SAT数学题A school ordered $600 worth of ligthbulbs.Some of the

来源：学生作业帮编辑：神马作文网作业帮分类：英语作业时间：2024/11/06 10:55:32

SAT数学题
A school ordered $600 worth of ligthbulbs.Some of the lightbulbs cost 1$ each and the others cost 2$ each.If twice as many 1$ bulbs as 2$ bulbs were ordered,how many lightbulbs were ordered altogether?
尤其是不能理解 If twice as many 1$ bulbs as 2$ bulbs were ordered是什么意思
清说清楚点,这种比较级的用法

twice as many A as B是A是B的两倍的意思.
这道题的大概意思就是：
一学校要买总共价值600美元的两类灯泡,分别1美元/个和2美元/个,如果1美元灯泡的数量是2美元灯泡的两倍,总共要买多少个灯泡?
如此一来这道题就好解了,总共要买的灯泡数量=600×1.5/2=450个.

英语翻译A school ordered $600 worth of ligthbulbs.Some of the li 英语翻译Emperor Qin Shihuang ordered the books of various school US President Barack Obama has ordered a strengthening of the 问道sat数学题The median of a list of 99 consecutive integers is 6 一道SAT数学题in a set of eleven different numbers,which of the fo 一道sat语法题错：The chair of the school board announced a plan to Find the number of ordered pairs of real numbers(a,b) such t SAT语法题求救!As ( a proponent ) of school budget cuts,the distri SAT数学题：If m is a positive integer,which of the following cou sat数学题 The 3rd term of a geometric sequence is -3 求一道SAT数学题One-fifth of the cars in a parking lot are blue and worth the trouble of unrolling?