Question

For the equation E=, h is a proportionality con- stant. When 1-14, E =20. So, if n=7, what is the conesponding value of 6? O 40 O 0.1 O 10 0 0.025 O 0.25

Answer 1

Substitute 14 for n and 20 for E in the equation to determine the value of proportionality constant.

`\begin{gathered} 20=(h)/(14) \\ h=20\cdot14 \\ =280 \end{gathered}`

Substitute 280 for h and 7 for n in the equation to obtain the value of E.

`\begin{gathered} E=(280)/(7) \\ =40 \end{gathered}`

So value of E is 40.