Andresssophie5357 Andresssophie5357
  • 14-02-2022
  • Mathematics
contestada

If y varies directly as x and y=15 when x=3 find y when x=12

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ineedhelpfbrodi2
ineedhelpfbrodi2 ineedhelpfbrodi2
  • 14-02-2022
y=60 when x=12

y=kx
15=k3
divide by 3
15/3=k
5=k
y=5x
let x = 12
y=5*12
y=60
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