A chemist has three different acid solutions.
The first solution contains 15 % acid, the second contains 30 % acid, and the third contains 50 %
acid,
She created 78 liters of a 35 % acid mixture, using all three solutions. The number of liters of 50 %
solution used is 3 times the number of liters of 30 % solution used.
How many liters of each solution was used?

Answers

Answer 1

Answer:

Its 50 and it can reach 60


Related Questions

What is the volume of Prism B if the volume of Prism A is 1120 in??

Answers

Answer:

  140 in³

Step-by-step explanation:

The ratio of volumes of similar objects is proportional to the cube of the ratio of the linear dimensions.

__

Here, prism B is half the height of prism A, so will have (1/2)³ = 1/8 of the volume of prism A:

  Vb = (1/8)×Va

  Vb = (1/8)×(1120 in³) = 140 in³

The volume of Prism B is 140 cubic inches.

Question 3
Compute the probability of Susan turning 44 years old (event A), given that Carl has reached the age of 44 (event B).

Answers

Answer:

Events A and B are independent of each other, so P⁡(B∣A)=P⁡(B)=0.95726.

Explanation -

I got this answer from Plato.

What's the median for 0 2 4 6 8 10

Answers

Answer:

5 would be the midian

Step-by-step explanation:

You would need to add 0+2+4+6+8+10

Then count how many numbers there are (6)

Then put it in a fraction

30/6

Then divide and then you get 5

Answer:

21,67

Step-by-step explanation:

0+2+4+6+8+10 all divided by numbers in the set data[6]=21,67

For problems 11-14, identify the property shown. 11. 16×p=16.​

Answers

Answer:

Step-by-step explanation:

11. identity property

12. associative property

13. commutative property

14. zero property

Un terreno rectangular cuyo ancho mide 20 mts menos que su largo. Su área del terreno es de 150 metros cuadrados. ¿Determina las medidas del largo y del ancho?​

Answers

Answer:

you are a good friend Sayed im not sure if I can get it done before I get my license back and the whole time we go back and be out in a bit I guess that was the best thing I ever heard of the beast's I have

The graph shows the distance (d) in miles that an animal runs at a constant speed in (t) minutes. Which equation represents this situation.

Answers

There is no graph or equations shown sorry

A toy is shaped as a triangular prism. The toy has a
base of 108 square inches. What is the height of the toy if
the volume is 729 cubic inches?

Answers

Answer:

[tex]\huge\boxed{\sf h = 6.75 \ in.}[/tex]

Step-by-step explanation:

Given Data:

Base area = [tex]A_{B}[/tex] = 108 in.²

Volume = V  = 729 in.³

Required:

Height = h = ?

Formula:

[tex]V=A_{B}h[/tex]

Solution:

For h, rearranging formula:

[tex]\displaystyle h = \frac{V}{A_{B}} \\\\h =\frac{729 \ in.^3}{108 \ in.^2} \\\\h = 6.75 \ in.\\\\\rule[225]{225}{2}[/tex]

Using synthetic division, what is the width of the rectangle?
5 x squared + 4 x minus 6
5 x squared + 34 x + 108 + StartFraction 306 Over x + 3 EndFraction
5 x cubed + 4 x squared minus 6 x
5 x squared + 34 x + 108 + StartFraction 306 Over x minus 3 EndFraction

Answers

Answer:

c

Step-by-step explanation:

c

Answer:

its A!!!

Step-by-step explanation:

Keiko sold 3 less than three-fourths of his sister’s sales. Which expression represents what Keiko sold?

Answers

The answer to your question is 3/4x-3

Lines a, b, c, and d Intersect as shown.
124
95
42°
53
39°
95°

What is x ?

Answers

Answer:

95 is the answer I took the test

Which shows the solution set to the
inequality below?
2x+35-5
A. H
-5 -4 -3 -2 -1
0 1
++
2 3 4 5
-
B. +
HHHHHH
-5 -4 -3 -2 -1 0 1 2 3 4 5
C. HA
++++
-5 -4 -3 -2 -1 0 1
0 1 2 3 4 5
D.
-5 -4 -3 -2 -1
+++++
0 1 2 3 4 5

Answers

Answer:

The answer is C hope this can help you out!

Rewrite the equation below so that it does not have fractions.
3+ 2/3 x = 2/5

Answers

Answer:

3 + 2 divided by 3 = 2 divided by 5

Step-by-step explanation:

In analysis of variance, then the term factor refers to_______
a) a dependent variable
b) a treatment total
c) an independent variable (or quasi-independent) variable
d) a treatment mean

Answers

C an independent variable

Mai received and spent money in the following ways last month. For each example, write a signed number to represent the change in money from her perspective.



1. Her grandmother gave her $25 in a birthday card.


2. She earned $14 dollars babysitting.


3. She spent $10 on a ticket to the concert.


4. She donated $3 to a local charity.


5. She got $2 interest on money that was in her savings account.

Answers

The signed numbers that represent a change in money from her perspective is:

+$25

+$14

-$10

-$3

+$2

What are the signs to put in front of the amounts?

When a person receives money, earns interst or his paid wages, the amount of money the person has increases. Thus, the sign to be used is the addition sign(+).

When a person pays for an item, donates to charity or loses money, the amount of money the person has reduces. Thus, the sign to be used is the subtraction sign (-).

To learn more about addition, please check: https://brainly.com/question/349488

Which expression can be simplified to the form 3\y + 3, where y is a positive integer?

Answers

Answer: Choice B) [tex]\sqrt{63}[/tex]

========================================================

Explanation:

Let's rewrite the given expression like so

[tex]3\sqrt{y+3}=\sqrt{3^2}\sqrt{y+3}\\\\3\sqrt{y+3}=\sqrt{9}\sqrt{y+3}\\\\3\sqrt{y+3}=\sqrt{9(y+3)}\\\\[/tex]

We can see that the radicand is a multiple of 9 since 9 is a factor.

This immediately rules out choices C and D because 75 and 84 are not multiples of 9.

-------------

Plug in the smallest positive integer (1) for y to get

[tex]\sqrt{9(1+3)}=\sqrt{9(4)} = \sqrt{36}\\\\[/tex]

The radicand 36 is larger than the radicand for choice A (18), meaning we can rule out choice A. There's no way to get a radicand of 18 since y = 1 is the smallest we can go for.

We can however get to 63 by using y = 4

[tex]\sqrt{9(4+3)}=\sqrt{9(7)} = \sqrt{63}\\\\[/tex]

Showing that choice B is of the form [tex]3\sqrt{y+3}[/tex] where y is a positive integer, specifically when y = 4.

[tex]tan((x/2)-(pi /2))=\sqrt2[/tex]

Answers

[tex]\textit{Cofunction Identities} \\\\ sin\left(\theta-\frac{\pi}{2}\right)=-cos(\theta) \qquad\qquad cos\left(\theta-\frac{\pi}{2}\right)=+sin(\theta) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ tan\left(\frac{x}{2}~~ - ~~\frac{\pi }{2} \right)~~ = ~~\sqrt{2}\qquad \qquad \qquad \stackrel{\textit{let's make for a second}}{\cfrac{x}{2}=\theta } \\\\[-0.35em] ~\dotfill[/tex]

[tex]tan\left(\theta-\frac{\pi}{2}\right)\implies \cfrac{sin\left(\theta-\frac{\pi}{2}\right)}{cos\left(\theta-\frac{\pi}{2}\right)}\implies \cfrac{-cos(\theta )}{+sin(\theta )}\implies -cot(\theta )\implies -cot\left( \frac{x}{2} \right)[/tex]

[tex]-cot\left( \frac{x}{2} \right)~~ = ~~\sqrt{2}\implies cot\left( \frac{x}{2} \right)=-\sqrt{2} \\\\\\ cot^{-1}\left[ cot\left( \frac{x}{2} \right) \right]=cot^{-1}\left(-\sqrt{2} \right)\implies \cfrac{x}{2}=cot^{-1}\left(-\sqrt{2} \right) \\\\[-0.35em] ~\dotfill\\\\ ~\hfill x=2\left[ cot^{-1}\left(-\sqrt{2} \right) \right]~\hfill[/tex]

100 points
Aaron goes to his favorite hamburger joint with a friend and orders two hamburgers and two French fries. His total cost is $10.50. The next week, he goes with two other friends. They order four hamburgers and three French fries. This time the total is $19.50. Choose two equations that could be used to determine the cost of hamburgers (h) and French fries (f).

Answers

Each french fry costs $1.5 and hamburger $3.75

=================

two hamburgers +  two French fries = $10.50 ____ equation 1four hamburgers + three French fries = $19.50 _____equation 2

Consider hambugers as "h" and fench fries as "f"

2h + 2f = 10.5 ___ equation 14h + 3f = 19.5 ___ equation 2

We can solve them to find the cost of each hambuger and fench fry

Solve for f :

(10.5 - 2f)/2 = (19.5 -3f)/442 - 8f = 39 -6f-6f + 8f = 42 - 392f = 3f = 1.5

Solve for h :

h = (10.5 - 2f)/2h = (10.5 - 2(1.5))/2h = 3.75

Find the measure of each angle in the isosceles trapezoid.

Answers

Answer:

J=118

L=62

M=62

Step-by-step explanation:

In an isoseles trapezoid, the top angles are congruent to each other and the bottom angles are congruent to each other. Opposite angles are supplementary, and all angles together add up to 360.

In a​ lottery, the top cash prize was ​$657 ​million, going to three lucky winners. Players pick five different numbers from 1 to 53 and one number from 1 to 43.
A player wins a minimum award of $200 by correctly matching four numbers drawn from the white balls​ (1 through 53​) and matching the number on the gold ball​ (1 through 43​). What is the probability of winning the minimum​ award?

Answers

Answer:

1 chance in 123,396,455

Step-by-step explanation:

Number of permutations of 5 out of the 53 = 53*52*51*50*49 = 344362200

Number of permutations of 4 out of these 5 correct = 120

So number permuations for first 53  = 344362200/ 120 = 2869685

So for minimum prize there are 2869685 * 43 = 123396455 perms.

Find the minimum distance from the parabola x-y^2=0
to the point (0,3).

Answers

Answer:

  √5

Step-by-step explanation:

The distance from the given point to the curve can be found using the distance formula. The resulting expression can be minimized to find the minimum distance.

  d = √((x2 -x1)² +(y2 -y1)²)

__

Point on the Parabola

A point on the parabola can be described by ...

  x -y² = 0

  x = y² . . . . . add y²

Then a point on this curve is ...

  (y², y)

Distance to Given Point

The distance to it from (0, 3) is ...

  d = √((0 -y²)² +(3 -y)²) = √(y⁴ +y² -6y +9)

Find the Minimum

The distance will be minimized when the derivative of the radical expression is zero:

  d(y⁴ +y² -6y +9)/dy = 0 = 4y³ +2y -6

  0 = 2y³ +y -3 . . . . . . . . remove a factor of 2

This will have a rational root in the set {±1, ±3}.

Trial and error shows that y=1 is the only real solution to this equation.

__

Then the minimum distance is ...

  d = √(1⁴ +1² -6·1 +9) = √5

_____

Additional comment

The attached graph shows that a circle with radius √5 centered at (0, 3) will intersect the parabola at exactly one point. That confirms our solution.

Stephan cuts a 50-yard ribbon. One piece is 7 yards longer than the other. What is the length of each piece?

Answers

Answer:

It should be 32 and 18 but I'm bro entirely sure

A garden measures 10 ft by 10 ft.
What is the area of the garden in square inches?​

Answers

Answer:

1200 sq. in.

Step-by-step explanation:

(10x10)x12=100x12=1200

Write an expression that can be used to produce vector g from vectors e and f Explain how
you determined that expression.

Answers

Answer:

Step-by-step explanation:

vector e is (-1,5),f is (3,-4),g is (2,1)

2i+j=x(-i+5j)+y(3i-4j)

2=-x+3y (multiply by 5)

10=-5x+15y

1=5x-4y

add

11=11y

y=1

2=-x+3(1)

x=3-2=1

2i+j=1(-i+5j)+1(3i-4j)

Callie runs 30 minutes a day. She has already run 90 minutes this week. How many days will it take her to run at least 240 minutes?

Answers

240-90=150
150/30=5 MORE days (or 8 TOTAL days if that’s what you’re looking for)

Let g: R+R+ be defined by g(x) = x2 +1. Determine the domain, co-domain and range of g. ​

Answers

g(x)=x²+1

Domain:-

For any real x function is not undefined .

Domain belongs to R

Codomain belongs to R+

Range:-

x² always ≥0

Hence

range=[1,oo)

The Jones' old $47,000, 30 year, 12.8% mortgage has a monthly payment of $512.58. Over the 6 years since they took the loan, mortgage rates dropped. They can now apply for a mortgage at 9.05%, which will result in a new monthly payment of $369.36. To refinance, they must pay $1,020 in closing costs and a $480 prepayment penalty. Find the net amount they will save in the first year.

Answers

The net amount that will be saved by the Jones for the first year will be $814.32.

How to calculate the net amount?

From the information given, the old mortgage yearly payment will be:

= Monthly payment × Months

= $259.32 × 12

= $3111.84

The new monthly yearly payment will be:

= Monthly payment × Months

= $327.18 × 12

= $3926.16

Therefore, the net amount that will be saved will be:

= $3926.16 - $3111.84

= $814.32

Learn more about net amount on:

https://brainly.com/question/25906113

4. In 2003, Mississippi’s labor force totaled
1,312,700 persons. The unemployment rate in
the state was 5.6 percent. Approximately how
many people were employed in that year?
Round your answer to the nearest thousand.

Answers

employed: 1,312,700 people

total people : 1,312,700

unemployment : 5.6%

employed : 100% - 5.6% = 94.4%

employed people:

94.4% * 1,312,700 1239188.8≈ 1239189 people

Unemployed persons

5.6% of 13127000.056(1312700)73511

Employed persons

1312700-735111238989

which expression is equivalent to squareroot 36/25

Answers

The correct answer would be: 6/5

In the diagram below of ABC, AB ≅ AC, m∠A = 3x, and m∠B = x + 20.


What is the value of x?


A. 10

B. 28

C. 32

D. 40

Answers

Answer: B)28

Step-by-step explanation:

3x + x + 20 + x + 20 = 180  5x + 40 = 1805x = 140 x = 28°  





your checking account balance as ameasure of money you have in that account which type of scale nominal,ordinal?​

Answers

Answer:

Ratio

Step-by-step explanation:

1. Your checking account number as a name for your account. Nominal (renaming)

2. Your checking account balance as a measure of the amount of money you have in that account. Ratio

3. Your checking account balance as a measure of your wealth. Interval

4. The number you get from a machine (32, 33,...) as a measure of the time you arrived in line. Ordinal

5. The order in which you were eliminated in a spelling bee as a measure of your spelling ability. Interval

6. Your score on the first statistics test as a measure of your knowledge of statistics. Ratio

7. Your score on an individual intelligence test as a measure of your intelligence. Nominal

8. The distance around your forehead measured with a tape measure as a measure of your intelligence. Interval

9. A response to the statement "Abortion is a woman's right" where Strongly Disagree = 1, Disagree = 2, No Opinion = 3, Agree = 4, and Strongly Agree = 5, as a measure of attitude toward abortion. Ordinal

hope it helps:)

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