(7 plus 8 plus 9) times by 3.4
You asked:
Evaluate the expression: \(\left(7 + 8 + 9\right) \cdot 3.4\)
MathBot Answer:
\[\left(7 + 8 + 9\right) \cdot 3.4 = \frac{408}{5} = 81.6\]
\[\begin{aligned}\left(7 + 8 + 9\right) \cdot 3.4& = \left(7 + 8 + 9\right) \cdot \left(3 + \frac{4}{10}\right)\\& = \left(15 + 9\right) \cdot \left(3 + \frac{4}{10}\right)\\& = 24 \cdot \left(3 + \frac{4}{10}\right)\\& = 24 \cdot \left(3 + \frac{2}{5}\right)\\& = 24 \cdot \frac{17}{5}\\& = \frac{408}{5}\end{aligned}\]