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july00
24.02.2020 •
Mathematics
Alex goes on a river boat tour while on vacation. The maximum speed of the boat in still water is 13 miles per
hour. The boat travels 24 miles downstream in the same amount of time it takes the boat to travel 15 miles
against the current. What is the equation to solve for the rate of the current?
Solved
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Ответ:
The equation to solve is
The rate of the current s is 3 mph
Step-by-step explanation:
Remember that
The speed is equal to divide the distance by the time
so
The time is equal to divide the distance by the speed
Let
s ---> the rate or speed of the current in mph
we know that
The linear equation that represent this situation is
solve for s
Ответ:
so, 2x+3 = 18
or, x = (18-3)/2 = 7.5