wilkinscurtis8p6yugt wilkinscurtis8p6yugt
  • 25-04-2018
  • Mathematics
contestada

A college student earned $246, $288, $234, and $ 276 over a four week period. How much he earn during the fifth week to have average earnings of $255 for the five weeks?

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nehelsyed11p7c6ru nehelsyed11p7c6ru
  • 25-04-2018
the equation here is

[tex] \frac{246 + 288 + 234 + 276 + x}{5} = 255[/tex]
If we multiply both sides by 5 we get
[tex]246 + 288 + 234 + 276 + x = 1275[/tex]
Now if we add our like terms, we get
[tex]1044 + x = 1275[/tex]
Now lets subtract 1044 from both sides to get a value for x
[tex]x = 231[/tex]
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