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The first aircraft has 100 more seats than the second aircraft. The third aircraft has 27 fewer seats than the second aircraft. If their total number of seats is 373​, find the number of seats for each aircraft.

 

Work:

 

x = 100 + y

y = z - 27

 

x = 100 + z - 27

x = 73 + z

 

x = 100 + y = 73 + z

 

373 = 3x - 100 - 73

3x = 200

x=200/3 (which is wrong?)

 Sep 6, 2020
 #1
avatar+12483 
+2

aircraft 1: x + 100

aircraft 2: x

aircraft 3: x - 27

              3x + 73 = 373    |-73

                      3x = 300    | :3

                        x = 100

                        x + 100 = 200

                        x - 27 = 73

 

laugh

 Sep 6, 2020
edited by Omi67  Sep 6, 2020

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