mamma17
When x = 2 and y = 3, z = 42. Write the function that models each of the following relationships.
1. z varies inversely with x and directly with y.
z=y/x
z=28y/x
z=(28y)x
z=3y/2x
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audrielynn
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formula would be z = ky/x
substitute:
x = 2
y = 3
z = 42
formula becomes:
42 = k*3/2
solve for k to get:
k = 2*42/3 = 28
mamma17
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so it is z=(28y)x?
audrielynn
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yes
mamma17
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ty
audrielynn
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anytime
mamma17
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I got more cause I am not that good at math lol
audrielynn
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im not either
mamma17
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well u helped me on this one lol