Question

Suppose water costs $5.00 per 1,000 gallons for the first 10,000 gallons. For every 10,000 additional gallons the price increases $0.15 more per gallon. What would it cost to use 10,000 gallons of water? What would it cost to use20,000 gallons?

Answer 1

Answer:

i) $50 ii) $101.5

Explanation:

1,000 gallons --> $5

1 gallons --> 5/1000

i)  10,000 gallons --> 10 * 5 = $50

ii) 20,000 gallons --> $50 + $50 = $100

took 10 more gallons so, $0.15 * 10 = $1.5

$100 + $1.5 = $101.5