问题108: On Monday Taye has 2 . Every day, he either gains 3 or doubles the amount of money he had on the previous day.

8. On Monday Taye has $\$ 2$. Every day, he either gains $$ 3$ or doubles the amount of money he had on the previous day. How many different dollar amounts could Taye have on Thursday, 3 days later?
   周一那天, Taye 有 2 美元。每天, 他要么获得 3 美元, 要么拥有的金额变成前一天的两倍。请问三天后, 也就是周四, Taye 拥有的金额可能有多少种不同的结果?
   (A) 3
   (B) 4
   (C) 5
   (D) 6
   (E) 7
9. All of the marbles in Maria's collection are red, green, or blue. Maria has half as many red marbles as green marbles and twice as many blue marbles as green marbles. Which of the following could be the total number of marbles in Maria's collection?
   Maria 收藏有红色、绿色、蓝色三种颜色的大理石, 其中红色大理石的数量是绿色大理石数量的一半, 蓝色大理石数量是绿色大理石数量的两倍。请问 Maria 收藏的大理石总数可能是多少?
   

已解决 · 高中数学
提问于1月19日 · 阅读 114