Answer:
3
Step-by-step explanation:
6x (horizontal totals) + 12 x(vertical totals) = 54
18x = 54
x = 3
HOPE THIS HELPS!!!
please answer 50 points
Answer:
x=2
Step-by-step explanation: 1.2x-5.2=-2.4x+2. First, you add 2.4x to 1.2x to get x isolated. So now it's 3.6x-5.2=2. Then add 5.2 to 2 to isolate x. Now you have 3.6x=7.2 now you divide 7.2 by 3.6 to get x=2.
Answer:
x=2
Step-by-step explanation:
1.2x-5.2=-2.4x+2
multiply 10
12x-52=-24x+20
refine and add 52
12x=-24x+72
add 24x
36x=72
divide 36
x=2
The admission fee at an amusement park is $1.25 for children and $6.60 for adults. On a certain day, 342 people entered the park, and the admission fees collected totaled $1337. How many children and how many adults were admitted
Let's imagine all the tickets were for children.
The fees collected would've been 342 x 1.25 = $427.5
That is 1337 - 427.5 = $909.5 less than the actual fees.
Everytime we switch 1 children ticket to an adult ticket, the gap goes down 6.60 - 1.25 = 5.35
For example, if 341 tickets were children tickets, and 1 is adult, the gap go from 909.5 to 904.15.
We do this until the gap becomes 0... So, there are 909.5 : 5.35 = 170 adult tickets
And there are 342 - 170 = 172 children tickets
Recheck : 172 x 1.25 + 170 x 6.6 = 215 + 1122 = 1337.
PLSSS HELPP
Reject the object over the y-axis
Answer:
I couldn't find a graph with the shape, so I had to use points, sorry.
To reflect a shape, reverse its direction up or down and put it on the same points, positive or negative, accordingly. Reflections usually represent a function.
Basically the shape reflected over the y-axisWhich of the following are valid names for the given triangle? Check all that apply:
Answer:
A, C, E
Step-by-step explanation:
Only letters T, A, and X on the triangle can be used to describe it, regardless of the order they are in.
Simplify the following expression:
Answer:
[tex]\boxed{-3\left(\sqrt{2}-1\right)}[/tex]
Step-by-step explanation:
[tex]\left(3\sqrt{3-2\sqrt{2}}\right)\left(\sqrt{3}-2\right)\left(\sqrt{3}+2\right)[/tex]
[tex]-3\sqrt{3-2\sqrt{2}}\left(-1\right)[/tex]
[tex]-3\sqrt{3-2\sqrt{2}}[/tex]
[tex]-3\left(\sqrt{2}-1\right)[/tex]
[tex]-3\left(\sqrt{2}-1\right)[/tex]
Answer:
Step-by-step explanation:
[tex](a + b)(a -b) = a^{2}-b^{2}\\\\\\a = \sqrt{3} \ & \ b = 2\\\\(\sqrt{3}-2)(\sqrt{3}+2)=(\sqrt{3})^{2}-2^{2} \\\\ = 3 - 4\\\\= -1[/tex]
[tex](3\sqrt{3-2\sqrt{2}})(\sqrt{3}-2)(\sqrt{3}+2)=(3\sqrt{3-2\sqrt{2}})*(-1)\\ \ = (-3)\sqrt{3-2\sqrt{2}}[/tex]
Is this right? Thank you
Answer:
Yes. This is correct.
Step-by-step explanation:
We can use an online graphing program and we see that your equation is correct! Good job!
One mile per hour equals how many feet per second? Assume there are 5280 feet in a
mile.
Answer:
Roughly 1.46 repeating
Step-by-step explanation:
Substitute the 5280 for the miles and there are 3600 seconds in an hour. divide 5280 by 3600 and it will give you a decimal.
(hurry show ur work) what is 8 6/8 ÷ 2 2/5 = ?
Answer:
175/48 or 3.64
Step-by-step explanation:
■ Refer to the attachment.
Hope it helps ⚜
Answer:
27
Step-by-step explanation:
the picture below is your work!
Simplify the exponents in the picture please
Answer:
First: 3x^25/y^12 z^7
Second: x^6 z^12/6
Step-by-step explanation:
Answer:
see image
Step-by-step explanation:
If 5 is added to twice a number, the result is 29. Find the number.
Pls help me 20 POINTS
Answer:
Step-by-step explanation:
1) (y - 1)²
1. y*y =y²
2. 2(y)(-1)= -2y
3 . (1)(1) = 1
(y-1)² = y² - 2y + 1
2) (6y + 3)²
1. (6y)(6y) = 36y²
2. (2)(6y)(3)=36y
3. (3)(3) = 9
(6y + 3)² = 36y² + 36y + 9
3) (4x - y)²
1. (4x)(4x) = 16x²
2. (2)(4x)(-y) = -8xy
3. (y)(y) = y²
(4x -y)² = 16x² - 8xy + y²
4) (y - 12)²
1.(y)(y) = y²
2. (2)(y)(-12) = -24y
3. (12)(12) = 144
(y - 12)² = y² - 24y + 144
[tex](x + \dfrac{1}{3})^{2}\\\\ 1. (x)(x) =x^{2}\\\\ 2. (2)(x)(\dfrac{1}{3})=\dfrac{2}{3}x\\\\\\ 3. (\dfrac{1}{3})(\dfrac{1}{3})=\dfrac{1}{9}\\\\\\(x +\dfrac{1}{3})^{2}=x^{2}+\dfrac{2}{3}x+\dfrac{1}{9}[/tex]
6) (ab +c)²
1.(ab)(ab) = a²b²
2. (2)(ab)(c)=2abc
3. (c)(c)=c²
(ab+c)² = a²b² + 2abc + c²
Error Analysis A gardener plans to extend the length of a rectangular garden by 7 feet. Letx represent the garden's original length. The expression 9(x + 7) represents the area of the garden, where 9 is the width, in feet, and (x + 7) represents the extended length, in feet, of the garden When asked for the area of the extended portion, the gardener incorrectly said it was 16 square feet. Expand the expression to find the area of the extension.
Answer:
9(x+7)
Distribute the 9 by multiplying it to x and 7
9x+63
The area of the extension is 63.
The gardener added 9 and 7 instead of multiplying.
John can eat a melon 2 minutes faster than Sam can eat an identical melon. If they share one melon, they can eat it together in 2.4 minutes. How long does it take each of them to eat a melon?
Answer:
4 mins
Step-by-step explanation:
I guess not to sure ask teacher
Sam eats the melon in 0.2 minutes.
John eats the melon in 2.2 minutes.
What are the linear equations that represent this question?
x - y = 2 equation 1
x + y = 2.4 equation 2
Where:
x = minutes John eats the melon
y = minutes Sam eats the melon
How many minutes does John eat the melon?Add equation 1 and equation 2 together
2x = 4.4
Divide both sides by 2
x = 2.2
How many minutes does Sam eat the melon?
Substitute for x in equation 1
2.2 - y = 2
y = 2.2 2
y = 0.2 minutes
To learn more about simultaneous equations, please check: https://brainly.com/question/25875552
An employee makes an hourly rate plus any tips they earn. This tip employee made a total of $400 by working 28 hours last week. If $253 of their total earnings was their tips, what is their hourly rate of pay? a. $5. 25 b. $5. 61 c. $8. 82 d. $9. 4.
Subtract the tips from total earned:
400-253 = 147
Now Divide by hours worked:
147/28 = 5.25
Hourly rate is $5.25
Find the percentage error |sinθ - θ|/sin(θ)*100 this approximation introduces for an angle of 0. 020 radians.
Considering the given angle and the given formula, it is found that the percentage error for an angle of 0.02 radians is of 0.0067%.
What is the percentage angle for an angle?For an angle [tex]\theta[/tex], it is given by the following formula:
[tex]P = 100\frac{|\sin{\theta} - \theta|}{\sin{\theta}}[/tex]
In this problem, the angle is of [tex]\theta = 0.02[/tex], hence:
[tex]P = 100\frac{|\sin{0.02} - 0.02|}{\sin{0.02}}[/tex]
[tex]P = 0.0067[/tex]
The percentage error for an angle of 0.02 radians is of 0.0067%.
More can be learned about percent error at https://brainly.com/question/25224978
Calculate the length of the unknown side of this right-angled triangle.
9 cm
17 cm
Answer:
14.4 cm
Step-by-step explanation:
help with practice problem
answer in your own opinion
the quotient of 2 times a number and 19
Answer:
2n/19
Step-by-step explanation:
2 times a number, n= 2n
divided by 19 2n/19
find f(2) given f(x) = 2x^2 + 5x - 21
Answer:
f(2) = -3
Step-by-step explanation:
Find f(2) given f(x) = 2x^2 + 5x - 21
Since on the left side, x is replaced by 2, on the right side, x should also be replaced by 2.
f2 = 2(2)² + 5(2) - 21
2 x 2² = 2 x 4 = 8
5 x 2 = 10
8 + 10 = 18
18 - 21 = ?
-(21 - 18 = 3)
-21 + 18 = -3
f(2) = -3
HELP ASAP
A. 4 + 1/10 + 1/10 + 1/10
B. 4 + 1 + 2/10 - 1/10
C. 1/10 + 2/10 + 3 + 2/10
D. 5/10 + 5/10 + 3 + 2/10
Answer:
A. 4 + 1/10 + 1/10 + 1/10
Step-by-step explanation:
4 + 1/10 + 1/10 + 1/10 = 4 3/10
(PLS HELP)The diameter of a cylindrical water tank is 12 ft, and its height is 17 ft. What is the volume of the tank?
Use the value 3.14 for л, and round your answer to the nearest whole number. Be sure to include the correct unit in your answer.
Solution:
We know that:
Volume of a cylinder = πr²h.Finding the radius of the cylindrical water tank:
[tex]\rightarrow Diameter = 2(Radius)[/tex]
[tex]\rightarrow Radius = \frac{Diameter}{2} = \frac{12}{2} = 6 \ feet[/tex]
Now, let's find the volume of the cylinder by substituting the radius.
Finding the volume of the cylinder:
[tex]\rightarrow \tex V \tex o \tex l \tex u \tex m \tex e\tex \ \tex of \tex \ c \tex y \tex l \tex i \tex n \tex d \tex e \tex r = \pi r^{2} h[/tex]
[tex]\rightarrow \tex V \tex o \tex l \tex u \tex m \tex e\tex \ \tex of \tex \ c \tex y \tex l \tex i \tex n \tex d \tex e \tex r = (3.14)( 6^{2})( 17)[/tex]
[tex]\rightarrow \tex V \tex o \tex l \tex u \tex m \tex e\tex \ \tex of \tex \ c \tex y \tex l \tex i \tex n \tex d \tex e \tex r = (3.14)( 36)( 17)[/tex]
[tex]\rightarrow \tex V \tex o \tex l \tex u \tex m \tex e\tex \ \tex of \tex \ c \tex y \tex l \tex i \tex n \tex d \tex e \tex r = 1921.68 \ feet^{3}[/tex]
Rounding to the nearest whole number:
[tex]\rightarrow \tex V \tex o \tex l \tex u \tex m \tex e\tex \ \tex of \tex \ c \tex y \tex l \tex i \tex n \tex d \tex e \tex r = 1921.68 \ feet^{3}[/tex]
[tex]\rightarrow \tex V \tex o \tex l \tex u \tex m \tex e\tex \ \tex of \tex \ c \tex y \tex l \tex i \tex n \tex d \tex e \tex r = 1922 \ feet^{3} \ (Rounded \ to \ nearest \ whole \ number)[/tex]
Thus, the volume of the cylinder is 1922 feet³ (Rounded).
[tex]\\ \rm\rightarrowtail V=\pi r^2h[/tex]
[tex]\\ \rm\rightarrowtail V=\pi (6)^2(17)[/tex]
[tex]\\ \rm\rightarrowtail V=36(17)\pi [/tex]
[tex]\\ \rm\rightarrowtail V=612\pi[/tex]
[tex]\\ \rm\rightarrowtail V=1921.68ft^3[/tex]
whats the domain and range?
Answer:
The domain of a function is the set of values that we are allowed to plug into our function. The Range is the difference between the lowest and highest values
Step-by-step explanation:
HELP PLEASE I WILL GIVE BRAINLIEST !!!!
[tex]\\ \rm\Rrightarrow V=\pi r^2h[/tex]
[tex]\\ \rm\Rrightarrow h=\dfrac{V}{\pi r^2}[/tex]
[tex]\\ \rm\Rrightarrow h=\dfrac{226.2}{3.14(9)}[/tex]
[tex]\\ \rm\Rrightarrow h=226.2/28.26[/tex]
[tex]\\ \rm\Rrightarrow h=8cm[/tex]
[tex] \quad\rule{300pt}{1.5pt}\quad[/tex]
Ⲋⲟⳑⳙⲧⳕⲟⲛ :Information provided:
Volume of cylinder = 226.2 cm.Radius of cylinder = 3 cmwe have to use π = 3.14Volume of cylinder is given by:
[tex] \qquad\quad\bull~ {\boxed {\large\mathfrak {V = \pi r^2 h } }}[/tex]
ㅤ(We have to find the height of cylinder)
Ⲧⲏⲉⲅⲉ⳨ⲟⲅⲉ:
[tex] \quad\dashrightarrow\quad \sf {V = \pi r^2 h }[/tex]
[tex] \quad\dashrightarrow\quad \sf { 226.2 = 3.14 \times 3^2 \times h}[/tex]
[tex] \quad\dashrightarrow\quad \sf { h = \dfrac{226.2}{3.14\times 9}}[/tex]
[tex] \quad\dashrightarrow\quad \sf {h = \cancel{\dfrac{226.2}{28.26}} }[/tex]
[tex] \quad\dashrightarrow\quad \sf {h = 8.004 }[/tex]
[tex] \quad\dashrightarrow\quad {\pmb{\sf { h = 8 cm}}}[/tex]
ㅤㅤㅤㅤ~Hence, the height of given cylinder is 8cm.
[tex]\underline{\rule{300pt}{2pt}} [/tex]
Find the area of the circle to the nearest tenth. Use 3.14 for π.
Answer:
Step-by-step explanation:
Use the formula for area of a circle
A = [tex]\pi r^{2}[/tex]
The diameter is 8ft, if there was only a line from the middle to the edge of the circle, then it would be radius
The radius is half the diameter so divide 8 by two and you get the radius
Plug in the radius into the formula
A = [tex](4ft)^{2} \pi[/tex]
the parenthesis indicate you aren't only squaring the ft, but also the 4
4ft * 4ft = 16[tex]ft^{2}[/tex]
(remember you are also multiplying the unit, in this case feet)
A = [tex]16ft^{2} \pi[/tex]
there aren't parenthesis here, meaning you aren't squaring the 16
A = 50.24[tex]ft^{2}[/tex]
what is 3/5 as an percent
Answer:
60%
Step-by-step explanation:
multiply the numerator and denominator by 20 so that the denominator is 100:
[tex]\implies \dfrac35=\dfrac{3\times20}{5\times20}=\dfrac{60}{100}=60 \%[/tex]
Answer:
3/5 As a percent is 60%
To convert 3/5 to fraction
Therefore, the solution is 60%.
(a) Cup A has a diameter of 10 cm. and a height of 20 cm. Find the Volume of Cup A.
(b) Determine how many cups of punch the punch bowl will fill using Cup size A. Round the number of scoops to the nearest whole number, and make certain to show your work.
(c) Cup B has a diameter of 20 cm. and a height of 20 cm. Find the volume of Cup B.
(d) Determine how many cups of punch the punch bowl will fill using Cup size B. Round the number of scoops to the nearest whole number, and make certain to show your work.
Can someone help me with this?
The volume of cup A is 1570.8 cm³ while the volume of cup B is 6283 cm³
Volume
Volume is the amount of space occupied by a three dimensional object or figure.
The cup has the shape of a cylinder, the volume is:
Volume = π * radius² * height
For cup A:
Volume = π * (10/2)² * 20 = 1570.8 cm³
Let each punch be 1 cm³, the number of cups needed = 1570.8 cm³ / 1 cm³ = 1571
For cup B:
Volume = π * (20/2)² * 20 = 6283 cm³
Let each punch be 1 cm³, the number of cups needed = 6283 cm³ / 1 cm³ = 6283
The volume of cup A is 1570.8 cm³ while the volume of cup B is 6283 cm³
Find out more on Volume at: https://brainly.com/question/1972490
100 points PLEASE HELP!!!
complete the square to rewrite the following equation identify the center and radius of the circle you must show all work and calculations to receive credit. question is in the picture below!!
Answer:
Can you delete an answer
whats the probability of rolling a 6 on a dice
Answer:
1/6
Step-by-step explanation:
There are six sides to a dice, out of the sides one is marked 6.
So there is 1 out of the 6 sides that are 6.
what is the answer to the question:
6x-8y-5x+3y
Answer:
[tex]6x - 8y - 5x + 3y \\ (6x - 5x) + ( - 8y + 3y) \\ = x - 5y[/tex]
Which is a factor of 6x^2y + 8x^2 − 30y − 40?
Answer:
2(3y+4)(x2−5)
Step-by-step explanation:
Add and subtract the second term to the expression and factor by grouping.
2(3y+4)(x2−5)
Answer:
2(3y + 4) (x^2 - 5)
Step-by-step explanation:
Add and subtract the second term to the expression and factor by grouping.