Mathematics, 28.07.2019 05:50 elvira18
Dad is 4 times as old as his son jim. in 10 years, dad's age will be 20 years more 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 = 4j and d + 10 = 2j + 20 d = 4j and d + 10 = 2(4j + 10) + 20 d = 4j and d + 10 = 2(j + 10) + 20
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Dad is 4 times as old as his son jim. in 10 years, dad's age will be 20 years more than twice jim's...
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