Wayne, winston, and wilfred walked for an hour. winston and wilfred walked the same number of miles. winston walked 2 miles less than 3/2 the miles wayne walked. wilfred walked 3/2 miles more than 1/3
the miles wayne walked.

Wayne walked 3 miles, both Winston and Wilfred walked 2.5 miles

Step-by-step explanation:

Create equations out of the given information...

Equation 1:  "Winston and Wilfred walked the same number of miles", becomes

   Winston = Wilfred     (the walked and equal amount of miles)

Equation 2: "Winston walked 2 miles less than 3/2 the miles Wayne walked" becomes

   Winston = (3/2)Wayne - 2      (2 less than 3/2 of Wayne's effort)

Equation 3:  "Wilfred walked 3/2 miles more than 1/3  the miles Wayne walked" becomes

   Wilfred = (1/3)Wayne + 3/2    (3/2 more than 1/3 of Wayne's effort)

Since Winston and Wilfred walked the same number of miles, equations 2 and 3 are equal.  Set them equal to each other and solve for how many miles Wayne walked...Treat 'Wayne' as a variable

(3/2)Wayne - 2 = (1/3)Wayne + 3/2

    (3/2)Wayne - (1/3)Wayne = 2 + 3/2     (get variables on one side of the

                                                                  equation, and constants on the  

                                                                   other side)

           (7/6)Wayne = 7/2     (combine fractions on both sides of the

                                              equation)

           (6/7)(7/6)Wayne = (7/2)(6/7)      (multiply both sides by the reciprocal

                                                              of 7/6 to get rid of the fraction on the

                                                               left side)

        Wayne = 42/14                           (Simplify the right side)

        Wayne = 3                              (reduce the fraction)

So Wayne walked 3 miles.   Now plug '3' in for 'Wayne' in equations 2 and 3 to solve the rest...

Equation 2:     Winston = (3/2)(3) - 2      (Wayne becomes '3')                

                            Winston = 9/2 - 2        

                                  Winston = 9/2 - 4/2

                                      Winston = 5/2 or 2.5 miles

Since Winston = Wilfred (equation 1) we know that Wilfred = 2.5 miles

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )