You need a 55% alcohol solution. On hand, you have a 50 mL of a 25% alcohol mixture. You also have 60% alcohol mixture. How much of the 60% mixture will you need to add to obtain the desired solution?

Answers

Answer 1

Answer:

  300 mL

Step-by-step explanation:

There is a simple diagrammatic way to solve mixture problems, illustrated in the attachment. In the left column are the available solution percentages. In the center is the percentage of the desired mix. In the column to the right of that are the diagonal differences between the desired value and the constituent values. Those differences represent the proportions of the constituents on the same horizontal line.

__

Here, that means 30 parts of 60% solution are needed for 5 parts of 25% solution. Since we have 50 mL of 25% solution, we can multiply these ratio values by 10 mL to find the quantities needed. That has been done here in the right-most column.

300 mL of 60% solution are needed to obtain the desired mixture.

__

Additional comment

If you want to write an equation, you can let x represent the quantity of high-concentration solution needed. Then the amount of alcohol in the mix is ...

  0.60x +0.25(50) = 0.55(x +50)

  0.05x = 0.30(50) . . . . . . . subtract 0.55x+0.25(50)

  x = 300 . . . . . . . . . . . . mL of 60% solution needed

You Need A 55% Alcohol Solution. On Hand, You Have A 50 ML Of A 25% Alcohol Mixture. You Also Have 60%

Related Questions

K'Drien has a recipe that needs 3/4 tablespoon of butter for every 2
cups of milk. If K'Drien increases the recipe such that he uses 6
cups of milk, how many
tablespoons of butter will he need?

Answers

Answer:

6/4. Simplified, is 1 2/4

Step-by-step explanation:

According to these three facts, which statements are true?

Circle W has center (−3, 0) and radius 8.
Circle V is a translation of circle W, 2 units down.
Circle V is a dilation of circle W with a scale factor of 2.


Select each correct answer.

The radius of circle V is 16.

The center of circle V is (−5, 0).

Circle V and circle W have the same center.

Circle V and circle W are similar.

Answers

a.

Circle W centre is (-3,0) - (0,-2)* = (-3,-2)

*note that the centre of the circle W is going down by 2 units this only affects the y axis hence the substraction

A dilation of a factor of 2 does not change the centre of the circle rather the radius ( the size of the circle decreases and hence the radius)

So now the radius becomes 8 UNITS/2 = 4UNITS

From the statements given,neither is correct

Answer asap and only if yk 100% its correct

Answers

the answer is 3 and thats cause if you were to multiply 12x75 you get 900, and if 1 gallon of paint covers 400 square feet then you will need 3 gallons to get to 900. so there for the answer is 3

What is 20 2/4+12 3/4?

Answers

Answer:

33 1/4 or 33.25

Step-by-step explanation:

The guy above is correct

Stephanie
invests $6,688 in a savings
account with a fixed annual interest rate of
2% compounded 6 times per year. What
will the account balance be after 5 years?

Answers

Answer:

$7,390.15

Step-by-step explanation:

A = $7,390.15

A = P + I where

P (principal) = $6,688.00

I (interest) = $702.15

First, convert R as a percent to r as a decimal

r = R/100

r = 2/100

r = 0.02 rate per year,

Then solve the equation for A

A = P(1 + r/n)^nt

A = 6,688.00(1 + 0.02/6)^(6)(5)

A = 6,688.00(1 + 0.0033333333333333)^(30)

A = $7,390.15

Summary:

The total amount accrued, principal plus interest, with compound interest on a principal of $6,688.00 at a rate of 2% per year compounded 6 times per year over 5 years is $7,390.15.

The population of a village has increased this year by 8 percent.This year it's population is 10,800.How much was it's population last year?​

Answers

Answer:

SOLUTION:-

Let,last year population be x.We have last year population+Increased population=10,800

[tex]x + 8\% \: of \: x = 10800[/tex]

[tex]\displaystyle{x + \frac{8x}{100} = 10800 }[/tex]

[tex]\displaystyle{ \frac{100x + 8x}{100} = 10800}[/tex]

[tex]\displaystyle{ \frac{108x}{100} = 10800}[/tex]

[tex]108x = 10800 \times 100[/tex]

[tex]108x = 1080000[/tex]

[tex]x = \displaystyle{ \frac{1080000}{108} }[/tex]

[tex]x = 10000[/tex]

Therefore,required last year population=10000

Answer:

The Correct Answer is 10,000.

Step-by-step explanation:

Becuase The Question itself is providing us that this year it increased by 8%. Then the said that the total population for this year is 10,800. So, that tells us that the 8% equal 800. 10,000+800=10,800.

10,800-800=10,000

The correct answer is 10,000.

Hope this helps you!!

Don't forget to Mark me Brainleast if my answer is correct!!

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A total of $8000 is invested: part at 6% and the remainder at 10 %. How much is invested at each rate if the annual interest is $750?​

Answers

Answer: $400 was invested

Step-by-step explanation: Based on the scenario in the question, our calculation goes thus:0.11x + 0.06(8000 - x) = 5000.11x + 480 - 0.06x = 5000.11x - 0.06x = 500 - 4800.05x = 20x = 20/0.05x = 400

$400 was invested at 11% Also, 8000 - 400 = 7600 invested at 6%


BRAINLIEST would make my day :D

Could someone help me to find the answer for this question, pls help

Answers

They answer is: summer at both the poles

I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER

Answers

Answer:

Big bro I can barley read the image but here we go.

Angle B = 51

Angle E = 65?

So to solve if we know angle e is 65 and the angles are identical to eachother then we can say

4y - 3 = 65

4y = 62

y = 15.5

NEED HELP PLEASE SINE/COSIGN LAW QUESTION RIGHT THE ANSWER OUT ON A PIECE OF PAPER AND SEND IT IF YOU HAVE TO MAKE SURE ITS CLEAR AND CORRECT. 45 points + brainliest​

Answers

Answer:

sine=opposite/hypotenuse

cosine=adjacent/hypotenuse

tangent=opposite/adjacent

a: 42

b: 135 km/h

Step-by-step explanation:

For part A, you are given the adjacent and opposite side lengths so you need to use the tangent formula. On the calculator, it is tan^-1 (90/100)

For part B, I used the pythagorean theorem and did 100^2+90^2= 18100 and then took the square root of that to get 135.

A price of a motorcycle is Rs 175000. The year rate of deprecation is 4%. Find the price of motorcycle after 3 years

Answers

[tex]FV = PV (1 - \frac{r}{100})^n\\FV = 175000 (1 - \frac{4}{100})^3\\[/tex]

FV = Rs 154828.8

Mira buys a telescope that costs $180. She has to pay 4% sales tax. how much will she pay in all

Answers

$187.2 Explanation: the total before take is $180 which is 100% tax is 4%. The total plus 4% sales tax is 104% of the original $180. If you shift the numbers two places(as you do when converting % to decimals) you get 1.04. 180 x 1.04 = 187.2

Mira would pay $187.2

What is the formula for tax rate?

"Tax rate = (Tax amount / Price before tax) × 100% "

What is the formula for tax amount?

"Tax amount = Final price - Price before tax"

For given question,

Mira buys a telescope that costs $180.

⇒ Price before tax = $180

sales tax = 4%

Let 'm' be the tax amount.

Using the formula of tax rate,

⇒ Tax rate = (Tax amount ÷ Price before tax) × 100%

⇒ 4% = ([tex]\frac{m}{180}[/tex]) × 100%

⇒ 0.04 × 180 = m

⇒ m = 7.2

Using the formula for the tax amount,

⇒ Tax amount = Final price - Price before tax

⇒  Final price = Tax amount + Price before tax

⇒  Final price = 7.2 + 180

⇒  Final price = $187.2

Therefore, Mira would pay $187.2

Learn more about the tax rate here:

brainly.com/question/16890531

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A rectangle is such that its breadth is 2m less than its length. Find the length of the rectangle if the perimeter is 8mP​

Answers

[tex]\huge\mathbb\purple {✒✨ ANSWER ✨⚘}[/tex]

A rectangle is such that its breadth is 2m less than its length. Find the length of the rectangle if the perimeter is 8mP

[tex]ANSWER & SOLUTION[/tex]

Let breadth = XTHEN length=X+2Perimeter = 2(X + 2 +. X)Thus 2(2X + 2) = 84X + 4 = 84X = 4

Divide both sides by the same factor

[tex]4 \times = 4 \\ \frac{4 \times }{4} = \frac{4}{4} [/tex]

Cancel terms that are in both the numerator and denominator

Divide the numbers

[tex] x = \frac{4}{4 } [/tex][tex]\large\mathtt\green {x = 1 }[/tex]#BRAINLY EVERYDAY

please i really need help right now 25 points

Answers

Answer:

C.

Step-by-step explanation:

1) domain is: x≥7; range f(x)≥9.

2) answer C

How many rolls of wallpaper, each 10 yards long and 24 inches wide, will paper the sides of a room 12.1 feet by 17.1 feet and 8 feet high, deducting 129 ft2 for doors and windows?

Answers

Answer:

That corresponds to a width of 3.5 feet, so a yard of paper covers an area of 3 x 3.5 = 10.5 square feet

If the measure of angle 1 is (3 x minus 4) degrees and the measure of angle 2 is (4 x + 10) degrees, what is the measure of angle 2 in degrees?

Answers

Answer:

its 58

Step-by-step explanation:

The measure of angle 2 is 58 degrees

How to determine the measure of angle 2?

The figure that completes the question is added as an attachment

The given parameters are:

Angle 1 = 3x - 4Angle 2 = 4x + 10

Both angles add up to 90 degrees.

So, we have:

3x - 4 + 4x + 10 = 90

Evaluate the like terms

7x = 84

Divide both sides by 7

x =12

Substitute x =12 in Angle 2 = 4x + 10

Angle 2 = 4 * 12 + 10

Evaluate the expression

Angle 2 = 58

Hence, the measure of angle 2 is 58 degrees

Read more about angles at:-

https://brainly.com/question/24839702

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Luke works in the shipping department of a toy company

Answers

Answer:

Could you send the question properly so I can Help you with the answer

Step-by-step explanation:

Thanks

Answer:

I don't understand the question.

please answer the question in the picture below

Answers

Answer:

E

Step-by-step explanation:

5 is to ST    as   ST is to (5+7)

5/ST = ST/12    (ST)^2 = 60    ST = sqrt (60) = 2 sqrt 15

PLEASE HELP ME WITH THIS!!!!

Answers

Answer:

D: (x,y) → (x +1, y - 8)

Step-by-step explanation:

The red shape, KHIJ, is similar to the blue shape, KHIJ.

Looking at the shapes from the points K, Blue K is forward on the x-axis by 1, Hence x + 1.

Lokkin at the same points, but on y-axis this time. Red K is up 2 and Blue K is down 6. 2 + 6 = 8. Since the blue shape is down, make the 8 into -8. Now you have y -8.

There are 700 students at Bowman High School. The students come from Wylie Middle School, Parker Middle School, and Richardson Middle School. Of the 28 students in Mr. Henry's gym class, 4 are from Richardson Middle School.
Based on this information, what is the best prediction for the number of students at Bowman High School that come from Richardson Middle School?

Answers

The best prediction for the number of students at Bowman High School that come from Richardson Middle School is; 175

How to find proportions?

We are given;

Total number of students = 700

Number of students in Mr. Henry's gym class = 28

Number of students in Mr. Henry's gym from Richardson Middle School = 4

Thus, to find the best prediction for the number of students at Bowman High School that come from Richardson Middle School is simply;

Number of students  = 700/4

Number of students = 175

Rad more about proportions at; https://brainly.com/question/1781657

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Loojk ate the rectangle a) A square has the same area as the rectangle above what is the side length of this square

Answers

Answer: The length of one side of the square is 10 sq cm.

Step-by-step explanation:  Area of the rectangle = 4 x 25 = 100 sq cm.

Area of a square = s x s, where s is the length of the side of the square.

So, s x s = 100

Or, s^2 = 100

And, s = sqrt(100) = 10

I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER

Answers

Answer:

16

Step-by-step explanation:

What is your 95% credible interval for the number of people who will be alive in the year 3000 CE (including digital people)? Explain your reasoning by giving a roughly one-sentence justification for each important step of your reasoning.
A 95% credible interval means that you believe there is a 95% chance that thetrue value will fall within your interval. If I were 95% confident that the number of books in a library was between 100 and 500, then my 95% credible interval would be 100-500.

Answers

Answer:

Because there are many different ways to teach introductory astronomy, we have made the text as flexible as we could. Math examples are shown in separate sections throughout, so that you can leave out the math or require it as you deem best. Each section of a chapter treats a different aspect of the topic being covered; a number of sections could be omitted in shorter overview courses and can be included where you need more depth. And, as we have already discussed, you can customize the book in a variety of ways that have never been possible in traditional textbooks.

Step-by-step explanation:

This book is written to help students understand the big picture rather than get lost in random factoids to memorize. The language is accessible and inviting. Helpful diagrams and summary tables review and encapsulate the ideas being covered. Each chapter contains interactive group activities you can assign to help students work in teams and pool their knowledge.

HELP ME OUT PLS!!!!!!!!!!!!!!!!​

Answers

Answer:

D) -9

Step-by-step explanation:

2(x - 3) + 1 = 3x + 4

-> 2x - 6 + 1 = 3x + 4

-> 2x - 5 = 3x + 4

-> 2x - 3x = 4 + 5

-> -x = 9

-> x = - 9

Simplify.
2v^6•7u^7u^-5xv^-3•5x¯²

Use only positive exponents in your answer.

Answers

Answer:

(70*v^3*u^2)/x

Step-by-step explanation:

(2v^6 * 7u^7 * u^-5 * x * v^-3 * 5 * x^-2)

(2 * 5 * 7) * (v^6 * v^-3) * (u^7 * u^-5) * (x * x^-2)

70 * v^(6 - 3) * u^(7 - 5) * x^(1 - 2)

70 * v^3 * u^2 / x

A pronghorn running up a steep cliff to escape its predator covered 45 miles in 1 hour and 45 minutes.

Answers

Answer:

25 . 71 mph

Step-by-step explanation:

45 miles in 1.75 hr

45 miles / 1.75 hr = 25.71 mph

im sorry i just suck i need help again pllsssssssssssss

Answers

ur answer is D i hope this helped!

Find the area of this trapezoid. Be sure to include the correct unit in your answer.

Answers

Answer:

the answer is in the picture

Please help me thank you!

Answers

Answer:

46.7%

Step-by-step explanation:

The fraction of youths preferring printedbooks

= 21/(21+24)

= 21/45

= 21 *100 / 45

= 46.67%

Which equation can be simplified to find the inverse of y = 2x2?
StartFraction 1 Over y EndFraction = 2 x squared
y = one-half x squared
–y = 2x2
x = 2y2

Answers

The correct answer would be: x = 2y^2

Answer:

its D

Step-by-step explanation:

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