Amare drops a probe into a lake. The elevation of the probe changes by -1 1/2 feet every second. The probe takes 50 seconds to reach the bottom of the lake. How deep is the lake? Show your work.

The lake is 75 ft deep

Step-by-step explanation:

Here , we want to get the depth of the lake

mathematically, we can have this as the rate at which the elevation of the probe changes multiplied by the time it took the probe to reach the bottom of the lake

That would be;

3/2 * 50 = 75 feet