請幫忙計算列式
Car A and Car B had a race. Car A was going at 64 km/H while car B at 56 km/H Car B started one hour earlier. How Long will it take Car A to overtake Car B?
請幫忙計算列式(最緊要列式)
2008-05-28 8:54 pm
回答 (4)
2008-05-28 9:01 pm
✔ 最佳答案
Car A and Car B had a race. Car A was going at 64 km/H while car B at 56 km/H Car B started one hour earlier. How Long will it take Car A to overtake Car B? distance between Car A & B= 56 * 1
= 56 km
Car A overtake Car B = 56 / (64-56)
= 56/8
= 7 Hours
2008-05-29 1:05 am
Let x be the time,
for car A, the distance covered=64x
for car B, 56+56x
64t=56+ 56x
8x=56
x=7
,',the time is 7hours
for car A, the distance covered=64x
for car B, 56+56x
64t=56+ 56x
8x=56
x=7
,',the time is 7hours
2008-05-28 9:05 pm
let t be the time,
for car A, the distance covered=64t
for car B, 56+56t
64t=56+56t
8t=56
t=7
so the time is 7 hours
for car A, the distance covered=64t
for car B, 56+56t
64t=56+56t
8t=56
t=7
so the time is 7 hours
2008-05-28 8:55 pm
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080528000051KK00891