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  • Brainly User
2015-09-03T23:58:15+08:00

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Combined variation (joint and inverse)

W = kXY
          V²

Step 1: Find k;  W = 1200 ; X=4; Y=9
 1200 = k (4)(9)
                   (6)²

1200 = k 36
                 36

k = 1200

Step 2: k = 1200; W = ?  X=3;  Y=12;  V=9

W = kXY
          V²
W = (1200)(3)(12)
                (9)²

W =  43,200
             81

W =  533 and 27/81  or  533 1/3
             
0
thank you very much ..
you're welcome :-) hope you now understand how to solve variation. keep practicing. your periodical exams on variation part will be mostly application.