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which is the better buy 7 pounds for $8.47 or 9 pounds for $11.07

Sagot :

First we find the average cost per pound...
(7n)/7 = ($8.47)/7   = $1.21 per pound
(9n)/9 = ($11.07)/9  =  $1.23 per pound

$1.21 is the cheapest price per pound, so 7 pounds for $8.47 is a better buy

Answer = 7 pounds for $8.47 is the best buy
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