mme58
29.01.2020 •
Mathematics
While brendan is vacationing with his family at the cabin, they take a motorboat on the river. the motorboat travels
18 miles per hour in still water.
1. let w represent the speed of the river current in miles per hour. write an expression for how fast the
motorboat is able to go downstream (with the current) write another expression for how fast the motorboat is
able to go upstream (against the current).
2. the motorboat travels 49 miles upstream in the same time it takes to travel 77 miles downstream. what is the
speed of the current w? use the elimination method to solve.
Solved
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Ответ:
First option
(b + 3)/2
Step-by-step explanation:
When multiplying two fractions the numbers can be simplified as shown on the photo I have added
please check it out and tell me if you need further explanation.