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## Pieter wrote and solved an equation that models the number of hours it takes to dig a well to a level of 72 feet below sea level

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Pieter wrote and solved an equation that models the number of hours it takes to dig a well to a level of 72 feet below sea level

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Mathematics
6 months
2021-07-17T07:31:42+00:00
2021-07-17T07:31:42+00:00 1 Answers
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## Answers ( )

Answer:

It must be a positive number since it represents a number of hours.

Step-by-step explanation:

Given Pieter’s equation :

7h – 5(3h – 8) = –72

Opening up the bracket

7h – 15h + 40 = – 72

7h – 15h = – 72 – 40

-8h = – 112

Divide both sides by -8

-8h / -8 = – 112 / – 8

h = 14

Since, h represents the number of hours, and the value of h equals 14 (h cannot be negative), hence, option 2 is correct.