Aleagemini
Aleagemini Aleagemini
  • 18-08-2016
  • Mathematics
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What is the value of x in the equation 1/5x-2/3y =30 when y = 15?

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keepcool
keepcool keepcool
  • 18-08-2016
1/5x - 2/3y=30
y=15
⇒1/5x-2×15/3=30
    1/5x-10       =30
    1/5x             =40
∴              x     =200
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