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Which is the better buy? Show your work and explain your reasoning.

3 1/3lb. of turkey for $10.50
2 1/2lb. of turkey for $6.25

Respuesta :

3 1/3 Ib = 10/3 lb 

10 1/2 dollars = 21/2 dollars 

A: Cost of one lb of turkey = (21/2) / (10/3) = 3.15 dollars 

2 1/2 lb = 5/2 lb 

6 1/4 dollars = 25/4 dollars 

B: Cost of one lb of turkey = (25/4) / (5/2) = 2.5 dollars 

Therefore choice B is cheaper