Current location - Training Enrollment Network - Mathematics courses - Practical application problems (online, etc. ) One-dimensional quadratic equation of mathematics in grade three.
Practical application problems (online, etc. ) One-dimensional quadratic equation of mathematics in grade three.
Assuming that the price of each refrigerator is (2900-50x) yuan, there are

(2900-2500-50 times) (8+4 times) ≥5000

X 2-6x+9 ≤ 0。

x=3

So the price of each refrigerator is:

2900-50x=2900-50*3=2750 yuan.

Related articles
  • Building block mathematics 5
  • 20 13 Anhui science mathematics volume
  • What songs can be written quickly when writing math?
  • Are there any students from World War II or previous years who took the postgraduate entrance examination?
  • Math problem: how to form a cross with five cubes and cut it twice, and how to become a square of 1?
  • Find the answer to the math (literature) 10 question of Tianjin college entrance examination in 2009
  • Shi Tingting Mathematics
  • Solving two rectangular problems in eighth grade mathematics urgently
  • How to improve math scores one month before the college entrance examination? Only naval battles? (If good. Reward reward points
  • Math problem of senior one in America.

    • copyright 2024 Training Enrollment Network All rights reserved