Let x represent the speed of of boat.
We have been given that the river current is 3 miles per hour.
The speed of boat upstream will be
.
The speed of boat downstream would be
.

We have been given that you travel 2 miles downstream to a marina for supplies, and then you travel 3 miles upstream to a dock.
We can represent this information in an equation as:

Since the speed of the boat is 18 miles per hour, so we will substitute
in above equation and solve for time.







Since time is in hours, so let us convert our given time in minutes.
1 hour = 60 minutes.


Rounding to nearest tenth of minute.

Therefore, it will take approximately 17.7 minutes for the boat to take the trip.
Management information system requires tables, Tables are used only if a person is trying to analyse data and understand its business by summarizing.It is the 1st step of data analysis collecting data. Scatter plot is used when there is a question of association of two or three variable.
Step-by-step explanation:
- Table is the matrix to stack up the data in there respective columns.
- It is the most important setup to analysis.
- It's better used collecting data for any projects or business.
- Tables are even used for Bio statistics and Analytics.
- Databases uses tables for one query table to another query table.
- Scatter plot is dotted plot which analyse two variables.
- Example if a project is eating chocolates in gram in x axis.
- Gaining weight in y axis two variables are used to predict and outcome.
- If a person eats this amount of chocolate it will gain this wait.
- Association rules, contingency statistics and rest.
nani mo nani mo Step-by-step explanation: