John is twice as old as mary. the sum of their ages is 52. how old is mary?
if j = john...
Mathematics, 21.11.2019 03:31 ringo12384
John is twice as old as mary. the sum of their ages is 52. how old is mary?
if j = john's age and m = mary's age, which system of equations could be used to solve the problem?
2j = m and j + m = 52
j = 2m and j + m = 52
j = 2m and jm = 52
Answers: 3
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