Question

The height of the water in a tank decreases by 3.5 cm each day. When the tank is full, the water is 10 m deep. The water tank needs to be refilled when the water height drops below 4 m. Write a question that could be answered by solving the equation 10-0.035d=4

Answer 1

The tank needs to be refilled after 171.429 days.

How to solve an equation?

An equation can be solved by finding the value of the unknown variable. We can arrange the like terms on the same side.

We can now calculate the value of d using the given equation as shown below:

10 - 0.035d = 4

⇒ - 0.035d = 4 - 10

⇒ - 0.035d = - 6

⇒ d = 6/0.035

⇒ d = 171.429

Thus, we have determined that the tank needs to be refilled after 171.429 days.

Learn more about solving equations here: https://brainly.com/question/10880854

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