The problem is that every five tennis balls are packed with one tube, and after the B tube is full, there are still three left. We need to find out how many tennis balls are full and how many tennis balls are there in total. Suppose there are always x tennis balls and y tennis balls are full.
According to the topic, we can establish the following equation: every five tennis balls are put in a test tube, so it takes 5×y tennis balls to fill y test tubes. There are 3 tennis balls left after the Y-tube is filled, so there are 5×y+3 tennis balls in total. Using the mathematical equation, we can express it as: 5× y+3 = X.
Now we have to solve this equation and find the values of x and y, and the result is: there are 8 tennis balls in total. Because every five tennis balls are packed in a test tube, the number of test tubes filled is unknown, but there are still three tennis balls not packed in the test tube.
Advantages of learning mathematics
People who are good at math are relatively smart and savvy, and they can show their advantages in dealing with people. The faster you think, the more ways and ideas you have. Mathematics is the foundation of other disciplines, and it is easier for people who learn mathematics well to get into other disciplines. Learning software, computer, finance and other engineering majors is even more handy.
It is used everywhere in life. Nowadays, the society is an information society, and mathematical knowledge is used in financial management and computers. Mathematics can cultivate people's integrity and honesty. Mathematics pays the most attention to convincing people by reasoning, and only believes in the results of logical reasoning. Mathematics can cultivate people's tenacity and courage. Mathematics can cultivate people's overall consciousness. Mathematics can cultivate people's good character.