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4. Nicky has a part-time job at the market. She recorded the number of hours she worked each week for the last month and how much she was paid after taxes to the table given below. If the paycheck amount varies directly with the hours worked, how much is Nicky paid per hour, after taxes? * Hours Worked Paycheck amount ($) 130.76 149.44 65.38 102.74 16 11

Respuesta :

we use cross-multiplication

take a pair and try to find the pay per hour

[tex]\begin{gathered} 14h\longrightarrow130.76 \\ 1h\longrightarrow x \end{gathered}[/tex][tex]\begin{gathered} x=\frac{1h\times130.76}{14h} \\ x=9.34 \end{gathered}[/tex]

to check we can take other pair

[tex]\begin{gathered} 7h\longrightarrow65.38 \\ 1h\longrightarrow x \end{gathered}[/tex][tex]\begin{gathered} x=\frac{1h\times65.38}{7h} \\ x=9.34 \end{gathered}[/tex]

the paid per hour is $9.34

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