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. 7h – 5(3h – 8) = –72 which statement is true about pieter’s solution? 1. it cannot be a fraction or decimal because the depth of the well is a whole number. 2.it must be a positive number since it represents a number of hours. 3. it must be a negative number because the depth is below sea level. 4.it cannot be greater than –72 because that is the depth of the well.

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

Step-by-step explanation:

He solved it for h, the number of hours, not for the depth which is given as -72, or 72 feet below sea level.

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

fahrenheit

step-by-step explanation:

fahrenheit is more precise than celsius. the ambient temperature on most of the inhabited world ranges from -20 degrees fahrenheit to 110 degrees fahrenheit—a 130-degree range. on the celsius scale, that range is from -28.8 degrees to 43.3 degrees—a 72.1-degree range. this means that you can get a more exact measurement of the air temperature using fahrenheit because it uses almost twice the scale.