Greenrune113
Greenrune113
26-03-2018
Mathematics
contestada
Find y when x = 7 and z = 6.
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sqdancefan
sqdancefan
30-03-2018
Varies jointly means that y is related to the product of x and z:
.. y = k*x*z
.. 64 = k*8*4
.. k = 64/32 = 2
Then for your new numbers,
.. y = 2*7*6
.. y = 84
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