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John's employer increased his annual salary of $55,000 by $5,700. What percent was his raise rounded to one decimal place?10.4%0.10%0.1%10.36%

Respuesta :

From the given information, we can establish the following rule of three:

[tex]\begin{gathered} \text{ \$55,000 ----- 100\%} \\ \text{ \$5700 ------ x} \end{gathered}[/tex]

By cross-multiplying these quantities, we have

[tex]x\times\text{ \$55000=\$5700}\times100\text{ \%}[/tex]

Then, the unknwon percentage x is given as

[tex]x=\frac{\text{\$5700}\times100\text{ \%}}{\text{ \$55000}}=10.3636\text{ \%}[/tex]

Therefore, by rounding this result to the nearest tenth, the answer is: 10.4 %

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