AylinE106058 AylinE106058

25-10-2022
Mathematics

contestada

I solved the attached equation as 7000 but it seems to ask for a “solution set” did I answer properly?

I solved the attached equation as 7000 but it seems to ask for a solution set did I answer properly class=

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JedrickV357547 JedrickV357547

25-10-2022

[tex]\begin{gathered} 0.12y+0.04(y+8000)=1440 \\ 0.12y+0.04y+320=1440 \\ 0.16y=1440-320 \\ 0.16y=1120 \\ y=\frac{1120}{0.16} \\ y=7000 \end{gathered}[/tex]

The solution set does have only one element: {7000}

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