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Robert earns $512.75 less than Noel. John earns 3 times Robert's salary. If the total salary earned by them is $47,645.25, how much salary does Robert earn?

 Feb 22, 2020
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Let Noel's salary = N
Robert's salary    = N - 512.75
John's salary       =3[N - 512.75]

 

N + N - 512.75 + 3[N - 512.75] =47645.25, solve for N
N = $9,939.25 - Noel's salary
$9,939.25 - $512.75 = $9,426.50 - Robert's salary
3 x $9,426.50 = $28,279.5 - John's salary
$9,939.25 + $9,426.50 + $28,279.50 = $47,645.25 - Their total salaries.

 Feb 22, 2020

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