Victoria sells two types of flour: cake flour and pastry flour. The price of cake flour is $2.50 per kilogram and the price of pastry flour is $4.30 per kilogram.
She decided to mix these two types of flour together and sell it as a new type of flour.
Determine the unit price, in dollars per kilogram, of a mix of 4 kilograms of cake flour and 5 kilograms of pastry flour. plsss
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Price of cake flour = $2.50/kg
Price of pastry flour = $4.30/kg
Adding price of 4kg cake flour and 5kg pastry flour = 4 (2.5)+5 (4.3)
= 10+21.5 =$31.50
Price of new foulr = 31.50÷9 = $3.5/kg
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