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15 September, 08:21

John is 5 years older than Mary. In 10 years, twice John's age decreased by Mary's age is 35, and John's age will be

twice Mary's current age. Find their ages now

If xis Mary's age now and y is John's age now, which system of equations could not be used to solve the problem?

y = x+5 and y + 10 = 2x

y=x+5 and 2 (y + 10) - (x + 10) = 35

y = x + 5 and 2 (y + 10) = x

+5
Answers (1)
  1. 15 September, 09:42
    0
    56

    Step-by-step explanation:

    5 to the 3 power is 15 so add and subtract 10
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