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OpenStudy (anonymous):
The variable z varies jointly with x and y. 1. Write an equation that relates x,y, and z when x=-3, y=7, and z= 14. 2. Find z when x=5 and y=6.
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OpenStudy (mertsj):
Varies jointly means varies directly with 2 or more variables.
OpenStudy (mertsj):
\[z=kxy\]
OpenStudy (mertsj):
Plug in the given values and solve for k
OpenStudy (anonymous):
Oh, got it! Thanks
OpenStudy (mertsj):
yw
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