-
Anonymous users2024-01-241)2)
3) Compare the size of the previous two formulas, use a greater than sign or less than the sign 1)02)240
Solution: It is cheaper to go to a shopping mall when buying a chair for x. >>>More
It costs y1 yuan to set up in a shopping mall: y1 = 12 * 200 + 50 (x-12) simplification y1 = 1800 + 50x >>>More
In the case that the plan to purchase 12 dining tables remains unchanged, let the number of dining chairs for each table be x, so that the cost A & B, then: >>>More
[Analysis].
The key to solving the problem is to understand the meaning of the problem, find out the appropriate equivalence relationship according to the conditions given by the problem, list the inequalities, and find the required value; >>>More
Let the chair be x
Solve x for a few. >>>More