10分数:--/1 When 1.783 is rounded to the nearest whole number,the result is how much greater than when 1.783 is rounded to the nearest tenth?
the nearest whole number:2
nearest tenth:1.8
so the answer is 0.2
11分数:--/1 Samantha is packing for a trip．Of the towels in the closet,6 are brown．She will randomly pick one of the towels to pack．If the probability is 2/5 that the towel she will pick is brown,how many towels are in the closet?
6/X=2/5
so X=15
12Five different points A,B,C,D,and E lie on a line in that order．The length of AD is 4.5 and the length of BE is 3.5．If the length of CD is 2,what is one possible value for the length of BC?
2