We are trying to find the average speed of the plane, which is mph, or  . Using proportions, we can find the average speed of the plane in mph:
. Using proportions, we can find the average speed of the plane in mph:

- Use the information from the problem to create a proportion. Remember that we are looking for mph, so we will call that  . .

- Multiply the entire equation by  

- Divide both sides of the equation by  to clear both sides of the mile unit to clear both sides of the mile unit
The average speed of the plane is 300 mph.
 
        
             
        
        
        
Hi do u want me to give you the answer or give u the formula?
        
                    
             
        
        
        
Well you can't actually find a number, but you can make an equation.
lets call the bag of candy x, and the number of students in the teachers class S.
she gives every student in her class 4 pieces, so to find that amount, we have to multiply the number of students in her class by 4, the pieces of candy. 4S
afterwards she has 48 pieces, which is the endpoint, x is the starting point because that's the amount of candy the teacher started with.
so your equation is x-4S=48, but the thing is, the question is looking for the amount of students she gave candy to, so we have to isolate S, or in easier words; put S on one side, and the numbers on the other.
so the equation is S=1/4x-12
        
             
        
        
        
It’s 2-1=1
1-1= 0
0-1=-1
We -1