SOLUTION: Find a mathematical model that represents the statement. (Determine the constant of proportionality.) z varies jointly as x and y. (z = 48 when x = 3 and y = 4.)

Algebra ->  Expressions-with-variables -> SOLUTION: Find a mathematical model that represents the statement. (Determine the constant of proportionality.) z varies jointly as x and y. (z = 48 when x = 3 and y = 4.)      Log On


   

Question 1168420: Find a mathematical model that represents the statement. (Determine the constant of proportionality.)
z varies jointly as x and y. (z = 48 when x = 3 and y = 4.)
Answer by josgarithmetic(39623) About Me  (Show Source):
You can put this solution on YOUR website!
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z varies jointly as x and y.
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z=kxy


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(z = 48 when x = 3 and y = 4.)
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k=z%2F%28xy%29

k=48%2F%283%2A4%29
k=4

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highlight%28z=4xy%29