Alicias average speed riding her bike is 11.5 miles her hour. she takes a round trip of 40 miles. it takes her 1 hour and 20 minutes with the wind and 2 hours and 30 minutes against the wind. write an expression for alicias time with the wind

The speed of the wind is 3.5 miles per hour.

Solution:

Let x be the speed of the wind

The total time of the trip =

From the Question we know the total time = 1 hr 20 minutes +2 hrs 30 minutes = 3 hrs 50 minutes.

We transform the time in hours and solve the equation:

The equation needed to solve the problem is:

Evaluate to find the value of x.

The speed of wind in positive number so the solution is x = 3.5 miles per hours.

it is probably the graph on the bottom right.

answer: the answer is 35%