A three-dimensional space where an electron spends most of its time with no more than 1 other electron, forming a pair
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: Its A
Explanation:Just plug in the variable 7.75 min to grade a quiz, q
12.4 minutes to grade a paper, p
for a total of 465 minutes
and they have 51 tests and quizzes in total
"Has" would make more sense. A tip would be to read the sentence with both words, one word at a time obviously (So Everyone HAS already voted in the election.) and just go with your gut on which one makes more sense, you can do it!
Answer:
<h3>I don't understand your question</h3>
