SOLUTION: Math tutors I don't know how to do this..thank you
Find an equation of variation where y varies jointly as x and z and inversely as the square of w and y=20 when x=-0.5, z=4, a
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-> SOLUTION: Math tutors I don't know how to do this..thank you
Find an equation of variation where y varies jointly as x and z and inversely as the square of w and y=20 when x=-0.5, z=4, a
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Question 141587: Math tutors I don't know how to do this..thank you
Find an equation of variation where y varies jointly as x and z and inversely as the square of w and y=20 when x=-0.5, z=4, and w=5.
You can put this solution on YOUR website! Find an equation of variation where y varies jointly as x and z and inversely as the square of w and y=20 when x=-0.5, z=4, and w=5.
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y kxz/w^2
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Find "k":
20 = k*-0.5*4/5^2
20 = -2k/25
400 = -2k
k = -200
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EQUATION:
y = -200xz/w^2
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Cheers,
Stan H.
You can put this solution on YOUR website! Math tutors I don't know how to do this..thank you
Find an equation of variation where y varies jointly as x and z and inversely as the square of w and y=20 when x=-0.5, z=4, and w=5.
Start with this formula for the equation of variation:
The letter that varies is .
The "jointlys" are and
The only "inversely" is
So plug in:
Plug in the given values y=20 when x=-0.5, z=4, and w=5.
Multiply both sides by 25
Now substitute for in
Edwin
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