Mathematics, 20.08.2019 17:00 buddyshaw76

John is twice as old as mary. the sum of their ages is 21. how old is mary?
let j = john's age and m = mary's age.

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John is twice as old as mary. the sum of their ages is 21. how old is mary?
let j = john's ag...

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John is twice as old as mary. the sum of their ages is 21. how old is mary? let j = john's age and m = mary's age.

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Another question on Mathematics

John is twice as old as mary. the sum of their ages is 21. how old is mary?
let j = john's age and m = mary's age.