His weekly earning is an illustration of linear equation
- When he sells $1400, his total earning is: $270
- When he sells $x, his total earning is: 200 + 0.05x
The parameter is represented as:
[tex]Base\ Salary = \$200[/tex]
His earnings from a sales of $1400 is calculated as:
[tex]Earnings =5\% \times \$1400[/tex]
[tex]Earnings = \$70[/tex]
So, his total earning is;
[tex]Total =Base\ Salary + Earnings[/tex]
[tex]Total =\$200 + \$70[/tex]
[tex]Total =\$270[/tex]
When he sells $x, his total earning is:
[tex]Total = Base\ Salary + 5\% \times x[/tex]
Substitute 200 for Base Salary
[tex]Total = 200 + 5\% \times x[/tex]
Express 5% as decimal
[tex]Total = 200 + 0.05 \times x[/tex]
[tex]Total = 200 + 0.05x[/tex]
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