Making Cans with Tinplate
Making cans with tinplate, each sheet of tin can produce 25 can bodies, or 40 can bottoms. One can body combined with two can bottoms makes a complete can. Currently, there are 36 sheets of tinplate. How many sheets should be used to make can bodies, and how many for can bottoms so that the can bodies and can bottoms match exactly? .......... The answer can be found below ..........
Teach everyone how to do a math problem
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Let x be the number of sheets of tin used for the box body and y be the number of sheets of tin used for the box bottom. x + y = 36. 2 * (25x) = 40y. We get x = 16, y = 20. In the second equation, 25x is the total number for the box bodies, and 40y is the total number for the box bottoms. Twice the number of box bodies corresponds to the number of box bottoms.
Given: The mother is 21 years older than the child. Six years later, the mother's age will be 5 times the child's age. Solve: Where is the father now? (It really can be calculated)
I'll also teach you a math problem: 1+1=2. Remember it? This math problem is actually very practical in everyday life.
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