Question

A rancher is filling a trough for her horses. The trough already contains 25 gallons of water, and the rancher is adding 11 gallons per minute. How long will it take for the trough to have 80 gallons of water?

Write and solve an equation to find the answer. How many minutes.

Answer 1

Answer: 5 minutes

Step-by-step explanation: The total change in the amount of water in the trough is the difference between the final amount and the initial amount, which is 80 gallons - 25 gallons = 55 gallons.

Since the rancher is adding 11 gallons of water per minute, the time it will take for the trough to have 80 gallons of water is the total change in the amount of water divided by the rate at which the water is being added, which is 55 gallons / 11 gallons/minute = 5 minutes.

Therefore, it will take the rancher 5 minutes to fill the trough with 80 gallons of water.