Current location - Training Enrollment Network - Mathematics courses - Use 66 yuan to buy 2 kg of meat and 3 kg of fish, and use 102 yuan to buy 4 kg of meat and 3 kg of fish. How much is meat and fish? Mathematical expressions, not algebra.
Use 66 yuan to buy 2 kg of meat and 3 kg of fish, and use 102 yuan to buy 4 kg of meat and 3 kg of fish. How much is meat and fish? Mathematical expressions, not algebra.
The amount of fish is certain, but the amount of money is different, because the weight of meat is different.

102-66=36 yuan-this is 4-2=2 Jin of meat.

36÷2= 18 yuan-this is the money for a catty of meat.

66- 18×2=30 yuan-this is the money for three catties of fish.

30÷3= 10 yuan-this is the money for a catty of fish.

Answer: a catty of meat 18 yuan, and a catty of fish 10 yuan.

I hope I can help you and adopt it.

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