All categories

3 years ago

16. How many liters of a 60% alcohol solution must be added to 60 liters of a 30% alcohol

Mathematics

2 answers:

Nezavi [6.7K]3 years ago

8 0

Step-by-step explanation:

Step 1: Question statement and Inferences

Let x liters of the 60% solution be added.

So, amount of Alcohol in this solution = 60% of x = 0.6x L

Now, let us consider the 40% solution.

The total volume of this solution is 50 L

So, amount of Alcohol in this solution = 40% of 50

Step 2: Finding required values

When x L of 60% solution are mixed with 50 L of the 40% solution, the total volume of the resultant solution will be (50+x) L

By the Law of Conservation of Mass,

Amount of alcohol in the input solutions = Amount of alcohol in the final solution

=> Amount of alcohol in the final solution = 20 + 0.6x

So, concentration of Alcohol in the final solution

Step 3: Calculating the final answer

It is given that the concentration of alcohol in the final solution is 50%

enyata [817]3 years ago

8 0

Agreed with guy above thanks

You might be interested in

Please help 75 points

geniusboy [140]

Answer:

what i the question i will help i promise.

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A mural inspired by a photograph measures 108 inches by 108 inches the scale factor is 12 what are the dimensions of the photogr

Free_Kalibri [48]

The answer would be 18 since you multiply 108 by 2 and divide by 12.

4 0

3 years ago

X+4z-5-3x when x=2 z=3x

kati45 [8]

Answer:

Step-by-step explanation:

Since we know x = 2 and z = 3x, let's find z by substituting the value for x into z:

z = 3(2) = 6

Now that we have the values of both x and z, we can substitute them into the expression and simplify:

x + 4z - 5 - 3x

= 2 + 4(6) - 5 - 3(2)

= 2 + 24 - 5 - 6

= 15

4 0

3 years ago

Wanda wears purple for the whole

krok68 [10]

It should be Maroon I believe

6 0

3 years ago

A manufactured lot of buggy whips has 20 items, of which 5 are defective. A random sample of 5 items is chosen to be inspected.

Finger [1]

Answer:

$P(X=1)$

And using the probability mass function we got:

$P(X=1) = (5C1) (0.25)^1 (1-0.25)^{5-1}= 0.396$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

For this cae that one buggy whip would be defective is $p = \frac{5}{20}=0.25$