Question

2.

Answer 1

Answer: 5 cents

Step-by-step explanation:

Given

Flow rate of water is $3.5\ gal/min$

At this rate it cots $\ 1.90$ for 10 minutes

Volume that flown in this time

$\Rightarrow V=3.5\times 10\\\Rightarrow V=35\ \text{Gallons}$

So, $\ 1.90$ is charged for 35 gallons of water

Using unitary method, 1 gallon costs

$\Rightarrow 1\ \text{gallon}=\dfrac{1.9}{35}\\\\\Rightarrow 1\ \text{gallon}=\ 0.0542\ \text{or}\ 5.4\ \text{cents}\\\text{Round off to nearest cent}\\\Rightarrow 1\ \text{gallon}=5\ \text{cents}$