Respuesta :

Answer

• Sloan: $40.8

Explanation

From the given hours, we have to homogenize the data, for example, all in decimals. Thus:

• Sam:

[tex]7\cdot\frac{1}{2}=\frac{7\cdot2+1}{2}=\frac{14+1}{2}=\frac{15}{2}=7.50[/tex]

• Janet: 6.75

,

• Sloan:

[tex]4\cdot\frac{1}{4}=\frac{16+1}{4}=\frac{17}{4}=4.25[/tex]

• Harper

[tex]6\cdot\frac{1}{2}=\frac{12+1}{2}=\frac{13}{2}=6.50[/tex]

Then, they earned $300 tips and they spent 20%. Therefore, we have to calculate the 80% that is left after the 20% spent:

[tex]300\cdot0.80=240[/tex]

Finally, we have to calculate the proportion of each hour. The total hours are:

[tex]7.50+6.75+4.25+6.50=25[/tex]

Then, we have to multiply this quantity times the proportion of Sloan:

[tex]\frac{4.25}{25}=0.17\cdot240=40.8[/tex]

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