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
A chef fills 50ml container with 43.5 g of cooking oil. what is the density of the oil​
tino4ka555 [31]

Answer:

.87

Explanation:

(Density is mass divided by Volume)

D

=

M

V

D

=

43.5g

50ml

=

.87

5 0
3 years ago
A microbiologist tested 4 substances to find out if they would kill certain types of bacteria. The substances were applied to a
tatuchka [14]

Answer:

D.was Abel to kill all 3 types of bacteria

5 0
3 years ago
Which one of these would have the strongest gravitational pull?
Rzqust [24]

Answer:

a large dance star

Explanation:

because it is bigger and heavier

6 0
3 years ago
Read 2 more answers
Present three incidences, as examples, where sport personalities right were violated
stellarik [79]

The incidences are:

Kevin Prince Boaten, a football player from Ghana, was constantly noticed because of his black race.

<h3>How does racism influence participation in sport?</h3>

Others are:

  • Jackie Robinson, experienced being criticized for his black color but he was said to be the first African-American player.
  • Anthony Mundaine was a player in Australia who opt for boxing instead of being in the Rugby League as a result of racial discrimination.

Racism is known to be a major to participation in sports. Note that as a result of people experiencing discrimination, there may be a reduction in the people's participation  in it.

Learn more about personalities  from

brainly.com/question/3920215

#SPJ1

7 0
2 years ago
Hey lol *simping noises* anyways. im in Rain but without the \ so SpEaK to me haha
Brrunno [24]
Uhmmm ma’am/sir i am not sure what’s going on exactly
3 0
3 years ago
Read 2 more answers
Other questions:
  • Using the given equation find the missing coordinates of the points and then find the slope of the line for each equation
    10·1 answer
  • in a local fitness club 32% of the members lifted weights, 41% preferred aerobics and 6%preferred both.if a member is chosen at
    14·1 answer
  • Is memorizing the American Pageant AP US History textbook offered in APUSH classes essential in scoring well on the exam?
    7·1 answer
  • Decide whether the sentence is gramatically correct or incorrect as written. Va a llover hoy. Correctincorrect.
    15·1 answer
  • identify one way in which the spread of buddhism in the period before 1450 c.e. illustrates a continuity in patterns of cultural
    8·1 answer
  • The practice test for the SAT is the ?
    12·1 answer
  • Jenna is helping her family decide which water filtration technology they should install in their house. which of these provides
    6·1 answer
  • By what percent will a fraction change if its numerator is decreased by 60
    7·1 answer
  • In the nation of Hamsterville most goods, services, and resources are allocated in markets. However, some goods are provided by
    12·1 answer
  • What was the legacy Louis XIV left for his successor, Louis XV?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!