SOLUTION: Linear Interpolation and Animation At the present time, a football player weighs 315 lb. There are 90 days until the player needs to report to spring training at a weight of 27

Algebra ->  Probability-and-statistics -> SOLUTION: Linear Interpolation and Animation At the present time, a football player weighs 315 lb. There are 90 days until the player needs to report to spring training at a weight of 27      Log On


   

Question 1133166: Linear Interpolation and Animation
At the present time, a football player weighs 315 lb. There are 90 days until the player needs to report to spring training at a weight of 270 lb. The player wants to lose weight at a constant rate. That is, the player wants to lose the same amount of weight each day of the 90 days. What weight, to the nearest tenth of a pound, should the player attain in 35 days?

Found 2 solutions by Boreal, josgarithmetic:
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
He needs to lose 45 pounds in 90 days or 0.5 pound a day.
In 35 days, he should lose 17.5 pounds
His weight at that time will be 315-17.5=297.5 pounds

Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
TIME     WEIGHT
 0         315
35         y
90         270

%28270-315%29%2F%2890-0%29=%28y-315%29%2F%2835-0%29
-
-45%2F90=%28y-315%29%2F35
1%2F2=%28315-y%29%2F35
35%2F2=315-y
y=315-35%2F2
highlight_green%28y=297%261%2F2%29