the ratio of of barbie's to rob's is 3:2 respectively. If bob is 12 years of age how old is barbie?

I need it to figurato the question because its really hard.
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3 barbie : 2 rob

to make rob 12, we have to multiply by 6.

to balance the ratio, we have to multiply by 6 on both sides

18 barbie: 12 rob

Barbie would be 18.
by Level 13 User (103k points)

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