Question

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?

Answer 1

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.