Mathematics High School

A chemistry teacher has a flask of a 45% acidic solution and another bottle of 28% acidic solution.
How much would he need to use of each container to arrive at a final solution that is 100 mL of a 33.95% solution?

Answers

Answer 1

Answer:

35 ml of 28% acidic solution and 65ml of 45% acidic solution is to be used

Step-by-step explanation:

Let the number of ml of the 45% solution be x while that of the 28% solution be y

Mathematically;

x + y = 100 ••••••(i)

Furthermore

45% of x + 28% of y = 33.95% of 100

0.45x + 0.28y = 33.95 ••••••(ii)

From i,

x = 100-y

put this into ii

0.45(100-y) + 0.28y = 33.95

45 - 0.45y + 0.28y = 33.95

45 - 33.95 = 0.45y - 0.28y

11.05 = 0.17y

y = 11.05/0.17

y = 65

Recall

x = 100 - y

x = 100 - 65

x = 35 ml

Related Questions


A calculator screen shows a number in scientific notation as 4.18E‒8. Write this number in standard form.

Answers

Answer:

.0000000418

Step-by-step explanation:

So you will start from the decimal and move 8 places to the left.

E-8 is the same as 10^-8 so you will move to the left

If it was E8 you would move to the right 8 places.

Evelyn is making a candy that contains 25% dark chocolate and the rest milk chocolate. The candy has 3 pounds of milk chocolate.

Answers

Answer:

Dark chocolate = 1 pound

Step-by-step explanation:

I have no idea what I'm supposed to find but if its the amount of dark chocolate then its 1.

ASAP WILL MARK BRAINLIEST
If UW = 6x - 35, find UW.

Answers

Answer:

u= 6x-35/w Hope this helped <3

Step-by-step explanation:

Let's solve for u.

uw=6x−35

Step 1: Divide both sides by w.

Step-by-step explanation:

Answer:-

This all will be attempted according to Figure.

We can see in figure ,

[tex]\tt{UW = 4x-20+19}[/tex] _____(1)

Now, question says that:-

[tex]\tt{UW = 6x - 35}[/tex]_______(2)

Equating ,

(1)=(2)

So,

[tex]\tt{4x-20+19 = 6x - 35}[/tex]

[tex]\tt{4x-1 = 6x - 35}[/tex]

[tex]\tt{4x-6x = +1- 35}[/tex]

[tex]\tt{-2x = -34}[/tex]

[tex]\tt{x = \dfrac{34}{2}}[/tex]

[tex]\tt{x = 17}[/tex]

Now, we need UW.

Placing it in any Equation, Let me take (2),

6(17) -35

= 102 - 35

So, 67 is the answer.

Hope it helps :)

A train leaves the station at 6:00 P.M. traveling west at 80 miles per hour. On the parallel track, a second train leaves the station 3 hours later traveling west at 100 miles per hour. At what time will the second train catch up with the first train?

SHOW YOUR WORK PLZ I WILL GIVE YOU BRINLEY
IF YOU SHOW YOUR WORK WORK

Answers

Answer:

9 AM

Step-by-step explanation:

Let t = traveling time of the 1st train, when the 2nd train catches up

Then

(t-3) = traveling time of the the 2nd train.

When this occurs, both trains will have traveled the same distance;

Write a distance equation: Dist. = speed * time

100(t-3) = 80t

100t - 300 = 8t

100t- 80t = +300

20t = 300

t = 300/20

t = 15 hrs.

Time = 6 PM + 15 hrs. = 9 AM the next day

Write the equation of a line ( slope intercept form y = mx + b)

Answers

Answer:

y=1/4x-1

Step-by-step explanation:

i knew the general equation of the line and i knew the slope would be a fraction because the line is rlly flat

-1 would be the b and i plugged in simple fraction values for m

i checked in desmos and they look similar

hope this helps and is correct <3

PLEASE HURRY: Which value is NOT located between these two numbers on the
number line?

Answers

Answer:

C.) π/9

Step-by-step explanation:

√9/3 = 1

2π ≈ 6.28

The only value that is not between these two numbers is π/9 which is approximately 0.35.

Helppp I dont get ittt

Answers

Answer:

IIII don't get ittt either

Step-by-step explanation:

Jimmy sells cookies in bags of dozen cookies for $4.50. If the cost varies directly to the number of
cookies, how much would it cost for a bag containing 30 cookies?

Answers

Answer:

I'm pretty sure it would cost $11.25 since 6 cookies would be $2.25 if you divide the amount for a dozen in half. I hope it was right!

Step-by-step explanation:

6. In the quadratic equation x2 + 8x - 2 = 0, what are the values of a, b, and c?
a. a = 0, b = 3, C = -1
c. a = -3, b = 0, C = -1
b. a = 1, b = 8, C = -2
d. a = 3, b = 0, C = 1​

Answers

Step-by-step explanation:

letter b ang sagot sa number 6

Diagonals of a parallelogram ABCD intersect at O. If∠BOC = 90º and ∠BDC = 50º, then ∠OAB is (A) 90º (B) 50º (C) 40º (D) 10º​

Answers

Answer:

diagonals

lf= Boc =90°

Bcd = 50°

QAB (A) ? jadi jawaban nya

(D). 10°

Step-by-step explanation:

Diognals of a Parallegram ABCD intersat at o

lg and then is.

"sorry ya kalo jawaban nya salah "

What is an equation of the line that passes through the point
(-6, -2) and is parallel to the line 3x – 2y = 2?

Answers

Answer: y=3/2x+7

Step-by-step explanation:

To find the equation of the line that passes through the given point, let's first convert the given equation to slope-intercept form.

3x-2y=2           [subtract both sides by 3x]

-2y=-3x+2        [divide both sides by -2]

y=3/2x-1

Now that we have the equation in slope-intercept form, we know that the slope must stay the same because parallel lines NEVER touch. All we have to do is plug in the given point to find the y-intercept.

-2=3/2(-6)+b    [multiply]

-2=-9+b            [add both sides by 9]

b=7

Now, we know that the parallel equation is y=3/2x+7.

Solve 2(x + 1) = 2x + 2. (1 point)

Answers

[tex]\huge\green{Answer}[/tex]

infinite solutions

Explanation:

note that

2(x+1)=2x+2

⇒2x+2=2x+2

since both sides of the equation are equal then any value

of x is a solution to the equation

⇒ there are an infinite number of solutions

Answer:

true

Step-by-step explanation:

2(x + 1) = 2x + 2

2x + 2 = 2x + 2

0 = 0

i need help with this geometry

Answers

(1,4)

The figure moves right 1 and up 4

Simplify 3 square root of -96

Answers

Answer: y = x 2 + 93 x − 288

Your Welcome

I need help but ill give brainless but dont guess actally try cuz i dont get it

Answers

Answer:

The length of AB is 3 squares

Length of A' B' is 9 squares

Point A is (2,1)

Point a' is ( 6,3)

Step-by-step explanation:

I am not sure what the scale factor is though. I have never heard of it. Sorry!

please offering 8 points and brainilest awnser​

Answers

Answer: 2,6,10,14

Step-by-step explanation:

Answer:

2,6,10,14

Step-by-step explanation:

2,6,10,14 because X is input and the Y column is output

Identify the domain of the function shown in the graph,
A. x is all real numbers,
O B. -55x55
O C. Oss 5
D. x > 0
How do I identify this function?

Answers

Answer:

A is the correct answer I hope so!!!

What is
-15 times the square root of 10 divided by 9? And whats the square root of that answer?

Answers

Ans: About 2.30

-15 x 3.16 / 9 = x sqrt

-15 x 3.16 = - 47.4

-47.4 / 9 = -5.27

-5.27 sqrt = About 2.30


Hope this helped :)

A recipe states that 5 servings of peanuts have 1,250calories. How many calories is 2 servings of peanuts? *
7 points
Captionless Image
250 calories
375 calories
500 calories
750 calories

Answers

Answer:

500 calories

Step-by-step explanation:

divide the 1250 calories by the initial five servings and you get 250 then multiply that by the 2 servings they are asking for and you get 500 calories

Answer:

500

Step-by-step explanation:

you take 1,200 and decide by 5 then take 250 and multiply by 2 to get 500

Please help ASAP thank you

Answers

Step-by-step explanation:

1.) x + 37 + x + 67 + 90 = 180

combine like terms

2x +194 = 180

subtract 194 both sides

2x = -14

x = -7

2.) 63 + 86 = x

x = 149

Answer:

1. (x+37) + (x+67) + 90° = 180°

=> x + x + 37 + 67 + 90 = 180

=> 2x +194 = 180

=> 2x = 180 –194

=> 2x = –14

=> x = –14/2

=> x = –7

2. [The measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles. ]

x = 63° + 86°

=> x = 149°

Suzy plants 4 saplings in a row in her garden the distance between two adjacent saplings in 3/4 meters find the distance between the first and the last sapling? please show me how to work this out with the answer​

Answers

Answer:

The answer is 3 meters.

Step-by-step explanation:

Suzy has 4 saplings the distance between two of the is 3/4

So if the distance from one to another is 3/4 then you have to do 3/4 (.75) times 4. Giving you the answer of 3 meters.

Answer: three meters

Step-by-step explanation:

Franny took a roadtrip to her grandmother's house. She drove at a constant speed of 60 miles per hour for two hours. She took a break and then finished the rest of her trip at a constant speed of 50 miles per hour for two hours. What was the total distance of her trip?

Answers

Answer:

220

Step-by-step explanation:

60x2=120

50x2=100

100+120=220

The function A = 28x- x^2, where x = width, gives you the area of a dog pen in square feet. What is the maximum area? Round to the nearest tenth as necessary​

Answers

Answer:

max A=42x

Step-by-step explanation:

Triangle ABC is a right triangle.

Triangle A B C is a right triangle. Angle A C B is 90 degrees, angle C B A is 31 degrees, and angle B A C is 59 degrees.
What is the relationship between angles A and B?

They are congruent.
They are complementary.
They are supplementary.
There is no relationship between them.

Answers

Answer:

B JUST DID THE QUIZ

Step-by-step explanation:

FOR FUTURE PPL ON EDGE 2022!!

The relationship between angles A and B is B. They are complementary.

What are the 3 sides of the triangle?

In a proper triangle, the hypotenuse is the longest aspect, an "opposite" aspect is the only across from a given attitude, and an "adjacent" side is subsequent to a given angle. We use special words to describe the perimeters of proper triangles.

What are the elements of a triangle?

All triangles have three aspects and three corners (angles). The point at which two sides of a triangle meet is known as a vertex. the base of a triangle may be any one of its 3 aspects, but it also includes the lowest one.

Learn more about Triangle here https://brainly.com/question/17335144

#SPJ2

I need help on this. Please help me!!!

Answers

Answer:

i think in order it would go c, b, d

Answer:

1. D

2. B

3. A

Step-by-step explanation:

1. This is the only graph with a negative y-int.

2. Proportional means the graph has a y-int of zero and this graph is the only graph that does.

3. This is the only graph with a positive slope.

Now, solve use the equation to solve for w.
25w + 200 = 750
a. w=22
b. w=25
c. w=38
d. w=28

Answers

Answer:

Option A

Step-by-step explanation:

[tex]25w+200=750\\\\25w+200-200=750-200\\\\25w=550\\\\\frac{25w=550}{25}\\\\\boxed{w=22}[/tex]

Hope this helps.

When negative five is subtracted from a number the result is 10. Find the number.
-5
15
05
-15

Answers

-15-5=10 that would be the answer

⚠PLEASE! THIS IS DUE TONIGHT! FREE BRAINLIEST!⚠

UX bisects ∠VUW. Complete the proof that △UWX≅△UVX.
the asnwer is either SAS or SSS

Answers

Answer:

SAS theorem

Step-by-step explanation:

Answer: SAS theorem :-D BREH

Step-by-step explanation:

Please help with these 2 questions!!

Answers

Answer:

for the first it's y=6x and for the second it's the last options she mad mutiplying error

Answer:

1.) y = 6x   2.) She made a multiplying error in the table.

Step-by-step explanation:

1.)

Let's find the slope:

m = 36 - 24 / 6 - 4

m = 12/2

m = 6

Therefore, y = 6x

2.)

Amanda's equation checks out. It seems her problem is her multiplying.

Need answer now please


Use the graph to fill in the blank with the correct
number.

f(-2) =____



Numerical Answers Expected!

Answers

Answer:

f(-2) =2

Step-by-step explanation:

f(-2) means we want the y value when x = -2

When x = -2 the function has a y value of 2

f(-2) =2

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