• aroub
John took half an hour to row 3 km with the current. When he returned, he took 90 min. Find his rowing rate and speed of the current. This is my solving (but wrong >.< ): 3=30r+30t 3=90r-90t => Eq1+1/3(Eq2) 3=30r+30t 1=30r-30t ----------- 4=60r r=4/60 and then you substitute r in any of the equations to find t, but r is supposed to be 4 O.o
Mathematics
• Stacey Warren - Expert brainly.com
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SOLVED
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