he table below shows Zoey's earnings on the job.
Time left bracket hours right bracketTime (hours) Earnings left bracket dollars right bracketEarnings (dollars)
33 dollar sign, 86, point, 1, 0$86.10
1111 dollar sign, 315, point, 7, 0$315.70
2424 dollar sign, 688, point, 8, 0$688.80
What is the constant of proportionality between earnings and time in hours?
To find the constant of proportionality, we can divide the earnings by the time in hours for each pair of values:
For the first pair: $86.10 / 3 = $28.70
For the second pair: $315.70 / 11 = $28.70
For the third pair: $688.80 / 24 = $28.70
Since the quotient is the same for all pairs, the constant of proportionality between earnings and time in hours is $28.70.