karinaramirez17 karinaramirez17

02-03-2017
Mathematics

contestada

If c+d=40 and 10 ≤ c ≤ 30, all of the following are possible values of d EXCEPT,

A. 7
B. 14
C. 21
D. 28

Respuesta :

02-03-2017

The only one that wouldn't work is A

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