jonathanpuncher01
jonathanpuncher01 jonathanpuncher01
  • 23-02-2021
  • Mathematics
contestada

If y varies directly as x and x=6 when y=0.5, find y when x=10

Respuesta :

jimrgrant1 jimrgrant1
  • 23-02-2021

Answer:

y = [tex]\frac{5}{6}[/tex]

Step-by-step explanation:

Given y varies directly as x, then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition x = 6 when y = 0.5 , then

0.5 = 6k ( divide both sides by 6 )

[tex]\frac{0.5}{6}[/tex] = k , that is k = [tex]\frac{1}{12}[/tex]

y = [tex]\frac{1}{12}[/tex] x ← equation of variation

When x = 10, then

y = [tex]\frac{1}{12}[/tex] × 10 = [tex]\frac{10}{12}[/tex] = [tex]\frac{5}{6}[/tex]

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