles / hour = 2.5 hours
(這一步題目沒要求需要) 共計(jì) --- 1 hour + 2.5 hours = 3.5 hours
A man drives from his home at 30 miles per hour to the shopping center which is 30 miles from his home.On the return tri
A man drives from his home at 30 miles per hour to the shopping center which is 30 miles from his home.On the return trip he encounters heavy traffic and averages 12 miles per hour.How much time does the man take in driving to and from the shopping center?(翻譯,順便幫我計(jì)埋拉!thanks咯!）
英語人氣：154 ℃時(shí)間：2020-04-04 02:10:34
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