Question

The table below shows Sarah's earnings on the job. Time (hours) Earnings (dollars) 11 $190.30 23 $397.90 27 $467.10 What is the constant of proportionality between earnings and time in hours?

Answer 1

Given:

Saran's earnings on a job is tabulated.

Let y be the earnings and x be the time.

$\begin{gathered} y=kx \\ k=\frac{y}{x} \\ k=\frac{190.30}{11} \\ k=17.3 \end{gathered}$

Constant proportionality is 17.3

$y=17.3x$