eryannhenry eryannhenry
  • 16-04-2021
  • Mathematics
contestada

if p is inversely proportional to the square of q, and p is 9 when q is 5, determine p when q is equal to 3

Respuesta :

Jasmineeena
Jasmineeena Jasmineeena
  • 17-04-2021

Answer: tell me if i am wrong

p = 304

Step-by-step explanation:

Given p is inversely proportional to q² then the equation relating them is

p = [tex]\frac{k}{q^{2} }[/tex] ← k is the constant of proportion

To find k use the condition p = 19 when q is 8, then

19 = [tex]\frac{k}{8^{2} }[/tex] =[tex]\frac{k}{64}[/tex]  ( multiply both sides by 64 )

k = 1216

p = [tex]\frac{1216}{q^{2} }[/tex] ← equation of proportion

When q = 2, then

p =  [tex]\frac{1216}{2^{2} }[/tex]=[tex]\frac{1216}{4}[/tex]=304

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