英奥题,请解答并翻译。急~~
1、Ifyoureadatwo-dightnumberbackwards.yougetsa4.5timesgreaternumber.Thisnumberis_____....
1、If you read a two-dight number backwards.you gets a 4.5 times greater number.This number is_____.
2、In a bicycle race,Leana averages about 25 miles per hour.The race takes palce between two cities 175 miles apart.How much would Leona's speed have to increase in order for her to decrease her riding time by one hour?Leona's speed have to increase _____miles per hour.
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2、In a bicycle race,Leana averages about 25 miles per hour.The race takes palce between two cities 175 miles apart.How much would Leona's speed have to increase in order for her to decrease her riding time by one hour?Leona's speed have to increase _____miles per hour.
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2个回答
2013-03-25
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1.如果将某两位数的个位和十位颠倒顺序,则它变成原来的4.5倍,求原来的两位数
2.一场自行车竞赛中,L的平均速度是25英里一小时。比赛起点和终点是相距175英里的两个城市。(也就是说路程是175英里)
L的速度要提高多少,她才能提前1小时抵达终点? L的速度需要提升———英里/小时。
2.一场自行车竞赛中,L的平均速度是25英里一小时。比赛起点和终点是相距175英里的两个城市。(也就是说路程是175英里)
L的速度要提高多少,她才能提前1小时抵达终点? L的速度需要提升———英里/小时。
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