SOLUTION:
Step 1 :
In this question, we were given that a plane flies 990 miles with the wind in 2.75 hours.
It would take the plane 3.5 hours to fly 1099 miles against the same wind speed.
Find the speed of the plane with no wind and the speed of the wind.
Step 2 :
The system of Linear Equations using the two variables are as follows:
Step 3 :
Solving the two systems of equations, using elimination method:
Put the value of u = 337 miles per hour in equ 1 , we have that:
CONCLUSION:
The speed of the plane with no wind, u = 337 miles per hour
The speed of the wind, v = 23 miles per hour.