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我想問一條maths題.
發問:
題目:In a country, if we take a taxi, the fare is $5 for the first 2 km and $2 for every 1 km in the remaining journey. Mr Wong took a taxi from his home to an airport and the journey was x km in total.(a)The distance between Mr Wong's home and the airport was more than 2 km. Express the required fare in... 顯示更多 題目: In a country, if we take a taxi, the fare is $5 for the first 2 km and $2 for every 1 km in the remaining journey. Mr Wong took a taxi from his home to an airport and the journey was x km in total. (a)The distance between Mr Wong's home and the airport was more than 2 km. Express the required fare in terms of x. (b)If Mr Wong paid a fare of $41, how long was the journey in total? (c)If Mr Wong took a taxi at the airport and travelled 30 km to a train station, how much did he pay? 我要列式同答案. THX=]
最佳解答:
其他解答:
我想問一條maths題.
發問:
題目:In a country, if we take a taxi, the fare is $5 for the first 2 km and $2 for every 1 km in the remaining journey. Mr Wong took a taxi from his home to an airport and the journey was x km in total.(a)The distance between Mr Wong's home and the airport was more than 2 km. Express the required fare in... 顯示更多 題目: In a country, if we take a taxi, the fare is $5 for the first 2 km and $2 for every 1 km in the remaining journey. Mr Wong took a taxi from his home to an airport and the journey was x km in total. (a)The distance between Mr Wong's home and the airport was more than 2 km. Express the required fare in terms of x. (b)If Mr Wong paid a fare of $41, how long was the journey in total? (c)If Mr Wong took a taxi at the airport and travelled 30 km to a train station, how much did he pay? 我要列式同答案. THX=]
最佳解答:
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(a) The required fare =5(2)+(x-2)(2) =10+2x-4 =$(6+2x) (b) 6+2x=41 2x=35 x=17.5 the total journey is 17.5 km (c) The required fare =6+2(30) =$66其他解答:
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