Sea water

Seawater contains about 4.3% salt. How many dm3 of distilled water we must pour into 5 dm3 of sea water to get water with 1.8% salt?

Result

V =  6.94 dm3

Solution:

4.3% 5=1.8% (5+V) 4.3/100 5=1.8/100 (5+V)  4.3 5=1.8 (5+V)  1.8V=12.5  V=125186.944444 =6.94 dm34.3 \% \cdot \ 5 = 1.8 \% \cdot \ (5+V) \ \\ 4.3/100 \cdot \ 5 = 1.8/100 \cdot \ (5+V) \ \\ \ \\ 4.3 \cdot \ 5 = 1.8 \cdot \ (5+V) \ \\ \ \\ 1.8V = 12.5 \ \\ \ \\ V = \dfrac{ 125 }{ 18 } \doteq 6.944444 \ \\ = 6.94 \ dm^3



Our examples were largely sent or created by pupils and students themselves. Therefore, we would be pleased if you could send us any errors you found, spelling mistakes, or rephasing the example. Thank you!





Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments:
1st comment
Be the first to comment!
avatar




Tips to related online calculators
Need help calculate sum, simplify or multiply fractions? Try our fraction calculator.
Our percentage calculator will help you quickly calculate various typical tasks with percentages.
Check out our ratio calculator.
Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?
Tip: Our volume units converter will help you with the conversion of volume units.
Tip: Our Density units converter will help you with the conversion of density units.

Next similar math problems:

  1. Pipe
    trubka_ocel Steel pipe has a length 2.5 meters. About how many decimetres is 1/3 less than 4/8 of this steel pipe?
  2. Vehicle tank
    fuel_pump2 A vehicle tank was 3/5 full of petrol. When 21 liters of fuel was added it was 5/6 full. How many liters of petrol can the tank hold?
  3. Mushrooms
    mushrooms-01 For five days, we have collected 410 mushrooms. Interestingly every day we have collected 10 mushrooms more than the preceding day. How many mushrooms we have collected during 4th day?
  4. Roses
    zahon-s-ruzemi On the large rosary was a third white, half red, yellow quarter and six pink. How many roses was in the rosary?
  5. Sales stores
    map_2 The first sales store passed the 1/3 and the second 2/5 of the total amount of goods.In third store passed the 2/3 rest of the goods. The remaining 40 kg of goods put into fourth store. How many kilograms of goods pass to a third store?
  6. Persons
    ball1_6 Persons surveyed:100 with result: Volleyball=15% Baseball=9% Sepak Takraw=8% Pingpong=8% Basketball=60% Find the average how many like Basketball and Volleyball. Please show your solution.
  7. Test points
    test_2 If you earned 80% of the possible 40 points, how many points did you miss to get 100%?
  8. Percentage reduction
    sales_percentages Reducing the unknown number by 19% get number 700.7 Determine unknown number.
  9. Eq-frac
    fractions14 Solve the following equation with fractions: h + 1/3 =5/3
  10. Fractions
    zlomky_13 Three-quarters of an unknown number are 4/5. What is 5/6 of this unknown number?
  11. TVs
    tv Production of television sets increased from 3,500 units to 4,200 units. Calculate the percentage of production increase.
  12. Fuel consumption
    1car Citroen car has an average gasoline consumption of 5.3 liters per 100 kilometers. What is the car range for a full tank of volume 68 liters?
  13. Unknown number
    nums Identify unknown number which 1/5 is 40 greater than one tenth of that number.
  14. Simple equation 6
    eq1_9 Solve equation with one variable: X/2+X/3+X/4=X+4
  15. Eqn
    fractal_16 Solve equation with fractions: 2x/3-50=40+x/4
  16. Goods
    money To the market is introducing a new product, the first week is sold at a reduced price. 8 products is sell at an entry price same as 5 products at the normal price. How much % is reduced price less than the current price for this product?
  17. On a farm
    sheep-500_3 On a farm, there are 90 rabbits, 700 sheep, 300 cattle and 500 pigs. What percentage of the total number of animals are rabbits?