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.
Answer:
x=3
Step-by-step explanation:
3x=9
divide each side by 3
9/3=3
1.n represents the number of tickets she bought.
2.27.75n represents the total cost of n tickets
3.Without the handling fee Olga paid 138.75
4.To get 27.75n by itself on one side of the equation you can move 5.5 from the left to right of the equation
<u>Step-by-step explanation</u>
n is the total number of tickets Olga bought.
27.75n represents the total cost of n tickets.It is given in the question that one ticket costs $27.75 and thus n number of tickets will cost $27.75 n.
The handling fee is 5.5
27.75n+5.5=144.25
27.75n=144.25-5.5=138.75
without the handling fee Olga will pay $138.75
5(n+2)=8(n-17)
This one was tricky, just read the wording.
