An ice sculpture is melting at a constant rate. Its weight changes -1 4/5 pounds every hour. What is the total change in weight of sculpture after 3 1/2 hours?
To find the total change in weight of the sculpture after 3 1/2 hours, we can first calculate the change in weight after 3 hours using the given rate of -1 4/5 pounds every hour.
Change in weight after 3 hours = -1 4/5 pounds/hour * 3 hours
Change in weight after 3 hours = -5 pounds
Next, we can calculate the change in weight after the additional 1/2 hour.
Change in weight after 1/2 hour = -1 4/5 pounds/hour * 1/2 hour
Change in weight after 1/2 hour = -2/5 pounds
Total change in weight of the sculpture after 3 1/2 hours = Change after 3 hours + Change after 1/2 hour
Total change in weight of the sculpture after 3 1/2 hours = -5 pounds + (-2/5 pounds)
Total change in weight of the sculpture after 3 1/2 hours = -5 2/5 pounds
Total change in weight of the sculpture after 3 1/2 hours = -5 2/5 pounds
Total change in weight of the sculpture after 3 1/2 hours = -5 4/5 pounds