You need a 75 % alcohol solution. On hand, you have a 260 mL of a 30% alcohol mixture. You also have 95 % alcohol mixture . How much of the 95% mixture will you need to add to obtain the desired solution? You will need mL of the 95% solution
Answers
[tex]30 \: percent \: alcohol \: in \: 260 \: ml \\ alcohol = 0.3 \times 26 0= 78 \: ml[/tex]
[tex]c( \gamma ) = \frac{78 + 0.95\gamma }{260 + \gamma } \times 100[/tex]
[tex]c( \gamma ) = 75[/tex]
[tex] \frac{78 + 0.95\gamma }{260 + \gamma } = 0.75[/tex]
[tex]78 + 0.95\gamma = 0.75 \gamma + 195 \\ 0.2 \gamma = 117 \\ \gamma = 585[/tex]
[tex]we \: need \: 585 \: ml \: of \: 95% \: alcohol[/tex]
Answer:
You will need 585 mL of the 95% solution.
Step-by-step explanation:
Related Questions
A man can take a same time to row 13km downstream and 7km upstream.His speed in still water is 5km/hr.The speed of stream is
Answers
Answer:
0.6 km/hr
Step-by-step explanation:
Speed downstream: 13/5= 2.6 km/hr
Speed upstream: 7/5= 1.4 km/hr
Therefore, Velocity of current is: 1/2 (2.6-1.4) km/hr = 1/2(1.2) km/hr
Will mark brainliest
Answers
The plot of [tex]\sqrt{25-x^2}[/tex] is that of the top half of a circle with radius 5. The interval [-5, 0] captures the left half of this semicircle.
Adding 5 to this shifts the plot up by 5 units. The area under this curve is then the combined area of a square with side length 5 and the area of a quarter circle with radius 5.
So we have
[tex]\displaystyle \int_{-5}^0 5 + \sqrt{25-x^2} \, dx = 5^2 + \frac\pi4\cdot5^2 = \boxed{25 + \frac{25\pi}4}[/tex]
If the r-value, or correlation coefficient, of a data set is 0.854, what is the
coefficient of determination to three decimal places?
A. 0.829
• B. 0.754
• C. 0.729
D. 0.854
Answers
Coefficient of determination(r²), is defined as, how well the data values are associated with each other when Regression line is drawn. In regression analysis, the coefficient of determination measures , how well the regression predictions approximate the real data points, means it measures the closeness between two variables.The Value of r², lies between 0 to 1. If value of r²=1, it shows ,regression line that is data values are Perfectly associated with each other.
If ,r²=0, it means there is no variation between two variables.There is 0% variation between two variables.
→Coefficient of Variation=[Correlation coefficient]²
=r²
=(0.854)²
=0.854 × 0.854
=0.729316
=0.730(Approx)
can I return notebooks to target?
Answers
Answer: yes, as long as you haven't used them. :)
Step-by-step explanation:
|m² + n²|
When m = -5and n
=
3, the value of the expression is
Answers
Answer:
34
Step-by-step explanation:
You want the value of |m² +n²| for m = -5 and n = 3.
EvaluationPut the values where the variables are in the expression and do the arithmetic.
|m² +n²| = |(-5)² +3²| = |25 +9| = |34| = 34
The value of the expression is 34.
__
Additional comment
Here, the absolute value bars don't do anything, because the value between them is positive. If it were negative, they would remove the minus sign.
<95141404393>
Nereo and Azeneth start recording video at the same time. Nereo's phone starts with 1,000 megabytes
(MB) of free space and uses 7 MB of space per second of video.
Azeneth's phone has 1,255 MB of free space and uses 10 MB of space per second of video.
How much free space will they have when they first have the same amount of space left?
Answers
Nereo: y = -7x + 1000
Azeneth: y = -10x + 1255
Set equal and solve
-7x + 1000 = -10x + 1255
3x + 1000 = 1255
3x = 255
x = 85 seconds
Plug back in to find space left
-7(85) + 1000 = -10(85) + 1255
-595 + 1000 = -850 + 1255
405 = 405 MB
A spinner is labeled with the numbers 1,2,3,4,5,6,7,8, & 9.
Calculate the:
a. odds of spinning a 3
b. odds of not spinning a 9
c. odds of spinning an even number
d. odds of spinning a number less than 6
Answers
Answer:
Step-by-step explanation:
d
Find the surface area of the composite figure 4 cm 13 cm 3 cm 4 cm 12 cm SA = [?] cm² 5 cm 3 cm.
Answers
12x4=48
side of rectangle ( 2 of them)
4x3x2=24
length of rectangle (2 of them)
12x3x2=72
area of triangle facing us ( 2 of them)
1/2x5x12x2= 60
top part of triangle
13x4= 52
back part of triangle :
4x5=20
total = add them all together
= 276
3. Complete the table (showing work) and draw a graph of the logarithmic function f(x) = log 1/5 x
Answers
Answer:
Step-by-step explanation:
Evaluate f(x)=−4ex−2−4 for x=4. round to the nearest 4 decimal
Answers
Answer:
25.2
Step-by-step explanation:
I'll assume you wrote:
[tex]f(x) = 4e^{x-2} - 4[/tex]
So when x = 4:
[tex]4e^{4-2} - 4 = 4e^2 - 4[/tex] ≅ [tex]4\cdot 7.3 - 4 = 25.2[/tex]
You draw a rectangular picture that is 8 inches wind.It is 3 times as long as it is wind what is the area of the picture
Answers
Answer:
[tex]512 ^{2} [/tex]
the area of the picture
Complete the table of inputs and outputs for the function.
f(x) = -5(x + 7)
X
-9
01
0
f(x)
0
-60
Answers
Answer:
10, -7, -35, 5
Step-by-step explanation:
f(9) = -5(-9 + 7) = 10
0 = -5(x + 7)
0 = x + 7
x = -7
f(0) = -5(0 + 7) = -35
-60 = -5(x + 7)
12 = x + 7
x = 5
What is the solution to the equation 4 + = 6? y = 1 y = 4 y = 500 y = 2000
Answers
Step-by-step explanation:
pls make did make sense, darling!!
Using the graph as your guide, complete the following statement.
The discriminant of the function is
Answers
Because the parabola intercepts the x-axis only once, we conclude that the discriminant is 0.
What can we say about the discriminant?
For a quadratic equation:
y = a*x^2 + b*x + c
The discriminant is:
D = b^2 - 4ac
If D = 0, there is only one real zero.If D > 0, there are two real zeros.If D < 0, there are two complex zeros.In the graph we can see that the parabola intercepts the x-axis in its vertex, then the parabola has only one real zero, then we conclude that the discriminant is equal to zero.
If you want to learn more about quadratic equations:
https://brainly.com/question/776122
#SPJ1
which of the following rational functions is graphed below?
Answers
Answer:
c
Step-by-step explanation:
Oblique Asymptotes
R(x) will have oblique asymptote if it can be represented in the form
1 / (Q)x
The Bourassas decide to sell a home for $440,000. They are charged a real estate commission of 8% of the selling price, title insurance that is 1.4% of the selling price, and an escrow fee of $775.
(a)
What amount (in dollars) do the Bourassas receive after fees?
$
(b)
What percentage of the selling price was fees? Round to the nearest tenth of a percent.
%
Answers
The amount received net of expenses is $397865 and the percentage of the sale price was 10%.
Given that Bourassas decides to sell a house for $ 440,000. You will be charged a real estate fee of 8% of the sale price, property insurance of 1.4% of the sale price, and an escrow fee of $ 775.
The declared retail price is $ 440,000.
Real estate commission = 8% of the sale price
Real Estate Fee = (8/100) × 440000
Real Estate Fee = 8 × 4400
Real Estate Fee = $ 35,200
Security insurance costs of the title = 1.4% of the sale price
Cost of title insurance = (1.4 / 100) × 440 000
Cost of title insurance = 1.4 × 4400
Title Insurance Cost = $ 6160
The escrow fee assigned is $ 775.
(a) In determining the amount received after deducting the sale price of the property commission, title insurance and escrow fees, we receive
Amount received after fees = sale price - real estate commission - title insurance - escrow fees
Amount received after fees = 440000-35200-6160-775
The amount received after fees = $397865
(b) To find the percentage of sale price, add together all the terms real estate commission, title insurance and escrow fees and divide by the sale price we get
Percentage of selling price=((35200+6160+775)/440000)×100
Percentage of sale price = (42135/440000) × 100
Percentage of sale price = 9.57
Percentage of sale price = 10% (rounded down)
Hence Bourassas decides to sell a house for $440,000, then the amount Bourassas will receive after expenses is $397,865 and the percentage of the sale price of expenses is 10%.
Learn more about selling price from here brainly.com/question/11067377
#SPJ1
Between which two integers is the value of √11?
9 and 10
5 and 6
7 and 8
O3 and 4
1 and 2
Answers
The square root of 11 is ?
The square root of 16 is 4
Between 3 and 4
A spinner is divided into five sections numbered 1 through 5. Juana records the number the spinner lands on for each of 50 spins. She computes and graphs the relative frequencies for each number. Which of the following describes the probability distribution?
A bar graph entitled Relative Frequency of Numbers Spun has x on the x-axis and Probability on the y-axis. The probability of 1 is 0.5; 2 is 0.12; 3 is 0.12; 4 is 0.12; 5 is 0.12.
constant
symmetric
negatively skewed
positively skewed
Answers
If the probability of 1 is 0.5; 2 is 0.12; 3 is 0.12; 4 is 0.12; 5 is 0.12 then the graph is somewhat positively skewed and then becomes constant.
Given the probability of 1 is 0.5; 2 is 0.12; 3 is 0.12; 4 is 0.12; 5 is 0.12.
We are required to find whether the graph is constant,symmetric ,negatively skewed or positively skewed.
We can say that the graph is somewhat positively skewed and then it becomes constant.
Positively skewed graph is a graph in which more values exist at the left side of the graph means the tail is started in end.
Constant graph is a graph in which all the values are equal to each other.
In our case except the probability of 1 all the values are 0.12 and the probability of 1 is 0.5.
Hence if the probability of 1 is 0.5; 2 is 0.12; 3 is 0.12; 4 is 0.12; 5 is 0.12 then the graph is somewhat positively skewed and then constant.
Learn more about skewness at https://brainly.com/question/24055593
#SPJ1
Answer:
constant
Step-by-step explanation:
In the parallelogram below,
y = [? ]°
2
Z
1240
33%
Answers
Answer:
y = 33
Step-by-step explanation:
Angle y and 33 are alternate interior angles since the figure is a parallelogram and alternate interior angles are equal
y = 33
Answer:
y = 33°
Step-by-step explanation:
The diagonal of the parallelogram (a transversal) intersects two opposite and parallel sides of the parallelogram
Then
The angles of measures y° and 33° are Alternate interior angles
Then
they are congruent.
In other words , y = 33°
Find the value of x
Answers
[tex] \qquad \qquad \bf \huge\star \: \: \large{ \underline{Answer} } \huge \: \: \star[/tex]
x = 12°[tex]\textsf{ \underline{\underline{Steps to solve the problem} }:}[/tex]
[tex]\qquad❖ \: \sf \:2x + 6 + 5x + 90 = 180[/tex]
[ by linear pair ]
[tex]\qquad❖ \: \sf \:7x + 6 = 180 - 90[/tex]
[tex]\qquad❖ \: \sf \:7x + 6 = 90[/tex]
[tex]\qquad❖ \: \sf \:7x = 90 - 6[/tex]
[tex]\qquad❖ \: \sf \:7x = 84[/tex]
[tex]\qquad❖ \: \sf \:x = 84 \div 7[/tex]
[tex]\qquad❖ \: \sf \:x = 12[/tex]
[tex] \qquad \large \sf {Conclusion} : [/tex]
[tex]\qquad❖ \: \sf \:x = 12 \degree[/tex]
Find the difference between 0.84 and 17.1. (a) Give your answer as a mixed number in its simplest form. (b) Divide your answer by 9 and give your answer correct to 2 decimal places.
Answers
Answer:
in case you don't understand feel free to ask bye.
Two triangles are similar. The sides of the first triangle are 4,5,and 6. The largest side of the second triangle is 24. Find the perimeter of the second triangle.
Answers
Answer:
The perimeter of the second triangle is 60 units.Step-by-step explanation:
If two triangles are similar, their corresponding sides will be k times greater or smaller, where k is the scale factor.
We have two corresponding sides given, 6 and 24 or 6k. Using this info, find the value of k:
k = 24/6 = 4The other sides of the larger triangle are:
4k = 4*4 = 165k = 5*4 = 20The perimeter is the sum of sides:
P = 16 + 20 + 24 = 60Line JM intersects line GK at point N.
Horizontal line G K intersects vertical line J M at point N, forming a right angle. A line extends from point N to L, down and to the right.
Which statements are true about the figure? Select two options.
Angle GNJ is complementary to Angle JNK.
Angle MNL is complementary to Angle KNL.
Angle MNG is complementary to Angle GNJ.
Angle KNJ is supplementary to Angle MNL.
Angle GNM is supplementary to Angle JNK.
Answers
The statements that are true are angle MNL is complementary to angle KNL and angle GNM is supplementary to angle JNK. Option B and E
How to determine the statements
Ray NL creates two angles in the lower right quadrant.
The two angles created form a total of 90°, so the two angles formed are complementary. The relation is given as;
∠MNL + ∠KNL = ∠MNK = 90°
Hence ∠MNL and ∠KNL are complementary
∠GNM and ∠JNK are both right angles (and also vertical angles). They sum up to180°. They can be said to be supplementary.
∠GNM and ∠JNK are supplementary
Thus, the statements that are true are angle MNL is complementary to angle KNL and angle GNM is supplementary to angle JNK
Learn more about supplementary angles here:
https://brainly.com/question/2046046
#SPJ1
solve this equations 3x+4x-8=6(x-3)+x
Answers
Answer:
no solutions
Step-by-step explanation:
Find the standard form of the equation whose graph is the line through (1, -2) and (-5, 6).
Answers
The standard form of the equation whose graph is the line through (1, -2) and (-5, 6) is 3y = -4x -2.
According to the question,
The standard form of the equation whose graph is the line through (1, -2) and (-5, 6). Now first to find slope of the equation using below formula,
Slope of the equation (m)= (change in y axis) / (change in x axis)
= (6- (-2))/(-5 - 1)
= 8/-6
=-(4/3)
Slope of the equation (m) = -4/3. whose graph is the line through (1, -2) and (-5, 6).Formula to find Standard form of the equation is y = mx + c.
-2 = -(4/3) 1 + c
c = -2 +(4/3)
c = -2/3
The standard form of the equation whose graph is the line through (1, -2) and (-5, 6) is 3y = -4x -2. y = -(4/3)x -(2/3).
⇒ 3y = -4x -2.
Hence, the standard form of the equation whose graph is the line through (1, -2) and (-5, 6) is 3y = -4x -2.
Learn more about standard form of the equation here
https://brainly.com/question/12576248
#SPJ1
In how many possible ways can this be accomplished if there are 25 members on the board of directors
Answers
Explanation:
There are 25 choices for president. Then we have 25-1 = 24 choices for the secretary, and 24-1 = 23 choices for treasurer. This countdown (25,24,23) is because any given person cannot serve in more than one position.
Multiply out those values: 25*24*23 = 13800
Side note: you could use the nPr permutation formula as an alternative path. Plug in n = 25 and r = 3.
if the diameter of a circular pond is x meter what is the measure of its circumference
Answers
πx
Step-by-step explanation:
well pi is defined as the ratio of a circle's circumference to its diameter so just πx
BRIANLY FOR THE BEST EXPLANATION AND ANSWER!
Question: A circle has an area of 16mm². Find it's circumference.
Answers
Answer:
C ≈ 14.18
Step-by-step explanation:
Question Given:
A circle has an area of 16mm². Find it's circumference.
Formula:
C = 2√πA
Solve:
C = 2√πA
C = 2√(3.14 × 16)
C = 2√50.24
C = 14.1760361173
C ≈ 14.18
Hence, Circumference is approximately 14.18.
~Kavinsky
[tex]{ \qquad\qquad\huge\underline{{\sf Answer}}} [/tex]
Here we go ~
Area of Circle :
[tex]\qquad \sf \dashrightarrow \: \pi {r}^{2} [/tex]
Now, it's given that area of circle is : 16 mm²
Let's calculate Radius ~
[tex]\qquad \sf \dashrightarrow \: \pi {r}^{2} = 16[/tex]
[tex] \qquad \sf \dashrightarrow \: {r}^{2} = \cfrac{16}{ \pi} [/tex]
[tex]\qquad \sf \dashrightarrow \: r = \sqrt{ \cfrac{16}{ \pi} } [/tex]
[tex]\qquad \sf \dashrightarrow \: r = { \cfrac{4}{ \sqrt{ \pi} } }[/tex]
Now,
[tex]\qquad \sf \dashrightarrow \: circumference = 2\pi r[/tex]
[tex]\qquad \sf \dashrightarrow \: c = 2 \pi \cfrac{4}{ \sqrt{ \pi} } [/tex]
[tex]\qquad \sf \dashrightarrow \: c = 8 \sqrt{ \pi} [/tex]
[ for approximate value take pi = 3.14 ]
[tex]\qquad \sf \dashrightarrow \: c = 8 \sqrt{3.14} [/tex]
[tex]\qquad \sf \dashrightarrow \: c \approx 8 \times 1.77[/tex]
[tex]\qquad \sf \dashrightarrow \: c \approx 14.18 \: \: mm[/tex]
please help, I have been on this question for a while. Lotta yummy PTS
Answers
Answer:
[tex]y=\left|\dfrac{1}{2}x-\dfrac{5}{2}\right|+3[/tex]
Step-by-step explanation:
Given equation:
[tex]y=\left|\dfrac{1}{2}x-2\right|+3[/tex]
Translation
[tex]f(x-a) \implies f(x) \: \textsf{translated}\:a\:\textsf{units right}[/tex]
When translating a graph to the right, subtract the number of units from the x variable.
Translating the given graph one unit to the right:
[tex]f(x-1) \implies y=\left|\dfrac{1}{2}(x-1)-2\right|+3[/tex]
Simplifying:
[tex]\implies y=\left|\dfrac{1}{2}(x-1)-2\right|+3[/tex]
[tex]\implies y=\left|\dfrac{1}{2}x-\dfrac{1}{2}-2\right|+3[/tex]
[tex]\implies y=\left|\dfrac{1}{2}x-\dfrac{5}{2}\right|+3[/tex]
Learn more about graph transformations here:
https://brainly.com/question/27975349
https://brainly.com/question/28041916
On November 1, the company rented space to another tenant. A check in the amount of $9,000, representing three months rent in advance, was received from tenant on that date. The payment was recorded with a credit to the
Answers
The adjusting entry to registering the Rent revenue shall be as pursues:
Unearned Rent Revenue Debit $6,000
Rent Revenue Credit $6,000
(being the adjustment made for Rent Revenue earned)
How to complete the necessary adjusting entry for December 31 by selecting the account names and dollar amounts?Adjusting entry to record the Rent Revenue are as follows:
It exists shown that on November 1, the company rented space to another tenant. A check in the amount of $9,000, symbolizing three months' rent in advance, stood obtained from the tenant on that date. The payment stood registered with a credit to the unearned rent revenue account.
Now on December 31, we must organize the adjusting access to record the Rent Revenue for the period (Nov. 1 to Dec. 31) which exists for two months. The Rent Revenue for two months shall be
9000 [tex]*[/tex] 2/3 = $6,000
Therefore the adjusting entry to registering the Rent revenue shall be as pursues:
Unearned Rent Revenue Debit $6,000
Rent Revenue Credit $6,000
(being the adjustment made for Rent Revenue earned)
To learn more about Rent Revenue refer to:
https://brainly.com/question/24040735
#SPJ9
The complete question is:
On November 1, the company rented space to another tenant. A check for $9,000, representing three months' rent in advance, was received from the tenant on that date. The payment was recorded with a credit to the unearned rent revenue account. Complete the necessary adjusting entry for December 31 by selecting the account names and dollar amounts from the drop-down menus.
