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if anthony had 3 times as many marbles as he actually has, he would have 1/3 as many marbles as Billy has. what is the ratio of the number of marbles Anthony has to the number of marbles Billy has?

a)1:9
b)1:3
c)1:1
d)3:1
e) 9:1


1:9
Ex: Anthony has 3 marbles and Billy has 27. 3 is 1/9 of 27, and if you triple 3, you get 9, which is 1/3 of 27.

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