What is 10 \cdot\left(\dfrac{1}{2}+\dfrac{1}{5}+\dfrac{1}{10}\right)^{-1} ?
Answer Choices
A. 3
B. 8
C. \dfrac{25}{2}
D. \dfrac{170}{3}
E. 170
What is 10 \cdot\left(\dfrac{1}{2}+\dfrac{1}{5}+\dfrac{1}{10}\right)^{-1} ?
Answer Choices
A. 3
B. 8
C. \dfrac{25}{2}
D. \dfrac{170}{3}
E. 170