Current location - Training Enrollment Network - Mathematics courses - Mathematics in life
Mathematics in life
A few days ago, the water bill was issued. I took a closer look and found that it took 5.9 yuan. "So much" I cried. Seeing that the unit price of water fee is 1.90 yuan, our family enjoys 58.9÷ 1.9=3 1 (cubic meter) =3 1 (ton). But we only used 28 tons of water last month, 3 1-28=3 tons more than last month.

There are also bills for sewage and garbage disposal fees under the water table. The unit price of the treatment fee is 0.90 yuan, and the sewage volume is 28 cubic meters, so the treatment fee is 28×0.9=25.2 yuan. The garbage disposal fee is 27.0 yuan, and the unit price is 13.5 yuan, but it doesn't say how many tons are used. Therefore, 27 ÷ 13.5 is enough.

A cubic meter is about the size of a TV set. 3 1 m3 is equal to 3 1 TV set. If you keep driving, you can drown the whole building. It can be concluded that I am wasting water resources. Wash your hands dozens of times a day, take a bath, wash your head once, and turn on the tap when brushing your teeth and washing your face. It takes 15 points. It's hard for me to imagine life without water.

"Saving water is everyone's responsibility" is the slogan that the whole world is calling for. Let's protect water resources together.