In digging a hole the construction crew records the location of the bottom of the hole relative to ground level in the first three hours the crew dig at a rate of -2.75 feet each hour how many feet would the crew record after three hours? Write an expression representing this situation

Answer 1

To represent the situation where the construction crew is digging at a rate of -2.75 feet per hour for three hours, you can use the following expression:

\[ \text{Total depth} = \text{rate of digging} \times \text{time} \]

In this case, the rate of digging is -2.75 feet/hour, and the time is 3 hours. Therefore, the expression becomes:

\[ \text{Total depth} = -2.75 , \text{feet/hour} \times 3 , \text{hours} \]

Now, calculate the total depth:

\[ \text{Total depth} = -2.75 \times 3 = -8.25 , \text{feet} \]

After three hours, the crew would record the bottom of the hole at -8.25 feet relative to ground level.