Answer:
I believe the answer to this question is: 100.
A nurse must mix a 20% solution of medication in an existing container of water. The container currently holds 12 ounces of water how many ounces of medication should the nurse add to make the proper solution?
Answer:
3 ounces of medication to be added to get 20%solution of medication
Step-by-step explanation:
To find:
The amount of medication to be added to 12 ounces of water to get a 20% solution
Let the amount of medication to be added =x
So total amount of mixture = amount of water + amount of medication
= 12+x
% medication = (amount of medication÷total amount of the mixture)× 100
Therefore
% medication =( x÷12+x)×100
20 =( x÷12+x)×100
[tex]20 =\frac{x}{12+x}[/tex] X 100
20(12+x) =100x
240+20x =100x
100x-20x =240
80x =240
x =240÷80
x=3
so 3 ounces of medication to be added to get 20%solution of medication
Determine whether a triangle with the given side lengths is a right triangle,
Side lengths
Right triangle
Not a right
triangle
Not enough
information
7, 24, 25
12, 16, 20
18. 32.40
4,7,8
To determine whether a triangle with given side lengths is a right triangle, we can use the Pythagorean theorem. If the sum of the squares of the two shorter sides equals the square of the longest side, then the triangle is a right triangle.
Explanation:To determine whether a triangle with given side lengths is a right triangle, we can use the Pythagorean theorem. According to the theorem, if the sum of the squares of the two shorter sides equals the square of the longest side (hypotenuse), then the triangle is a right triangle.
For the side lengths 7, 24, 25, we have 7² + 24² = 49 + 576 = 625, which is equal to 25². Therefore, this triangle is a right triangle.For the side lengths 12, 16, 20, we have 12² + 16² = 144 + 256 = 400, which is not equal to 20². Therefore, this triangle is not a right triangle.For the side lengths 18, 32, 40, we have 18² + 32² = 324 + 1024 = 1348, which is not equal to 40². Therefore, this triangle is not a right triangle.For the side lengths 4, 7, 8, we have 4² + 7² = 16 + 49 = 65, which is not equal to 8². Therefore, this triangle is not a right triangle.-* + 10.8 is: irrational or rational
Answer:
RATIONAL
Step-by-step explanation:
Irrational Numbers. All numbers that are not rational are considered irrational. An irrational number can be written as a decimal, but not as a fraction. An irrational number has endless non-repeating digits to the right of the decimal point
Answer:
irrational
Step-by-step explanation:
Is y=3/4x-7 a linear or nonlinear function
Answer: Yes
Step-by-step explanation:
id strongly prefer using the app? website desmos. it will help a lot.
guy is pouring a new patio for his house.
He rents a concrete mixer for $50 per day plus $12.50 per hour. If he is charged $143.75, how long did guy have the concrete mixer?
Answer:
Step-by-step explanation:
50 + 12.50h = 143.75....where h = # of hrs
12.50h = 143.75 - 50
12.50h = 93.75
h = 93.75 / 12.50
h = 7.5 (or 7 1/2) hrs <====
the velocity v of an object rolled down an inclined plane is given by the formula v equals 26d square-rooted, where d is the distance the object has rolled. solve for d
Answer: d = v/26
Step-by-step explanation:
Your computer server recently crashed and you need to make changes to a large manual. The manual contains approximately 16,000 words. A clerk types 4,160 words in one hour and 20 minutes. The salary and benefits for the clerk cost the firm approximately $17.65/hour. How much will recreating the manual cost the firm?
Answer:
The manual cost that will take to recreate by the firm is $ 90.51
Step-by-step explanation:
Given:
Number of words the manual contains= 16000
Number of words typed by a clerk in one hour and 20 minutes = 4160
To Find:
The total cost for recreating the manual = ?
Solution:
Step 1: Finding the Number of hours is need to type 4160 words :
= [tex]1\frac{20}{60}[/tex] hours
[tex]\\\\=1\frac{1}{3}[/tex] hours
[tex]\\\\=\frac{4}{3}[/tex] hours
So it takes [tex]\frac{4}{3}[/tex] hours to type 4160 word
Step 2 : Finding the Number of hours is needed to type 1 word
= [tex]\frac{4160}{\frac{4}{3}}[/tex]
=[tex]4160 \times \frac{3}{4}[/tex]
= 3120 words per hour
Step 3 : Finding the Number of hours is needed to type 16000 words
=[tex]\frac{\text{ total number of words}} {\text{ number of words written per hour}}[/tex]
Substituting the values
= [tex]\frac{16000}{3120}[/tex]
= 5.1282 hours
Step 4 : Finding the cost for recreating the manual.
= number of hours x cost per hour
= 5.1282 x $17.65
= 90.51
Recreating the manual will cost the firm approximately $90.59.
To determine the cost of recreating the manual, we need to calculate both the time it will take for the clerk to type the entire manual and the total cost based on the clerk's wage.
First, we calculate the time required to type the manual. The clerk types 4,160 words in 1 hour and 20 minutes. To find out how many minutes that is, we convert 1 hour to minutes:
1 hour = 60 minutes
Therefore, 1 hour and 20 minutes is:
60 minutes + 20 minutes = 80 minutes
Now, we need to find out how many 80-minute blocks are required to type 16,000 words. We set up a proportion:
4,160 words / 80 minutes = 16,000 words / x minutes
Solving for x gives us:
x = (16,000 words x 80 minutes) / 4,160 words
x = (16 x 80) / 4.16
x = 1,280 / 4.16
x ≈ 308 minutes
Next, we convert the total time from minutes to hours since the clerk is paid by the hour:
308 minutes / 60 minutes per hour ≈ 5.13 hours
Now, we calculate the total cost by multiplying the total hours by the clerk's hourly wage, including benefits:
Total cost = 5.13 hours x $17.65/hour
Total cost ≈ $90.59
Therefore, recreating the manual will cost the firm approximately $90.59.
is there any smart people here who ACTUALLY answer questions? everytime i ask questions, people just ignore them, or troll me. its so annoying. im asking to find at leat ONE person that can do stuff. anyone???????
Answer:
I will answer any question you ask me! You can call me by my nickname- Dark. If you have any questions, just ask me!
Step-by-step explanation:
Answer: At your service. I don't troll. I think it's pointless to troll because people on brainly are here for HELP not for Jokes.
Find the slope and the equation for the line passing through the point (−5,−0.75)(−5,−0.75) with x-intercept at x=−6
Answer:
Slope is -0.75
Step-by-step explanation:
When calculating slope you can use the formula [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1} }[/tex] to find the slope. In this case that formula is using the 2 points (-5, -0.75) and (-6, 0). When those points are put in the equation becomes [tex]\frac{0+0.75}{-6+5}=\frac{0.75}{-1}=-0.75[/tex]. This means that the slope is -0.75.
Give me 10 cash amounts that total up to 16,100.00.
Answer:
Ten amounts:
$ 13,979 $1,000 $100 $2 $10 $300 $4 $5 $200 $500
Step-by-step explanation:
Choose any numbers you want for the first 9 cash amounts. Then, find out the difference between the 9 cash amounts and 16,100. That will be the tenth amount.
Example:
I choose $1,000 $100 $2 $10 $300 $4 $5 $200 $500.
If I add them together, I get $2,121.
Remember that was 9 amounts, and we need 10.
To get the last amount, subtract what you have ($2,121) from what you need ($16,100).
16,100 - 2,121 = $13,979
The last amount will be $13,979.
Check your answer:
Add all of the ten amounts to get 16,100.
1,000 + 100 + 2 + 10 + 300 + 4 + 5 + 200 + 500 + 13,979
= 16,100
Therefore this answer is correct.
The sum of 2 consecutive odd integers is 92. Find the numbers.
If x represents the smaller integer, then the larger integer is
Answer: If x is odd then x + 2 is going to be the next odd integer
Step-by-step explanation:
Set up the equation and solve.
x + x + 2 = 92 This is the equation. Collect like terms.
2x + 2 = 92 Subtract 2
2x = 90 divide by 2
x =45
x + 2 = 47
45 + 47 = 92.
So x + 2 is the next odd number after x.
Answer:
x + 2
Step-by-step explanation:
Leo invests $2,000 at an interest rate of 4%, compounded quarterly, and another $2,000 at an interest rate of 3.75%, compounded annually. How much are the investments worth in total at the end of 3 years?
Investments worth $4487.19 in total at the end of 3 years.
Solution:
Principal, P = 2000
Rate, R = 4% compounded quarterly
Rate, R = 3.75% compounded annually
Year, n = 3
Formula for compound interest when compounded quarterly:
[tex]Amount=P(1+\frac{\frac{R}{4} }{100})^{4n}[/tex]
Substitute P = 2000, R = 4% and n = 3
[tex]Amount=2000\times(1+\frac{\frac{4}{4}}{100})^{4\times3}[/tex]
[tex]=2000\times(1+\frac{1}{100})^{12}[/tex]
[tex]=2000\times(\frac{100+1}{100})^{12}[/tex]
[tex]=2000\times(\frac{101}{100})^{12}[/tex]
= 2253.65
Amount when compound interest calculated quarterly is 2253.65.
Formula for compound interest when compounded annually:
[tex]Amount=P(1+\frac{R}{100})^{n}[/tex]
Substitute P = 2000, R = 3.75% and n = 3
[tex]Amount=2000\times(1+\frac{3.75}{100})^{3}[/tex]
[tex]=2000\times(\frac{100+3.75}{100})^{3}[/tex]
[tex]=2000\times(\frac{103.75}{100})^{3}[/tex]
= 2233.54
Amount when compound interest calculated annually is 2233.54.
Total amount = 2253.65 + 2233.54
= 4487.19
Hence, investments worth $4487.19 in total at the end of 3 years.
AB is parallel to CD.
AB = BC∠ BCD = 20°.
Work out x explaining each stage of your working in the comment box.
DIAGRAM IS NOT TO SCALE
Answer:
Step-by-step explanation:
∠ABC = ∠BCD { AB // CD; BC TRAVERSAL, alternate angles are equal}
∠ABC = 20
∠BCA = ∠BAC {angles opposite to equal sides are equal}
∠BCA = ∠BAC = x
x + x + 20 = 180
2x = 180 - 20
2x = 160
x = 160/2
x = 80
The lines AB and CD are said to be parallel and thus, corresponding angles ∠CB and ∠BD, are equal in value. Hence the value of x is calculated by subtracting the value of known angle ∠BCD (20°) from the total sum of interior angles of a straight line (180°), obtaining a result of 160°.
Explanation:In this given geometry problem, the lines AB and CD are parallel to each other and BC∠BCD = 20°. Since AB is parallel to CD, then the angles ∠CB and ∠BD, being corresponding angles, are equal. Hence, ∠CB also equals 20°.
Now, since ∠BCD and ∠CB make a straight line, the sum of their interior angles is equal to 180°. So, if we subtract the known 20° from 180°, we can find the value of unknown angle ∠BCD. Hence, x = 180° - 20° = 160°.
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how many solutions does the system of equations have y-6x=-3 and 4y-24x=-16
Answer:
0 - no solutionStep-by-step explanation:
[tex]\left\{\begin{array}{ccc}y-6x=-3\\4y-24x=-16\end{array}\right\\\\\text{Divide both sides of the second equation by 4}\\\\\dfrac{4y}{4}-\dfrac{24x}{4}=\dfrac{-16}{4}\\\\y-6x=-4\\\\\text{We have received equations in which the left sides}\\\text{are the same and the right sides are different.}\\\\\bold{CONCLUSION}\\\\\text{The system of equations has no solution.}[/tex]
[tex]\left\{\begin{array}{ccc}a_1x+b_1y=c_1\\a_2x+b_2x=c_2\end{array}\right\\\\\text{If}\ a_1=a_2,\ b_2=b_2,\ c_1=c_2,\ \text{then the system of equations}\\\text{ has infinitely many solutions}\\\\\text{If}\ a_1=a_2,\ b_1=b_2,\ c_1\neq c_2,\ \text{then the system of equations}\\\text{has no solutions}\\\\\text{Other the system of equations has one solution.}[/tex]
What is 15.06 rounded to the nearest tenth?
15.0
15.1
15.6
16.1
Answer:
15.1
Step-by-step explanation:
Answer:
15.1
Step-by-step explanation:
Since the digit in hundredths place is greater than 5, hence after removing the digit 6 we will add 1 in the tenth place. So the answer will become 15.1
????????????????????????
Answer:
Step-by-step explanation:
P(7) = No.of possibilities for getting 7/Total outcomes
=1/8
Answer:
1/8
Step-by-step explanation:
there is 8 "slices" and 1 7
You're trying to enlarge an image that is 4 centimeters tall and 10 centimeters wide onto a billboard that is 3 meters tall and 8 meters wide.
What is the height scale?
Answer: Its pretty basic
Step-by-step explanation:
Compare 4 centimeters to 300 centimeters.
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers. Find the GCF of the given polynomial. 8x6y5 - 3x8y3
Answer:
I guess the answer is 168yx.
Answer:
x^6 y^3 8x^6 y^5
Tully ran 7\10 mile and Maggie ran 3\5 mile who ran farther explain
Answer:
Tully ran farther
Step-by-step explanation:
tully maggie
7/10 | 3/5
find the LCD. the LCD is 10.
7/10 | 3x2/5x2
7/10 | 6/10
What is the probability that she draws a card less than 5
Answer:
Number of favourable outcomes i.e. ‘a card of diamond’ is 13 out of 52 cards. Therefore, probability of getting ‘a card of diamond’ Number of favorable outcomes P(D) = Total number of possible outcome = 13/52 = 1/4 (v) a king or a queen. Total number of king is 4 out of 52 cards. Total number of queen is 4 out of 52 cards
Step-by-step explanation:
Answer:
4/13
Step-by-step explanation:
16/52 = 4/13
Graph the system of equations to determine the solution. In your final answer, include your graph and the solution.
x = y + 4
y = x - 4
Answer:
Infinitely many solution.
Step-by-step explanation:
The given system is
x = y + 4
y = x - 4
To graph the first equation, we write it in slope-intercept form to get: to
x=y+4
This implies y=x-4.
This has a slope of 1 and a y-intercept of -4.
The graph of this function is shown in the attachment.
The second equation is y=x-4.
This equation is identical to first equation, so its graph coincides with the first one.
The system has infinitely many solution.
The system of equations has infinitely many solutions.
The system of equations:
1. [tex]\( x = y + 4 \)[/tex]
2. [tex]\( y = x - 4 \)[/tex]
can be rearranged to show that they represent the same line:
1. [tex]\( y = x - 4 \)[/tex] (Rearranged from [tex]\( x = y + 4 \)[/tex])
2. [tex]\( y = x - 4 \)[/tex]
Graphing these equations shows that they are the same line, meaning every point on the line [tex]\( y = x - 4 \)[/tex] is a solution to the system.
Thus, the solution to the system of equations is all points [tex]\((x, y)\)[/tex] that satisfy [tex]\( y = x - 4 \)[/tex]. This means the lines intersect everywhere along [tex]\( y = x - 4 \)[/tex].
There is no single intersection point because they overlap completely.
The following stem and leaf plot shows the number of students at the local recreational center each day at 4 PM.
Which data set is represented by this plot?
Answer:
Hence the correct option is the fourth option.
Step-by-step explanation:
i) the data represented in the 10's is given by 16
ii) the data represented in the 20's is given by 22, 22, 25, 26
iii) the data represented in the 30's is given by 34, 35, 39
iv) the data represented in the 40's is given by 42, 42
v) the data represented in the 50's is given by 50
vi ) the data represented in the 60's is none
vii) the data represented in the 70's is given by 71
Therefore the data set is 16, 22, 22, 25, 26, 34, 35, 39, 42, 42, 50, 71 which is the answer in the fourth option.
Hence the correct option is the fourth option.
Write as an equation: The product of 4 and s is 25
• A. 4+ s= 25
• B.4 x 25 = s
• C.4+ 25 = s
• D.4 x s= 25
BRAINLIEST AND 50 PTS HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Damian rides his bike 38 miles each week for 15 weeks.
How many total miles does he ride in 15 weeks?
Enter your answer in the box.
____ miles
Answer:
570 miles in 15 weeks
Step-by-step explanation:
trust me
Answer:
570
Step-by-step explanation:
because 38 miles x 15 weeks is 570 miles
What is the constant of proportionality in the equation y = 3x?
constant of proportionality
Answer:
Step-by-step explanation:
y = mx + b
in this form, the constant of proportionality is also known as the slope....and it can be found in the m position
y = 3x.....is actually y = 3x + 0....so the slope (constant of proportionality is gonna be 3
Answer:
the constant proportionality it gonna be 3
Step-by-step explanation:
the starting equation is y=mx+b
plug in the numbers and get your answer
my photo math said it is x = 0 lol
Gretchen made a paper cone to hold a gift for a friend. The paper cone was 16 inches high and had a radius of 4 inches. Find the volume of the paper cone to the nearest tenth. Use 3.14 for π.
Answer:
268.0 in²
Step-by-step explanation:
refer to attached graphic as reference
volume of cone, V = (1/3) πr²h
in our case, we are given r = 4" and h = 16"
substituting this into equation:
V = (1/3) πr²h
= (1/3) ·(3.14) · (4)²· (16)
= 267.94667 in²
= 268.0 in² (nearest tenth)
The volume of the paper cone to the nearest tenth = 268.0 in².
Volume of coneVolume of cone, V = (1/3) πr²h
Where, h= height of the cone
r = radius of the cone
V= volume of the cone
In our case, we are given r = 4" and h = 16"
substituting this into the equation:
V = (1/3) πr²h
Substitute into the formula we have
The value of π = 3.14
V = (1/3) ·(3.14) · (4)²· (16)
= 267.94667 in²
= 268.0 in² (nearest tenth)
Therefore, the volume of the cone = 268.0 in² (nearest tenth)
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Dimensions of a rectangle whose length is 8 more than twice it’s width and has a perimeter of 40 cm.
Answer:
Width = 4 cm
Length = 16 cm
Step-by-step explanation:
We are given;
Perimeter = 40 cm Assuming the width is x Then, length is 2x + 8 ( 8 more than twice the width)We are required to determine the dimensions of the rectangle;
We need to know that the perimeter of the rectangle is given by;Perimeter = 2 (length + width)In this case;
2 ( 2x + 8 + x) = 40
2 ( 3x + 8 ) = 40
6x + 16 = 40
6x = 24
x = 4
Thus; the dimensions of the rectangle are;
Width = 4 cm, and
Length = 16 cm
Write the point-slope form of the equation of the line that passes through the point (-1, 5) and has a slope of -1. Include your work in your final answer. Type your answer in the box provided to submit your solution.
Answer:
Step-by-step explanation:
y - y1 = m(x - x1)
slope(m) = -1
(-1,5)....x1 = -1 and y1 = 5
now we sub
y - 5 = -1(x - (-1)...not done yet...we can simplify this
y - 5 = -1(x + 1) <===
The solution is y = -x + 4
The equation of the line is y = -x + 4 and the slope of the line is m = -1
What is an Equation of a line?The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the equation of line be represented as A
Now , the value of A is
Let the point be represented as P = P ( -1 , 5 )
Now , the slope of the line is
Slope m = -1
The equation of line is y - y₁ = m ( x - x₁ )
Substituting the values in the equation , we get
y - 5 = -1 ( x - ( -1 ) )
On simplifying the equation , we get
y - 5 = -1 ( x + 1 )
y - 5 = -x - 1
Adding 5 on both sides of the equation , we get
y = -x + 4
Therefore , the value of A is y = -x + 4
Hence , the equation of line is y = -x + 4
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The diameter of a circle is 16 yards. What is the circle's area?
Use 3.14 for .
Answer: 200.96 yd²
Step-by-step explanation: To find the area of a circle, start with the formula for the area of a circle.
[tex]Area = \pi r^{2}[/tex]
Notice that here, we're given the diameter instead of the radius. Remember that the radius is equal to half of the diameter so the radius of this circle will be equal to half of 16 yards or 8 yards.
So plugging into the formula, we have (π)(8 yd)².
A common mistake is to plug 16 yards into the formula but remember that we must plug in the radius and not the diameter.
Multiplying, (8 yd)² is equal to 8 yards × 8 yards or 64 yards².
So we have 64π yd².
So the area of the circle is 64π yd².
Now, remember that the irrational number π is approximately equal to 22/7 or 3.14 so we can estimate the area of the circle by plugging in 3.14 for π.
So we have (64)(3.14) which is equal to 200.96.
So the area of the circle is approximately equal to 200.96 yd².
Final answer:
The area of a circle with a diameter of 16 yards is 200.96 square yards, calculated using the formula A = πr², with π approximated as 3.14.
Explanation:
To calculate the area of a circle with a diameter of 16 yards, we first determine its radius, which is half the diameter. The radius (r) would therefore be 8 yards. We use the formula for the area of a circle, which is A = πr². Since we're using 3.14 for π, we plug in the radius to get the area:
A = 3.14 × (8 yd)²
A = 3.14 × 64 yd²
A = 200.96 yd²
Therefore, the area of the circle is 200.96 square yards.
Dons class rents a bus for $168. They want to take the bus to the theater. What is the total cost of the bus rental and theater tickets? Make sense, Model, and Generalize.
To find the total cost for Don's class trip, including the bus rental and theater tickets, the cost and number of tickets are required. Currently, with only the bus rental cost known at $168, we can't calculate the final total cost.
Explanation:To solve the problem of determining the total cost of the bus rental and theater tickets for Don's class, we first identify the information given and what is required. We know the cost of the bus rental, which is $168. However, the question does not specify the cost of theater tickets. Therefore, to get the total cost, we would need the number of theater tickets needed and the price per ticket. Once these details are provided, the total cost can be calculated using the formula:
Total Cost = Cost of Bus Rental + (Number of Theater Tickets × Cost per Theater Ticket)
Without the cost and quantity of theater tickets, we can only provide the initial part of the answer, which is the cost of the bus rental.