There are 32 bottles of 100kg oil. How many large and small oil bottles are there?
Suppose there are x large oil bottles, then there are 32-x small oil bottles. According to the meaning of the question, we can get the following equation: 4x + (32-x) △ 2 = 100, & nbsp; & nbsp; & nbsp; 4x + 16-0.5x = 100, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 3.5x = 84, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp
Premise: 10 points for one correct answer and 6 points for one wrong answer
No. 2 raced to answer 8 questions and scored 64 points. How many questions did he answer correctly?
No. 1 raced to answer 10 questions, and finally scored 36 points. How many questions did he miss?
No. 3 raced to answer 16 questions, and finally scored 16 points. How many questions did he answer correctly?
No. 1 raced to answer 10 questions, and finally scored 36 points. How many questions did he miss? (10 × 10-36) / (10 + 6) = 4? He missed 4 questions. No. 2 raced to answer 8 questions, and finally scored 64 points. How many questions did he answer correctly? (64 + 6 × 8) / (10 + 6) = 7? He answered 7 questions correctly. No. 3 raced to answer 16 questions, and finally scored 16 points
Elementary school grade six volume one mathematics, how to calculate the mathematics wide angle
20 × 2 = 40, 44-40 = 4, 4 △ (4-2) = 2 rabbits, 20-2 = 18 chickens