Mathematics, 15.01.2020 12:31 mucciak3634
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?
a. d = 4j and d + 10 = 2j + 20
b. d = 4j and d + 10 = 2(4j + 10) + 20
c. d = 4j and d + 10 = 2(j + 10) + 20
Answers: 2
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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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