How many milliliters of pure acid must be added to 50 milliliters of a 40% acid solution to obtain a 50% acid solution?

Answers

Answer 1

Answer:

2.5 ml

Step-by-step explanation:

10% of the acid would be 2.5 ml so you'd have to add that to add the extra percent


Related Questions

Doing a basketball game Michael is six out of the 12 baskets he attempted if he has the same rate of errors tomorrow and he attends 48 baskets how about how many shots will he miss

Answers

Answer:

24

Step-by-step explanation:

the first time the rate was half the baskets, so the second time staying at the same rate it would be half the baskets again, which is 24.

How do u solve this bruv Pls help unfortunately i need to show work

Answers

Answer:

Step-by-step explanation:

Use vector addition

d = √(15² + 30²) = √1125 = 33.54...≈ 34 m

You take your mom out for lunch. The bill came to $28 and you would like to leave a 15% tip. What is the total cost?

Answers

Answer:

$32.2

Step-by-step explanation:

28/100×15%= 32.2

What are all the measures

Answers

Answer:

Step-by-step explanation:

in the picture

The function f(x) is an increasing function about which little else is known about other than f(2)=7 and f'(2)=5. Find (f^-1)'(7).

Answers

Since f(x) is (strictly) increasing, we know that it is one-to-one and has an inverse f^(-1)(x). Then we can apply the inverse function theorem. Suppose f(a) = b and a = f^(-1)(b). By definition of inverse function, we have

f^(-1)(f(x)) = x

Differentiating with the chain rule gives

(f^(-1))'(f(x)) f'(x) = 1

so that

(f^(-1))'(f(x)) = 1/f'(x)

Let x = a; then

(f^(-1))'(f(a)) = 1/f'(a)

(f^(-1))'(b) = 1/f'(a)

In particular, we take a = 2 and b = 7; then

(f^(-1))'(7) = 1/f'(2) = 1/5

The function f(x) is an increasing function about which little else is known about other than f(2)=7 and f'(2)=5. Then the value of (f⁻¹)'(7) is 1/5

How did we arrive at this value?

To find (f⁻¹)'(7), we can use the inverse function theorem. The formula for the derivative of the inverse function is given by:

[tex](f^{-1})'(y) = \frac{1}{f'(x)},[/tex]

where y = f(x). Since we know that f(2) = 7 and f'(2) = 5, we have x = 2 and y = 7. Substituting these values into the formula:

[tex](f^{-1})'(7) = \frac{1}{f'(2)} = \frac{1}{5}.[/tex]

Therefore,

[tex](f^{-1})'(7) = \frac{1}{5}.[/tex]

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What is the slope of the line shown?

Answers

Answer:

[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

First, it is going upwards from left to right so we know it'll be positive. Then we do the following:

[tex]\frac{rise}{run}=\frac{change.in.y}{change.in.x}=\frac{y_{2} -y_{1}}{x_{2} -x_{1}}=\frac{0--1}{2-0}=\frac{0+1}{2-0}=\frac{1}{2}[/tex]

("." in the second fraction is for separate words)

So the slope is [tex]\frac{1}{2}[/tex]

Hope this helps, have a nice day! :D

factorise completely 15ab+24bc​

Answers

To factor an expression is to rewrite the expression in a factored form

The factored expression of 15ab + 24bc is 3b(5a + 8c)

The expression is given as:

15ab + 24bc

Factor out b from the expression

15ab + 24bc = b(15a + 24c)

Factor out 3 from the expression

15ab + 24bc = 3b(5a + 8c)

The expression can no longer be factorized.

Hence, the factored expression of 15ab + 24bc is 3b(5a + 8c)

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PLEASE HELP

find b in y=mx+b
the points are (4,2) and (11,18)
PLEASE SHOW YOUR WORK
thank you!!

Answers

Answer:

b = -50/7

Step-by-step explanation:

1. The formula to find y-intercept (b) given two points is [tex]b = y_1 - m * x_1[/tex], but let's first find the slope using [tex]\frac{y_2-y_1}{x_2-x_1}[/tex].

[tex]\frac{18-2}{11-4}[/tex] [tex]\frac{16}{7}[/tex]

2. Now that we have the slope, let's use the formula for finding the y-intercept.

[tex]b = 2 - \frac{16}{7} *4[/tex] [tex]b = 2-\frac{64}{7}[/tex] [tex]b = 2 - 9\frac{1}{7}[/tex] [tex]b = -7\frac{1}{7}[/tex] [tex]b = \frac{-50}{7}[/tex]

Therefore, the y-intercept is -50/7.

Which of the following statements is false? (Math)

Answers

Step-by-step explanation:

Can You Explain In Brief?

Answer:

where are the statements

please check it

how many machines will be needed to complete a task in 8 days, given that 4 machine can complete the same task in 12 days

Answers

Answer:

6 machines

Step-by-step explanation:

Let x be the time needed for 1 machine to complete the job, so rate of one machine is (rate is the reciprocal of time)

[tex] \frac{1}{x} [/tex]

rate of 4 machines would be

[tex]1 \: job = 12 \times \frac{4}{x} = \frac{48}{x} \\ 1 \: macine \: takes \: 48 \: days[/tex]

[tex] \frac{48 \: days \: per \: machine}{8 \: days} = 6 \: machines[/tex]

The teachers bag weighs 5 pounds. How many ounces does his bag weigh?

Answers

Answer:

80.00

Step-by-step explanation:

His Bags weighs 80.00 in Ounces

The graph of Fx), shown below, has
the same shape as the graph of
G(X)=x2 but is shifted right by 3 units
and down by 2 units. Write the
equation for F(x)


Answers

Answer:

f(x) = (x - 3)²- 2

Step-by-step explanation:

Given the graph of f(x), where it has the same shape as the graph of g(x) = x², but is shifted right by 3 units, and down by 2 units.

The horizontal translation of the parent graph parabola, g(x) = x²,  is represented by y = (x - h)², where the graph shifts by h units to the right, such that h > 0.  

The vertical translation of the parent graph is represented by y = f(x - h)² - k, where the graph is vertically translated by |k | units downward, such that k < 0.

Therefore, the equation that represents the vertical and horizontal translations of the graph is: f(x) = (x - 3)²- 2.

What is the annual premium for $75,000, 10 year life insurance policy for a 40 year old male (Put answer to two decimal places)?
Life Insurance Chart
Age at Issue Term Insurance
Male Fem 10 year 20 year Straight Life
20 23 $2.50 $3.80 $12.67
25 28 $3.25 $5.84 $15.66
30 33 $3.82 $7.93 $18.98
35 38 $4.55 $10.33 $22.38
40 43 $5.78 $13.38 $28.77
45 48 $7.53 $17.56 $31.90

Answers

Answer:

About $437.25

Step-by-step explanation:

Using the table which gives the annual premium per $1000; the premium paid annually by the 40 year old male is $437.23

The total annual premium = $75000

Using the data in the table :

Annual premium per $1000 of coverage for a 40-year old male with a 10 - years life insurance policy = $5.83

The annual premium for $75,000 ;

Premium per $1000 × ($75000/$1000)

Annual premium = $5.83 × ($75,000/1000)

Annual premium = $5.83 × 75 = $437.25

Hence, the annual premium for the lifetime insurance based on the stated conditions is $437.25

A study examined blood pressure rates during three specific times in a 24 hour period within three groups. Which is the appropriate statistic to use in analysis

Answers

The appropriate statistic to use in the analysis is that of repeated measures.

Repeated measures is a term for a way of collecting, analyzing, and evaluating statistics that involve multiple measures of the same variable or Subject.

According to the above, repeated measures are the appropriate statistic for the analysis of the blood pressure rate during three specific moments.

Note: This question is incomplete because the options are missing. Here are the options.

T-TestLinear regressionMeanRepeated measures

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The hour hand on a certain clock is 8.2 cm long. Find the tangential speed of of the tip of this hand during normal operation.

Answers

The tangential speed of the tip of this hour hand is 0.143 mm/s.

The tangential speed v = rω where r = length of hour hand = 8.2 cm = 0.082 m and ω = angular speed = 2π/T where T = period of hour hand = 60 min = 60 min × 60 s/min = 3600 s.

Substituting the values of the variables into the equation, we have

v = rω

v = r2π/T

v = 0.082 m × 2π/3600 s

v = 0.164π/3600 m/s

v = 0.5152/3600 m/s

v = 0.000143 m/s

v = 0.143 mm/s

So, the tangential speed of the tip of this hour hand is 0.143 mm/s.

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Answer:

0.00001 m/s, 1 X 10^-4 m/s, 0.000012 m/s, or 1.2 X 10^-5 m/s

–––––––––––––––––––––––––––––––––––––––––––––––––––––––

Step-by-step explanation:

12 • 60 = 720

720 • 60 = 43,200

8.2 / (43200•24) = ~0.00001 m/s


If the probability that it will snow on Monday is 8/9 and the probability that it will snow on Tuesday is 3/16, find the
betto
probability that it does not snow either day.
saltres
Give the probability as a simplified fraction.

Answers

Answer:

1/6

Step-by-step explanation:

Probability that it does not snow either day is [tex]\frac{13}{144}[/tex]

What is probability?

"Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are."

We have

The Probability that it will snow on Monday is [tex]\frac{8}{9}[/tex]

The Probability that it will snow on Tuesday is [tex]\frac{3}{16}[/tex]

According to the question,

The probability that it does not snow on Monday = 1 - [tex]\frac{8}{9}[/tex] = [tex]\frac{1}{9}[/tex]

The probability that it does not snow on Tuesday = 1 - [tex]\frac{3}{16}[/tex] = [tex]\frac{13}{16}[/tex]

So, the probability that it does not snow either day

= [tex]\frac{1}{9}[/tex] ×[tex]\frac{13}{16}[/tex]

= [tex]\frac{13}{144}[/tex]

Hence, Probability that it does not snow either day is  [tex]\frac{13}{144}[/tex] .

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Are the graphs of y=3x-5 and 9x+3y=1 parallel, perpendicular or neither?

Answers

Answer:

The two lines are neither parallel nor perpendicular to one another.

Step-by-step explanation:

The slope [tex]m[/tex] gives the orientation of a line.

Make sure that the equation of both lines are in the slope-intercept form [tex]y = m\, x + b[/tex] (where [tex]m\![/tex] is the slope and [tex]b[/tex] is the [tex]y[/tex]-intercept) before comparing their slopes.

The equation of the first line [tex]y = 3\, x - 5[/tex] is already in the slope-intercept form. Compare this equation with the standard [tex]y = m\, x + b[/tex]. The slope of this line would be [tex]m = 3[/tex].

Rewrite the equation of the second line [tex]9\, x + 3\, y = 1[/tex] to obtain the slope-intercept equation of that line:

[tex]3\, y = -9\, x + 1[/tex].

[tex]\displaystyle y = -3\, x + \frac{1}{3}[/tex].

Thus, the slope of this line would be [tex]m = (-3)[/tex].

Two lines are parallel to one another if and only if their slopes are equal. In this question, [tex]3 \ne (-3)[/tex]. Thus, the two lines are not parallel to one another.

On the other hand, two lines are perpendicular to one another if and only if the product of their slopes is [tex](-1)[/tex]. In this question, [tex]3\times (-3) = (-9)[/tex], which is not [tex](-1)\![/tex]. Thus, these two lines are not perpendicular to one another, either.

Catherine graphed point p on the cortinet grid she will graph Q at the location that is 4 units left and 3 units up from point p :which ordered pair could represent the location of point Q F(-6,-1) G(-6,1). H (3,-2). J(2,1

Answers

Answer:

Any answer option is possible with the given information as we are not told where P is located.

Step-by-step explanation:

Here are the options:

IF P = (-2, -4) THEN Q = (-6, -1)

IF P = (-2, -2) THEN Q = (-6, 1)

IF P = (7, -5) THEN Q = (3, -2)

IF P = (6, -2) THEN Q = (2, 1)

Each Minitues has 60 seconds in it. How many second are in 3 minutes and 25 seconds

Answers

Answer:

205

Step-by-step explanation:

3×60 + 25 = 205

therefore 3 minutes and 25 seconds is 205 seconds


Write the equation (in factored form) given the following conditions:

vertical asymptotes x= 2, x = -17;

horizontal asymptote y = 6

Answers

x=2,x=-17

[tex]\\ \sf\longmapsto y=\dfrac{(x+2)}{(x+2)(x-17)}[/tex]

[tex]\\ \sf\longmapsto y=\dfrac{x+2}{x(x-17)+2(x-17)}[/tex]

[tex]\\ \sf\longmapsto y=\dfrac{x+2}{x^2-17x+2x-34}[/tex]

[tex]\\ \sf\longmapsto y=\dfrac{x+2}{x^2-15x-34}[/tex]

y=6

[tex]\\ \sf\longmapsto 6=\dfrac{x+2}{x^2-15x-34}[/tex]

[tex]\\ \sf\longmapsto 6(x^2-15x-34)-x-2=0[/tex]

[tex]\\ \sf\longmapsto 6x^2-90x-204-x-2=0[/tex]

[tex]\\ \sf\longmapsto 6x^2-91x-206=0[/tex]

Done

>> Answer

_________

[tex]\:[/tex]

Answer in the picture.

Given that m<2=3x - 11 and m<5 = 7x + 46 use the figure to answer question 1-3

Answers

Applying the relationship of angle pairs, THE VALUE OF X AND THE GIVEN ANGLE MEASURES ARE:

x = 14.5 (Blue)m<5 = 147.5 degrees (Yellow)m<4 = 32.5 degrees (Pink)

Given:

m<2 = 3x - 11

m<5 = 7x + 46

Thus, find x:

<2 and <5 are same-side interior angles

Therefore:

m<2 + m<5 = 180 degrees (supplementary)

Substitute

[tex]3x - 11 + 7x + 46 = 180\\[/tex]

Collect like terms

[tex]10x +35 = 180\\\\10x = 180 - 35\\\\10x = 145\\\\\mathbf{x = 14.5}[/tex](Blue)

Find m<5:

Plug in the value of x into 7x + 46

[tex]m \angle 5 = 7(14.5) + 46\\\\\mathbf{m \angle 5 = 147.5^{\circ}}[/tex](Yellow)

Find <4:

m<4 = m<2 (vertical angles are congruent)

Substitute

m<4 = 3x - 11

Plug in the value of x

m<4 = 3(14.5) - 11

m<4 = 32.5 degrees (Pink)

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pls help i really need a math professional im struggling.​

Answers

Answer:

20

Step-by-step explanation:

16/x = 80/100

16/x because 16 is your part and you are trying to find your whole (x)

80 is your part and 100 is your whole (this is from percent)

Cross multiply:

1600 = 80x

1600/80 = x

x = 20

Step-by-step explanation:

16×100÷80

=20

THE TOTAL IS 20

Natalie is making a scrapbook. She has 12 stickers and she still needs to make 4 more pages. She wants each page to have the same number of stickers. Which expression can be used to find how many stickers Natalie should include on each page? A) 12 - 4 B) 12 + 4 12 = 4 D) 12 x 4 2) ​

Answers

Answer:

D

Step-by-step explanation:

The true answer is 12 divided by four bu the closest I can see is the last one

what is the volume of a figure with that is 10 inches wide, 3 inches tall and 5 inches long?

Answers

what the holligram

i dont know

i need help with the sudoku

Answers

Answer:

see picture

Step-by-step explanation:

Find the perimeter and area of the following parallelogram.

Answers

Answer:

hope this helps

check the picture attached for steps

Guwani invested some money in a bank at rate of 6% per annum. At simple interest, after 9 years, she got Rs. 8470. How much did she invest? ​

Answers

Answer:

Rs.5500 is the correct answer .

Help help help help please thank you good luck

Answers

The answer is no I think…I don’t really know.

-8x + 40 > -16 i need help with this pls

Answers

Answer:

x<7

  -8x + 56  =   -8 • (x - 7)

Divide both sides by  -8

Add  7  to both sides

x<7

inverse the multiplier into its reciprocal fraction and proceed into multiplication of fractions. 1 1 1 4 8 Soluuon: 1 3 1 1 3 1 9 Solution​

Answers

Answer:

Step-by-step explanation:

To complete the steps to demonstrate why you multiply by the reciprocal when dividing fractions.

To find

Step 1:

Rewrite it as

.

Step 2:

Multiply the numerator and the denominator by the reciprocal of

.

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