sheridan83 sheridan83

15-08-2017
Mathematics

contestada

Y varies jointly as X and z. Y=75 when X equals 5 and Z equals 5. Find Y when x=7 and z=3

Respuesta :

kphung76127 kphung76127

15-08-2017

First find the k value
75= k(5)(5)
75=k*25
k=3

Plug the k value in with the other set of values
y=3*7*3
y=21*3
y=63

Final answer: 63

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