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olga_2 [115]
2 years ago
14

The value of y varies directly with x, and y = 18 when x = 12. Find y when x = 60.

Mathematics
1 answer:
Rom4ik [11]2 years ago
4 0

\qquad \qquad \huge \pink {\sf{☁Answer☁}} \\  \\

→ Here,

  • y varies directly as x means that y = kx
  • here value of (k) is not known

by substituting the values of x and y, y = 18 when x = 12

\rm{y = kx} \\  \\  \rm{18 = 12k} \\  \\ \rm{k =  \cancel \frac{18}{12} } \\  \\  \rm{ k = 1.5}

Now, substituting value of k nd x in y = kx

  • x = 132
  • k = 1.5
  • in y = kx

\rm{y = (1.5 \times 60 )} \\  \\ \rm{y = 90}

\sf{\:мѕнαcкεя\: ♪...}

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