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The faucet of Xiaoxiao's house is broken and often leaks. Xiaoxiao uses a 3-liter bucket to collect water. After 1 hour and 30 minutes, it is full 1. How many liters of water is leaking from the faucet every minute? 2. How many liters of water will be wasted if the faucet is not repaired in time for one month (calculated by 30 days)? 3. If the water charge per cubic meter is 2.8 yuan, how many yuan of water is wasted in one month? How many days can a person drink the wasted water in one month? (calculated by drinking 1400ml per person per day It's 1400ml
one
1 hour 30 minutes = 90 minutes
Leakage per minute: 3 △ 90 = 1 / 30 liter
two
One month waste:
1 / 30 × 60 × 24 × 30 = 1440 L
three
How about 1440 ml per person per day?
1440 △ 1000 × 2.8 = 4.032 yuan
Drinking water for one person: 1440 × 1000 △ 1440 = 1000 days
If a faucet leaks 10ml a minute, if there are about three faucets in each household, according to this ratio, there are about 2.8 million households in Wuhan that waste about a year
How many liters of water? How many cubic meters?
10 ml = 0.01 L
Water is wasted about a year
0.01 × 3 × 2800000 × 60 × 24 × 365 = 44150400000 (L) = 44150400 (M3)
A unit does not pay attention to water saving, and the faucet often leaks. Suppose that the faucet drips 3 drops per second (20 drops is 1 ml), the unit has 180 faucets, and how many tons of water does it leak every day? (1 cubic meter of water weighs about 1 ton)
(2) If 55 tons of water is needed for each steel stew, how many tons of steel can be smelted from the water leaked in a year (360 days)?
3 * 60 * 60 * 24 & # 10135; 20 = 1.296 (T)
RELATED INFORMATIONS
- 1. We should form the habit of saving water since childhood. If a faucet drips 4 drops per second, the average 20 drops is one milliliter It leaks day and night a.18.28kg b.8.64kg c.4.32kg d.17.28kg Why?
- 2. A dripping tap needs to drain 12 kg of water every day. According to this calculation, the tap needs to drain () kg of water every 365 days
- 3. A dripping faucet wastes 60 liters of water a day. If your home uses 6000 liters of water a month, According to this dripping faucet, how many months can you waste 365 days a year?
- 4. We took the bucket for half an hour and received 1.8kg of water. Do you know how much water a dripping faucet wastes per minute?
- 5. An untightened faucet drips 1.8kg water in half an hour. How many kg water does the untightened faucet drip in one minute? (solution to equation)
- 6. If a faucet is not tightened, it will waste about 50 ml of water per minute. (1) how many liters of water is wasted in a day? How much water is wasted in a year?
- 7. How much water does a running faucet waste in an hour
- 8. In the second math problem of junior high school, a pool has one inlet tap and one outlet tap. If the two taps are opened for half an hour at the same time, the empty pool can be filled with water. For example, Guo can open ten taps at the same time A pool has one inlet tap and one outlet tap. If the two taps are opened for half an hour at the same time, the empty pool can be filled with water. For example, if Guo turns off the tap after opening for one tenth of an hour at the same time, the empty pool can also be filled after another quarter of an hour. How many hours can the ball open the inlet tap to fill the empty pool? Well, this chapter is about the real fractional equation!
- 9. How much water can you drip in 10 minutes when the tap is not closed? And how much water will be wasted in 24 hours
- 10. How many tons of water can a domestic water pipe flow in an hour? A faucet will do
- 11. A leaky faucet wastes 1 / 25 tons of water a day. According to this calculation, how many tons of water does a leaky faucet waste in a month (calculated by 30 days)?
- 12. Simple calculation 25 × 99.9
- 13. Factorization x (y + 2) - x-y-1
- 14. Factorization: X (Y-1) + y (1-y) =?
- 15. Simple calculation of 7 / 12 × 3 / 4 + 15 / 48
- 16. 48 * (7 / 12 + 3 / 12) △ 2 / 3
- 17. Simple operation 37.2 × 48 + 372 × 5.1 + 37.2
- 18. 300 × 200-10 π & # 178; =? (calculation retention π)
- 19. Try to explain (a + 3) &# 178; ≠ A & # 178; + 3 & # 178; (a ≠ 0) in a direct way
- 20. The factorization shows that 8 times of 64 minus 9 times of 32 minus 22 times can be divided by 26 If a polynomial is divided by (X-Y) and the result is 4-x & sup2;, then the polynomial can be decomposed into a factor（