A diver descends at a rate of 8 m/min. Which expression CANNOT be used to find her depth after 5 minutes?
The expression CANNOT be used to find her depth after 5 minutes:
A. 8 * 5 (distance = rate * time)
B. 8 + 5 (distance = initial depth + time)
C. 8 / 5 (distance = rate / time)
D. 8 - 5 (distance = initial depth - time)
To find the depth after 5 minutes, we can use the following expression:
Depth = Rate × Time
The rate at which the diver descends is 8 m/min. Therefore, the depth after 5 minutes can be calculated as:
Depth = 8 m/min × 5 min
The expression that CANNOT be used to find her depth after 5 minutes would be any expression that does not involve the product of the rate and time. For example, if we were given the rate in seconds instead of minutes, an expression like "Depth = 8 m/sec × 5 min" would not be valid since the units for the rate and time do not match.