At a supermarket the price of a carton of blueberries varies directly with its weight. A carton that weighs 0.5 lb cost $4.25. W
hat is the price in dollars of a carton of blueberries that weighs 0.75 lb?
2 answers:
Given that the price of a carton of blueberries varies directly with its weight.
That is,
, where is the price , weight of the carton and a proportionality constant.
Consider 2 prices and weights,
The price in dollars of a carton of blueberries that weighs 0.75 lb is .
It is $6.375.
0.5lb:$4.25
0.75lb:$6.375
This is because 0.75lb is 1.5 times greater than 0.5, so you do 4.25*1.5, which is $6.375
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