Sophia has three stickers for every two stickers that Ethan has. If Sophia gives Ethan 16 of her stickers, then Ethan will have twice as many stickers as Sophia has How many stickers do Sophia and Ethan have all together?
Let s represent the number of stickers Sophia has. Then the number Ethan has is (2/3)s. The transfer of 16 stickers can be described by the equation ...
(s -16)/(2/3s +16) = 1/2 . . . . . sophia/ethan = 1/2 after the transfer
2s -32 = 2/3s +16 . . . . . . . . .cross multiply
4/3s = 48 . . . . . . . . . . . . . . . add 32-2/3s
s = (48)(3/4) = 36 . . . . . . . . .multiply by 3/4
Together, the total number of stickers held is s +(2/3)s = (5/3)s.
5/3s = (5/3)(36) = 60 . . . . . total of Sophia's and Ethan's stickers
Together, Sophia and Ethan have 60 stickers.
it isn't d, because the interquartile range is from 27-57. and the interquartile range is basically half the data, it's pretty obvious.
it isn't b, because like i said earlier, the interquartile range is from 27-57. 57-27 is 30. the real range has to be longer
not a either. although it looks like it, 3/4 of the data is not greater than 27. but if c is wrong than this should be correct
the correct answer is c, because 13 is the point in which the plot starts
where is the figure