Diegoj31 Diegoj31

02-11-2016
Mathematics

contestada

Which number is NOT a common factor OF 15, 45, AND 90?
A) 3
B) 5
C) 10
D) 15

Respuesta :

syrah1331 syrah1331

02-11-2016

The answer is is b) 10

Answer Link

02-11-2016

none, but 7 is not a common factor of 15,45,and 90

think about it.

3 x 5=15 <<== that already eliminates it

5 x 3= 15 <<== that also eliminates it

10 x 9= 90 <<== eliminated

15 x 1= 15 <<== so all of them are eliminated as an answer

Answer Link

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