IDNStudy.com, ang perpektong platform para magtanong at makakuha ng maaasahang mga sagot. Sumali sa aming interactive na platform ng tanong at sagot para sa mabilis at eksaktong tugon mula sa mga propesyonal sa iba't ibang larangan.

( Combined Variation )

W varies directly us X and Y and in inversely as V² and W= 1200 when X=4, Y=9 and V=6. Find W when X= 3 , Y=12 and V=9.



need help guys please ....


Sagot :

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