SOLUTION: A coffee merchant sells a customer 3lb of Hawaiian Kona at $6.50 per pound. His scale is accurate to within ±0.03lb. By how much could the customer have been overcharged or underch

Algebra ->  Inequalities -> SOLUTION: A coffee merchant sells a customer 3lb of Hawaiian Kona at $6.50 per pound. His scale is accurate to within ±0.03lb. By how much could the customer have been overcharged or underch      Log On


   

Question 936403: A coffee merchant sells a customer 3lb of Hawaiian Kona at $6.50 per pound. His scale is accurate to within ±0.03lb. By how much could the customer have been overcharged or undercharged because of possible inaccuracy in the scale?
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
charge is $6.50 per pound.
scale is accurate to within plus or minus .03 pounds.

the weight could therefore be .97 pounds to 1.03 pounds.

the customer is paying $6.50.

if .97 pounds, then the customer is paying $6.50 / .97 = $6.70 per pound rather than $6.50 pound.

if 1.03 pounds, then the customer is paying $6.50 / 1.03 = $6.31 per pound rather than $6.50 per pound.