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A commodity can buy 240 grams for 9 yuan, so how much is 500 grams of this commodity? Seek the answer of detailed mathematical explanation!
The first step is to calculate the price per gram of this commodity. The formula is 9÷240=0.0375 (yuan).
The second step is to calculate the quantity of 500 grams. The formula is: 500*0.0375= 18.75 (yuan).
This method is listed in two steps.
If the formula is listed, it is: 9÷240*500= 18.75 (yuan).