- UID
- 608978
- 在线时间
- 小时
- 注册时间
- 2011-2-24
- 最后登录
- 1970-1-1
- 主题
- 帖子
- 性别
- 保密
|
Q234.In a certain game, a large container is filled with red, yellow, green, and blue beads worth, respectively, 7,5,3,and 2 points each. A number of beads are then removed from the container. If the product of the point values of the removed beads is 147,000, how many red beads were removed？
Q243. A straight pipe 1yard in length was marked off in fourths and also in thirds. If the pipe was then cut into separate pieces at each of these markings, which of the following gives all the different lengths of the pieces, in fractions of a yard?
Q.248 Right triangle PQR is to be constructed in the xy-plane so that the right angle is at P and PR is parallel to the x-axis. The x- and y-coordinates of P,Q,R are to be integers that satisfy the inequalities -4≤ x≤ 5 and 6≤ y≤ 16. How many different triangles with these properties could be constructed? |
|
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2011-10-16 19:39:41
收藏
收藏
楼主