Solve the following word problem. A fish is swimming at -10.8 meters or 10.8 meters below sea level. Every 2 minutes it descends another 1.5 meters. How long will it take the fish to reach a depth of -37.8 meters

1 answer

To find how long it will take the fish to reach a depth of -37.8 meters, we need to find the number of times it descends 1.5 meters and add that to the initial depth of -10.8 meters.

First, we find the difference between the initial depth and the target depth: -37.8 m - (-10.8 m) = -37.8 m + 10.8 m = -27 m.

Since the fish descends 1.5 meters every 2 minutes, we divide the difference by 1.5: -27 m / 1.5 m = -18.

Therefore, the fish will take 18 * 2 = <<18*2=36>>36 minutes to reach a depth of -37.8 meters.