Percentage increase

Increase number 400 by 3.5%

Correct answer:

x =  414

Step-by-step explanation:

$$\begin{gathered} q=3.5\mathrm{\%}=1+{\displaystyle \frac{3.5}{100}}=1.035 \\ x=400\cdot q=400\cdot 1.035=414 \end{gathered}$$

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