Giselle D.

asked • 11/03/19

z varies directly as x and inversely as y. If z=159 when x=8 and y=6, find z if x=5 and y=8.

2 Answers By Expert Tutors

By:

Margaret F. answered • 11/03/19

Math/Test Prep Tutor

Giselle D.

So, k=(159)(6) /8 ?
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11/03/19

Giselle D.

which is 119.25?
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11/03/19

Giselle D.

So we do 119.25= 8z/5?
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11/03/19

Giselle D.

Which means z=74.53?
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11/03/19

Margaret F.

tutor
Yes! Great job!
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11/04/19

Sidney D. answered • 11/03/19

17 years Tutoring Experience in College Mathematics, Harp, and Violin

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