anonymous
  • anonymous
Find an equation of variation in which y varies jointly as x and z. y = 7 when x = 7 and z = 1 A. y=x/z B. y=xz
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
@Skaematik what about this?
anonymous
  • anonymous
When we say z is jointly proportional to a set of variables, it means that z is directly proportional to each variable taken one at a time It means they are DIRECTLY PROPORTIONAL. So the answer is
anonymous
  • anonymous
y=xz?

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anonymous
  • anonymous
anonymous
  • anonymous
yes
anonymous
  • anonymous
thanks! can you help me with one more please? @Skaematik
anonymous
  • anonymous
sure

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