A motorboat travels 210 miles in 7 hours going upstream. It travels 406 miles going downstream in the same amount of time. What is the rate of the boat in still water and what is the rate of the current?

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

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answe: it will take 4.5 hours for naomi and clair to paint an equal number of square feet

hope i

-lavira : )