Xavier’s salary in 2015= $44, 200
The year which Xavier’s salary first became greater than $47500= year 2019
Calculation of annual salary
His first salary in year 2010= $40100
The amount increase per year= 2/100×40100
= 2× 410=$820
The number of years with increased salary =
2015-2010= 5years.
The amount increase over 5 years= 5× $82 0
= $4100
Therefore his salary in 2015= $40100 + $4100
= $44200
To calculate the year Xavier’s salary would first be greater than $47500
$47500- $40100 = $7,400
Which means, if $4100 = 5 years from 2010
$7,400 = x years from 2010
Cross multiply,
X years= $7,400 × 5/$4100
= $37000/ $4100
= 9 years from 2010
Therefore, at 2019 Xavier’s salary would be greater than $47500
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