The table shows the charge for water services provided by the utilities board.
Water consumption |
Rate |
60 m3 of water usage and below |
$1.70 per m3 |
Additional water usage above 60 m3 |
$1.80 per m3 |
Raeann's family paid $111 for water usage in the month of July. What is the most amount of water that they could have used in July?
Amount that Raeann's family paid for the first 60 m
3 of water usage
= 60 x 1.70
= $102
Remaining amount that Raeann's family paid for additional water usage
= 111 - 102
= $9
Additional water usage
that Raeann's family paid for
= 9 ÷ 1.80
= 5 m
3Most amount of water that Raeann's family could have used in July
= 60 + 5
= 65 m
3 Answer(s): 65 m
3