Answer:
The equation its p (w) = 55 pounds - 0.5 pounds/week * w
Step-by-step explanation:
Ok, so, poor Rocco must loss some weight. He started his diet at 55 pounds, and is losing 0.5 pounds/week.
Rocco starts at 55 pounds. If we call this starting time "week 0", we can see that his weight in pounds (p) must be 55 pounds.
p = 55 pounds
Now, how much weight Rocco gains (or loses) by week. He loses 0.5 pounds / week. So, we are going to subtract that value from the weight at "week 0".
p (w) = 55 pounds - 0.5 pounds/week * w
So, we got a straight line equation. We can get the values of p for each week, i made an pdf with the values and a graph, both are attached to this answer.
Please, take in consideration that at week 20 Rocco already loosed the 10 pounds he needed, so the diet end at this week. The graph goes a little longer, but
