Question

a oen tone ice sculpture is melting do that it loses on fifth of its weight per hour. how much of the sculpture will be left after five hours? write the answer in pounds

Answer 1

this can be modeled by the equation
\[2000(0.8)^{t}\] where t is the number of hours. Because, after every hour, 80% of the sculpture remains, then 80% of that 80% the next hour, and so on. So plug in 5 for t, and you get
2000(0.8)^5 --> 2000 x 0.328 = 655.36 pounds