Re: [計量] 一題數學請教
※ 引述《AbercrombieF (2010)》之銘言：
: How many seconds will it take for a car that is traveling at a constant
: rate of 45 miles per hour to travel a distance of 22 yards?
: (1 mile = 1760yards)
: a) 8 b)9 c)10 d)11 e)12
: ans: c
: 我算出來的答案都沒有在上面
: 可以麻煩各位跟我說怎麼算嗎?
: 麻煩大家了 謝謝
45[miles/hour]= 45*1760[yards]/3600[seconds]
= 22 [yards/second]
22[yards] /22[yards/second]=1 [second]
--
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.109.134.47
推
05/11 11:38, , 1F
05/11 11:38, 1F
推
05/12 23:41, , 2F
05/12 23:41, 2F
討論串 (同標題文章)