Exactly 80 liters of 20% are needed.
Let quantity of 20% alcohol solution be added : x liters
Here is the work:
> x*20% + 40 * 50% = (x+40) * 30%
> x*0.2 + 40*0.5 = (x+40)*0.3 ..(converting percentages into decimal)
> 0.2x + 20 = 0.3x + 12
> 20-12 = 0.3x - 0.2x (Rearranging similar terms)
> 8 = 0.1 x
Hence x = 8/0.1
Ans 80 Litres
Answer:
the header of the income statement.
income statement
business name
the dates of the accounting period that the income statement will cover.
Answer: Okay so. As the earth revolves around the sun, it stays tilting in the same way (yes it moves a little but not drastically for you to worry about) As it moves around the sun, the parts that were closer to the sun/were more exposed are shifting as the earth revolves around. This causes the areas that were currently in the summer months to cool down into the fall and winter months. That also means that the areas that were experiencing winter are now going into the spring and summer months.
Example: as China goes into the fall and winter months, America is going into spring and summer.
