A scuba diver is swimming 15 feet below the water’s surface. The diver swims up slowly at 0.5 feet per second for 4 seconds; and
then stops to look at an eel. Finally, the diver swims up for 3 more seconds at 0.4 feet per second. What is the diver’s new depth? Enter your answer in the box.
For this case what we can do is the following rule of three: 152 -----> 2 x --------> 20 We clear the value of x: x = (20/2) * (152) x = 1520 tons Answer: in order to locate 20 ounces of diamonds the company needs: x = 1520 tons of rock
