The first year of high school math takes a sharp turn, and the high school math brain teaser is supe

Solution: (1) y=5x+3x=8x

2) Assuming that it does not exceed 4 tons, the total water fee paid does not exceed 4* yuan, which is inconsistent with the known.

Let's say 5x is more than 4 tons, and 3x is not more than 4 tons. Total water bill: 3x*x=26 17, and 3x>4 does not match.

Let's assume that they are all larger than 4 tons. Then: 4 * 3x=, 5x=A tons of water consumption in the month, water fee 4 * yuan.

B The monthly water consumption is tons, and the water fee is 4* yuan.

1) y=8x* (x is less than or equal to.)

y= >

2) A used tons, B used tons.

Problem solving process: (, then A's water consumption is: *5= tons.

The water consumption of B is: tons.

Are you sure it's high school math? How do I look like elementary school...

Show sympathy for you, if there are any fun brain teasers, you can share them together. Let everyone help you!

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