Question

Susan and Judy shared the driving on a trip. Of the 810 miles they drove, Susan drove twice as far as Judy. How many miles did Susan drive

Answer 1

Answer:

Given: total of 810 miles

             Judy's miles = x

             Susan's miles = 2x

   Solution:  

Solve for Judy's miles

                            2x + x = 810 miles

                            3x = 810 miles

                            (transpose) x= 810 miles / 3

                            x = 270 (Judy drove 270 miles)

Solve for Susan's miles

                           2x = Susan's miles

                           2(270 miles) = 540 miles

  Answer:  Susan drove for 540 miles

Answer 2

Answer:

Given: total of 810 miles

Judy's miles = x

Susan's miles = 2x

  Answer: Susan drove for 540 miles

Step-by-step explanation:

Solution:  

Solve for Judy's miles

2x + x = 810 miles

3x = 810 miles

 (transpose) x= 810 miles / 3

x = 270 (Judy drove 270 miles)

Solve for Susan's miles

2x = Susan's miles

2(270 miles) = 540 miles