2011 AMC10B 真题
2011-10-05 AMC 2011 AMC10B AMC PDF 426.56KB
Problem 1
Problem 2
Josanna's test scores to date are and . Her goal is to raise her test average at least points with her next test. What is the minimum test score she would need to accomplish this goal?
Josanna 目前的考试分数是 90 ， 80 ， 70 ， 60 和 85 。她的目标是靠下次考试将她的考试平均分 提高至少 3 分，那么地下次至少需要考多少分才能完成这个目标？
Problem 3
At a store, when a length is reported as inches that means the length is at least inches and at most inches. Suppose the dimensions of a rectangular tile are reported as inches by inches. In square inches, what is the minimum area for the rectangle?
在某家商店，长度标为 英寸表示实际长度至少为 x 英寸，至多为 英寸。假设 一块长方形瓷砖的尺寸标为 ｘ 英寸。则在这个长方形瓷砖的最小面积是多少平方英寸？ 2 3
(A) 3.75 (B) 4.5 (C) 5 (D) 6 (E) 8.75
2011 AMC 10B
