A roadside vendor sold 6 kilograms of potatoes to a customer. The customer handed $50.00 to the vendor, who gave back $8.00 in change. What was the cost of one kilogram of potatoes?

Correct answer:

x =  7 USD/kg

Step-by-step explanation:

m=6 kg c=50.008.00=42 USD  x=c/m=42/6=7 USD/kg

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