Step-by-step explanation:
It is solved above
no of children and adult are let as x and y respectively
Galen sold 195 adult tickets and 645 children's tickets at the church carnival.
Explanation:Let's assume that the number of adult tickets sold is x.
The number of children's tickets sold is 30 more than 3 times the number of adult tickets sold. So, the number of children's tickets sold would be 3x + 30.
The total amount earned from selling adult tickets would be 5x, and the total amount earned from selling children's tickets would be 3(3x + 30) = 9x + 90.
Since the total amount earned from selling all the tickets is $2820, we can set up the equation:
5x + 9x + 90 = 2820
Simplifying the equation,
14x + 90 = 2820
Subtracting 90 from both sides,
14x = 2730
Dividing both sides by 14,
x = 195
Therefore, Galen sold 195 adult tickets. And the number of children's tickets sold would be 3(195) + 30 = 615 + 30 = 645.
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what is the value of x
The value of x is 15. When you draw out all three triangles individually, the proportion is 9/x=x/25. X squared equals 225. The square root of 225 is 15
7. I need help with question in the attached picture!
Given:
Principal amount =P=6000$
Required amount =A=8000$
Rate of compunded interest;r=9%=0.09
Let the number of years be 'n'
So.
A=P(1+r)^t
=> 8000 =6000 (1+0.09)^t
=>8000/6000 =(1.09)^t
=> 8/6 =4/3=1.999.. = (1.09)^t
=> (1.09)^t =1.999≈2
(After using calculator)
(1.09)^3 =1.2950...
(1.09)^9 =2.17189...
So approximately The Time in years required is 9 years... i.e option c.
Hope it helps...
Regards,
Leukonov/Olegion.
Answer:
The answer is approximately 3 years ⇒ answer B
Step-by-step explanation:
* Lets talk about the compound continuous interest
- Compound continuous interest can be calculated using the formula:
A = P e^rt
# A = the future value of the investment, including interest
# P = the principal investment amount (the initial amount)
# r = the interest rate
# t = the time the money is invested for
- The formula gives you the future value of an investment,
which is compound continuous interest plus the
principal.
- If you want to calculate the compound interest only, you need
to deduct the principal from the result.
- So, your formula is:
Compounded interest only = Pe^(rt) - P
* Now lets solve the problem
∵ P = $ 6000
∵ A = $ 8000
∵ r = 9/100 = 0.09
∵ t = ?
∵ A = P e^(r t)
∴ 8000 = 6000 e^(0.09 × t) ⇒ divide both sides by 6000
∴ 4/3 = e^(0.09 × t) ⇒ insert ㏑ for both sides
∴ ㏑(4/3) = ㏑ e^(0.09 × t) ⇒ (㏑e = 1)
∴ ㏑(4/3) = 0.09 t ⇒ divide the both sides by 0.09
∴ t = [㏑(4/3)] ÷ 0.09 = 3.196467 ≅ 3 years
The dot plots below show the weights of the players of two teams: Two dot plots are shown one below the other. The top and the bottom plots have the title Team E and Team F respectively. Below the line for each dot plot is written Weight followed by pounds in parentheses. The markings on each line are from 120 till 140 at intervals of 1. For the top plot there are 2 dots each for 130 and 139 and 1 dot each for 126, 127, 132, and 135. For the bottom plot there are two dots each for 120, 121 and 126 and 1 dot each for 123, and 128. Based on visual inspection of the dot plots, which team appears to have the larger mean weight? Not enough information is available to draw a conclusion. Both groups are similar. Team F Team E
Answer:
Team E appears to have the larger mean weight.
Step-by-step explanation:
After seeing the dot plot of two teams i.e. Team E and Team F the conclusion that can be drawn regarding the larger mean of the team is that:
Team E is expected to have larger mean since the dots are for the higher values of weights and hence will result in higher mean. whereas for team F the dots or frequencies are for smaller weights and hence will result in a less mean as compared to team E.
Hence, Team E appears to have the larger mean weight.
Answer:
team E
Step-by-step explanation:
which point best approximates the square root of 3?
It's B.
If [tex]0<x<1[/tex], then it's also the case that [tex]0<x^2<1[/tex], because multiplying any number [tex]x[/tex] by a number (in this case, also [tex]x[/tex]) between 0 and 1 scales that number down.
It's not C, because [tex]2^2=4\neq3[/tex].
It's not D, because [tex]3^2=9\neq3[/tex].
Answer:
Point B
Step-by-step explanation:
The square root of 1 is one, so it must be larger than 1.
The square root of 2 is 4 so it must be smaller than 2.
B would make the most sense
Two similar rectangular prisms have a scale factor of 3.4/5.1 .Find the ratio of their volumes. The answer choices are
A. 1/8
B. 8/27
C. 4/9
D. 8/9
[tex]b. \: \frac{8}{27} [/tex]
the original price of a video game was 49.95 .The price was dropped to 45.50 .What was the percent of decrease from the original price
To find the percent of decrease from the original price of a video game, subtract the new price from the original price, divide by the original price, and multiply by 100.
Explanation:To find the percent of decrease from the original price, we can use the formula:
Percent decrease = [(change in price)/(original price)] × 100
Substituting the given values:
Percent decrease = [(49.95 - 45.50)/(49.95)] × 100 = 4.45/49.95 × 100 = 8.9%
Therefore, the percent of decrease from the original price is 8.9%
if esther deposited $50 at the end of each month into an account with no interest, how much money would she have saved by the end of 12 months?
Answer:
$600
Step-by-step explanation 50 dollars every month for 12 months you would do 12 *50 and it gives you 600
Answer:
By the end of 12 months, Esther would have $600.
Step-by-step explanation:
As Esther deposits $50 each month in her account, and the account does not produce interests, it is just an addition of money each time she puts $50 in it. That money won't increase until she puts another $50 at the end of the following month. Therefore, by the end of twelve months, she would have $600 (50 x 12 = 600).
Natalie lives 1/6 mile from school. Peter lives 3/10 mile from school. How many miles further does Peter live from the school than Natalie?
Answer:
2/15
Step-by-step explanation:
We need to find the difference between the houses
Peter - Natalie
3/10 - 1/6
Get a common denominator of 30
3/10 * 3/3 - 1/6*5/5
9/30 - 5/30
4/30
Divide top and bottom by 2
2/15
Simplify using the distributive property.
8(y + 12)
8y=12
20y
20 - y
8y + 96
Answer:
Correct choice is D). 8y + 96.
Step-by-step explanation:
Given expression is [tex]8\left(y+12\right)[/tex].
Now question says to simplify that expression using distributive property then find the correct matching choice from the given choices:
A). 8y=12
B). 20y
C). 20 - y
D). 8y + 96
So let's distribute 8 by using distributive property
[tex]a\left(b+c\right)=a\left(b\right)+a\left(c\right)[/tex]
[tex]8\left(y+12\right)=8\left(y\right)+8\left(12\right)[/tex]
[tex]8\left(y+12\right)=8y+96[/tex]
Hence correct choice is D). 8y + 96.
A survey asked people of different ages whether they get their news by reading the paper. What is the probability that a person surveyed is under and does not get the news by reading the paper?
Answer: I believe it is A
Step-by-step explanation:
In this table, you have to look at multiple things in the table. So you have to look at where it says Under 40 and that don't read the paper. So according to what I learned with this, you would have to do 36/40 and then get 0.9 which would be in percent form: 90 %.
I would recommend looking at another person's response also, before you submit this question. But hope this helps!
The probability that a person surveyed is under and does not get the news by reading the paper is A; 90%.
What is the probability?Probability refers to a possibility that deals with the occurrence of random events.
The probability of all the events occurring need to be 1.
P(E) = Number of favorable outcomes / total number of outcomes
So,
P(a person is under 40 and doesn't get the news by reading the paper)
= 36/40
= 0.90
= 90 %
Hence, option A is correct.
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A rectangular prism has a volume of 300 ft^3. If the base measures 5 ft by 8 ft, what is the height of the prism?
Answer:
The height of the prism is [tex]7.5\ ft[/tex]
Step-by-step explanation:
we know that
The volume of the prism is equal to
[tex]V=BH[/tex]
where
B is the area of the base of prism
H is the height of the prism
Find the area of the base B
[tex]B=(5)(8)=40\ ft^{2}[/tex]
we have
[tex]V=300\ ft^{3}[/tex]
substitute in the formula and solve for H
[tex]300=40(H)[/tex]
[tex]H=300/40[/tex]
[tex]H=7.5\ ft[/tex]
What is the measure of the sector shaded above?
[tex]\bf \textit{area of a sector of a circle}\\\\ A=\cfrac{\pi \theta r^2}{360}~~ \begin{cases} r=&radius\\ \theta =&angle~in\\ °rees\\ \cline{1-2} r=&6\\ \theta =&87 \end{cases}\implies A=\cfrac{\pi (87)(6)^2}{360}\implies A=\cfrac{87\pi }{10} \\\\\\ A\approx 27.332\implies \stackrel{\textit{rounded up}}{A=27.3}[/tex]
Mike spent $7920 on his vacation, which was 11% of his monthly salary. What was his monthly salary?
Amount spent on vacation=$7920,
Let Mike monthly salary be x,
11% of X= $7920,
[tex] \frac{11}{100} \times x = 7920[/tex]
[tex]11x = 7920 \times 100[/tex]
[tex]x = 792000 \div 11[/tex]
[tex]x = 72000[/tex]
Answer: 720
Step-by-step explanation: divide 7920 into 11 and you will get your answer.
Determine if (4,-6) is a solution for this system of equations:
y=x+10
2x+y=-2
Answer:
its not....
Step-by-step explanation:
-6=4+10
not true
2(4)+(-6)=-2
8-6=-2
Also not true
find the missing term of each pair of equivalent ratio 95:15= ____:42 show steps please
and
98:112=63_____
Answer: 1. 266
2. 72
1. 95 : 15 = ___ : 42
Form a proportion. Let x be the missing term.
[tex]\frac{95}{15} = \frac{x}{42}[/tex]
Solve for x by cross-multiplying.
[tex]15x = 95(42)\\15x = 3990\\x = 266[/tex]
2. 98 : 112 = 63 : ___
Form a proportion. Let x be the missing term.
[tex]\frac{98}{112} = \frac{63}{x}[/tex]
Solve for x by cross-multiplying.
[tex]98x = 112(63)\\98x = 7056\\x = 72[/tex]
Plz help with d I really need it
Answer:c 4
Step-by-step explanation:because ti is in the middle
Answer:
1+1+2+3+3+3+4+4+4+4+4+5+5+5+5+6+6+6+7+7/20 is 78.35
Step-by-step explanation:
a camper has 6 storage compartments. each compartment can hold 3 sleeping bags. if there are 17 sleeping bags to be stired, how many comoartments will be usef? how many sleeping bags will ne in the compartment that is nit completely filled?
Answer:
The camper will use all 6 storage compartments, with 2 sleeping bags in the one that is not completely filled.
Step-by-step explanation:
If 6 storage compartments can each hold 3 sleeping bags, 18 (6*3) sleeping bags in total will be able to be stored.
We only have 17, which is one bag less than 18, so we can think of it as having one compartment with one bag less than all the others (they have three). Therefore, there are 2 sleeping bags in that storage compartment.
We can also divide 17 by 3 to find how many compartments will be filled. The remainder is the number of bags in the one that is not completely full.
17/3 = 5 r2
But because the camper still needs to put those two sleeping bags in a compartment, they will use 6.
5 compartments will be completely used, and the 6th compartment will contain 2 sleeping bags.
To determine how many storage compartments will be used for storing 17 sleeping bags, when each compartment can hold 3 sleeping bags, we can divide 17 (the total number of sleeping bags) by 3 (the capacity of each compartment):
Divide 17 by 3 which gives us 5 with a remainder of 2.The quotient (5) indicates that 5 full compartments will be used.The remainder (2) tells us that there will be 2 sleeping bags in the compartment that is not completely filled.Therefore, 5 compartments will be completely used, and the 6th compartment will contain 2 sleeping bags.
What is the measurement of Angle O in parallelogram LMNO. When angle L is (x+40) and angle O is (3x)
In a parallelogram, opposite angles are congruent.
This means that the four angles of the parallelogram are:
[tex]L = x+40,\quad M = 3x,\quad N = x+40,\quad O = 3x[/tex]
Moreover, the sum of the interior angles of a polygon with n sides is 180(n-2). So, the sum of the interior angles of a parallelogram is 360.
This means
[tex]L+M+N+O = 360 \iff 2(x+40)+2(3x) = 2x+80+6x = 360 \iff 8x = 280 \iff x = 35[/tex]
And since [tex]O=3x[/tex], we have [tex]O=3\cdot 35=105[/tex]
Answer:
Angle O(3x) is =105 degrees or C
What is the correlation coefficient with the following data points: (2,47), (3,2), (5,26)?
0.19
-0.29
0.29
-0.19
The second one is the answer
Answer:
Option B (-0.29)
Step-by-step explanation:
Given are x,y values as
(2,47), (3,2), (5,26)
x y xy x^2 y^2
2 47 94 4 2209
3 2 6 9 4
5 26 130 25 676
Total 10 75 230 38 2889
Cov -6.666666667
r -0.2907
Thus we find correlation coefficient is -0.29
Option B is right
Use Euler's Formula
2) vertices: 11
Edges: 34
Faces: ?
A: 25
B: 28
C: 26
D: 24
3: Edges: 36
Faces: 22
Vertices: ?
A: 19
B: 15
C: 16
D: 17
4) Faces: 12
Vertices: 10
Edges: ?
A: 23
B: 22
C: 25
D: 20
# 5 has a picture attached with the answer choices
If you help can you maybe explain how to do one of them for me it would really help me out a lot!
Answer:
Part 2) Option A: 25
Part 3) Option C: 16
Part 4) Option D: 20
Part 5) pentagon
Step-by-step explanation:
we know that
The Euler's formula state that, the number of vertices, minus the number of edges, plus the number of faces, is equal to two
so
[tex]V- E+ F=2[/tex]
Part 2) we have
vertices: 11
Edges: 34
Faces: ?
substitute the values in the formula and solve for F
[tex]11- 34+ F=2[/tex]
[tex]-23+ F=2[/tex]
Adds 23 both sides
[tex]F=2+23[/tex]
[tex]F=25[/tex]
Part 3) we have
Edges: 36
Faces: 22
Vertices: ?
substitute the values in the formula and solve for V
[tex]V- 36+ 22=2[/tex]
[tex]V- 14=2[/tex]
Adds 14 both sides
[tex]V=2+14[/tex]
[tex]V=16[/tex]
Part 4) we have
Faces: 12
Vertices: 10
Edges: ?
substitute the values in the formula and solve for E
[tex]10- E+ 12=2[/tex]
[tex]- E+ 22=2[/tex]
Subtract 22 both sides
[tex]- E=2-22[/tex]
[tex]- E=-20[/tex]
Multiply by -1 both sides
[tex]E=20[/tex]
Part 5) we know that
The cross section of the figure is a plane figure with five straight sides and five angles
therefore
The figure is a pentagon
A rectangular prism has a volume of 750 cubic millimeters. Its length is 15
millimeters, and its width is 10 millimeters. What is its height? You must show your
work to earn full credit.
Answer: 5 milimeters.
Step-by-step explanation:
The formula for calculate the volume of a rectangular prism is:
[tex]V=lwh[/tex]
Where "V" is the volume, "l" is the lenght, "w" is the width and "h" is the height.
You know that the volume, the lenght, and the width of this rectangular prism are:
[tex]V=750mm^3\\l=15mm\\w=10mm[/tex]
Substitutute these values into the formula and solve for the the height "h":
[tex]750mm^3=(15mm)(10mm)h\\\\h=\frac{750mm}{(15mm)(10mm)}\\\\h=5mm[/tex]
Final answer:
To find the height of a rectangular prism, you can use the formula V = l x w x h and calculate the missing dimension. In this case, the height of the rectangular prism is 5 millimeters.
Explanation:
A rectangular prism, also known as a rectangular solid or box, is a three-dimensional shape that has six rectangular faces. The formula to find the volume of a rectangular prism is V = l x w x h, where l is the length, w is the width, and h is the height. In this case, the given length is 15 mm, the width is 10 mm, and the volume is 750 cubic mm. To find the height, plug these values into the formula as follows:
750 = 15 x 10 x h
h = 750 / (15 x 10) = 750 / 150 = 5 mm
Therefore, the height of the rectangular prism is 5 millimeters.
Simplify. (2x^5+x^3−3x^4−x+8)−(7x^5+2x^4−12+6x−5x^3+x^2) Enter your answer, in standard form, in the box.
Answer:
-5x^5 -5x^4 +6x^3 -x^2 -7x +20
Step-by-step explanation:
(2x^5+x^3−3x^4−x+8)−(7x^5+2x^4−12+6x−5x^3+x^2)
Distribute the minus sign
(2x^5+x^3−3x^4−x+8)−7x^5-2x^4+12-6x+5x^3-x^2
Put them in order from largest exponent to smallest exponent
2x^5−7x^5−3x^4-2x^4+5x^3+x^3-x^2-6x−x+8+12
Combine like terms
-5x^5 -5x^4 +6x^3 -x^2 -7x +20
Standard form is from largest exponent to smallest exponent
Please Help!!
Write in exponential form.
Answer:
C, [tex]5e^{i(5\pi/3)[/tex]
Step-by-step explanation:
Euler's formula:
[tex]e^{ix}=\cos{x}+i\sin{x}[/tex]
Looking at the expression in the parentheses, your x is explicitly given to you as [tex]5\pi/3[/tex], so using Euler's formula:
[tex]5\left(\cos\frac{5\pi}{3}+i\sin{\frac{5\pi}{3} })=5e^{i(5\pi/3)[/tex]
Which is C.
The area of a triangle is 41 yd^2, with a base of 5 yards. What is the height, in yards?
A.
16.4
B.
102.5
C.
20.5
D.
20
Answer:
I am pretty sure the answer would be A.
PLEASE HELP!! Need the equation in its exponential form.
For this case we have that by properties of logarithm that:
[tex]log_ {b} (a) = c[/tex] is equivalent to the following expression:
[tex]b ^ c = a[/tex]
We have the following expression:
[tex]log_ {7} () = - 3[/tex]
Then, according to the property we have:
[tex]7 ^ {- 3} =[/tex]
ANswer:
[tex]7 ^ {- 3} =[/tex]
Option A
The number 64 is a perfect ___
A. Square
B. Cube
C. Both
Answer:
c.
Step-by-step explanation:
The number 64 is a perfect cube and square also. Option C: Cube and square
In mathematics, a perfect cube is a number that is the cube of an integer.
In other words, it is the product obtained when an integer is multiplied by itself twice.
Since perfect square is a number system that can be expressed as the
square of a given number from the same system.
The perfect cube of 4 is 64 because 4 x 4 x 4 = 64.
Hence, option B is correct.
The perfect Square of 8 is 64 because 8 x 8 = 64.
Hence, option A is correct.
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Help, Please!
Determine the solution to f(x) = g(x) using the following system of equations: (5 points)
f(x) = 3x + 12
g(x) = −9.5x − 13
Select one:
a. x = −2
b. x = −3
c. x = 4
d. x = 5
Answer:
a. x = −2
Step-by-step explanation:
f(x) = g(x)
Substitute the functions in
3x+12 = -9.5x -13
Add 9.5x to each side
3x+9.5x+12 = -9.5x+9.5x -13
12.5x +12 = -13
Subtract 12 from each side
12.5x+12-12 = -13-12
12.5x = -25
Divide by 12.5
12.5x/12.5 = -25/12.5
x = -2
Answer:
a. x = −2
f(x) = g(x)
Substitute the functions in
3x+12 = -9.5x -13
Add 9.5x to each side
3x+9.5x+12 = -9.5x+9.5x -13
12.5x +12 = -13
Subtract 12 from each side
12.5x+12-12 = -13-12
12.5x = -25
Divide by 12.5
12.5x/12.5 = -25/12.5
x = -2
This my worst subject please help
Answer:
What is the question?
Answer:
F = -3.2 is the answer
Jolie bought 3.75 pounds of turkey at the deli. About how many pounds of turkey did Jolie buy?
Answer:
4 pounds
Step-by-step explanation:
"About" means that you are rounding. Most of the time, when you are rounding food, you generally round to the next whole number. In this case, it is 3.75, so you round to 4.
Jolie bought ~4 pounds of turkey.
The reason you round up, is because you can have less than amount, but generally not more. Also, food's weight can change depending on temperature, heat, how it is at the moment (cooked, non-cooked, mashed, processed, unprocessed, etc.).
~
Simplify:
[tex] \sqrt{20} + \sqrt{45} - \sqrt{32} [/tex]
Answer:
[tex] \sqrt{20} + \sqrt{45} - \sqrt{32} = [/tex]
[tex] \sqrt{4} \sqrt{5} + \sqrt{9} \sqrt{5} - \sqrt{16} \sqrt{2} = [/tex]
[tex]2 \sqrt{5} + 3 \sqrt{5} - 4 \sqrt{2} = [/tex]
[tex]5 \sqrt{5} - 4 \sqrt{2} [/tex]
2√5 + 3√5 - 4√2 = 5√5 - 4√2. To simplify the expression with square roots, evaluate each square root separately and then combine the results.
To simplify the expression, simplify each square root individually:
√20 = 2√5√45 = 3√5√32 = 4√2Then substitute these values back into the original expression: 2√5 + 3√5 - 4√2 = 5√5 - 4√2.