Question 815022: If Mark is 17, and Jimmy is twice Mark's age, then how old is Jimmy when Mark is 20 Found 2 solutions by ewatrrr, TimothyLamb:Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! m = 17
j = 34
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j - m = 17
j = 17 + m
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when mark is 20:
j = 17 + 20
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j = 37
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