palomitaanastac palomitaanastac

11-01-2015
Mathematics

contestada

Ashley is 5 times as old as Nadia and is also 12 years older that Nadia.How old is Nadia?

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MWhales MWhales

11-01-2015

3 years old, because 3 times 5 is 15 and 3 plus 12 is 15.

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crisforp crisforp

11-01-2015

a = 5 * n ;
a = 12 + n;
Then, 5n = 12 + n; / -n
4n = 12 ; / ÷4
n = 3 years.

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