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If z is inversely proportional to r, and z= 32 when r=1.5, find r when z=8. PLEASE HELP ME SOS
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If z is inversely proportional to r, and z= 32 when r=1.5, find r when z=8.

PLEASE HELP ME SOS

User David Hanak
by
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1 Answer

3 votes
Inversely proportional: z = k/r
k = 32 * 1.5 = 48
Plug that into equation
8 = 48/r
Multiply both sides by r
8r = 48
Divide by 8
r = 6
User Kahonmlg
by
4.2k points
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