To model the monthly costs of Anita's and Abby's water services, we can write equations based on the information given.
-
Anita's water bill:
- Cost per gallon: $0.30
- Service charge: $25
- Equation: \( y = 0.30x + 25 \)
-
Abby's water bill:
- Cost per gallon: $0.10
- Service charge: $35
- Equation: \( y = 0.10x + 35 \)
So, the equations for the system are:
Anita's water bill: \( y = 0.30x + 25 \)
Abby's water bill: \( y = 0.10x + 35 \)