1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nataly_w [17]
3 years ago
11

How many liters of 60% alcohol solution should be added to 40 liters of a 20% alcohol solution to make a 50% solution?

SAT
1 answer:
IgorLugansk [536]3 years ago
7 0

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

You might be interested in
What do i need to pass the test
Brums [2.3K]

no lower than a 70% to pass a test you cannot have anything lower than a C

3 0
3 years ago
What happened as a result of the Boxer Rebellion? Foreign powers were driven out of China. The US became the dominant country in
timama [110]

Answer: d

Explanation:

8 0
3 years ago
Guys please help me solve this equation <br><img src="https://tex.z-dn.net/?f=h%20%3D%204%20%2B%2020t%20-%20%20%7B5%7D%5E%7B2%7D
Usimov [2.4K]

the answer is option A have a good day

4 0
3 years ago
What can you say about the series an in each of the following cases?
Likurg_2 [28]

The exercise is related to the Ratio Test for Convergence. The rules for this kind of test are given below.

<h3>What are the rules for Ratio Test for Convergence?</h3>

The rules are:

  • If the limit is less than 1 when conducting the ratio test, your series is definitely convergent.
  • The test is inconclusive if the limit is equal to 1.
  • The series is divergent if the limit is greater than 1.

Using this knowledge, we are able to state that

  • A is not conclusive.
  • C's convergence is absolute.
  • There is divergence with D and E.
  • B and F appear to be employing the nth-term test. The nth-term involves determining the sequence's limit as it approaches infinity.

The nth-term test determines whether a series is divergent if the limit is bigger than 0, thus, both B and F are divergent series.

Please see the attached for the full question and the link below for more about Ratio Test for Convergence:

brainly.com/question/16618162

Download txt
7 0
2 years ago
A business needs production workers who have strong math skills. They will
coldgirl [10]
I think the answer is D
5 0
3 years ago
Read 2 more answers
Other questions:
  • Discuss your reaction to the following statement, companies should not provide training to employees because it is the responsib
    15·1 answer
  • +27 points Positive slope/negative slope intercepts????
    11·1 answer
  • "The Seven Habits in Real Life": I supervise a staff of about twenty-six housekeepers for the local hospital. We hire a lot of c
    8·1 answer
  • Which of the following is a common Pitfall in the new product development process?​
    14·1 answer
  • The table shows a student report card.
    7·2 answers
  • Maria plans to rent a boat. The boat rental costs $58 per hour, and she will also have to pay for a water safety course that cos
    14·1 answer
  • Once alcohol has passed into the large intestine it is.
    15·2 answers
  • What do animal tissue and plat tissue share
    13·2 answers
  • In order to advocate for others mental health, you must do all of the following except:
    8·1 answer
  • In contrast to a Level III trauma center, a Level I trauma center must
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!