Mathematics, 17.05.2021 06:00 nard28
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Dad is 3 times as old as his son, Jim. In 20 years, Dad's age will be 2 years less than twice Jim's age. How old is Jim?
If D = dad's age now and J = Jim's age now, which of the following systems could be used to solve the problem?
D = 3J and D + 20 = 3J - 2
D = 3J and D + 20 = 2(3J + 20) - 2
D = 3J and D + 20 = 2(J + 20) - 2
D = 3J and D + 20 = 3J + 20 - 2
Answers: 1
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