Question

Maria is draining her swimming pool. The depth of the water in the pool changes by −3/4 foot every hour.The depth of the water was 5 feet when she started draining. What is the depth of the water after 5 hours?

Answer 1

Answer: 1 1/4feet

Step-by-step explanation:

From the question, we are informed that the depth of the water in the pool changes by −3/4 foot every hour and that the depth of the water was 5 feet when she started draining.

The depth of the water after 5 hours will be:

= 5 - 3/4(5)

= 5 - 15/4

= 5 - 3 3/4

= 1 1/4 feet