Please help, I need an explanation!

A circus charges $5 per child ticket and $8 per adult ticket. There were 136 tickets sold for a total of $830. How many child tickets and how many adult tickets were purchased?

I know that I need to use c + a =136 and 5c + 8a = 830

Answers

Answer 1

Answer:

50 adult

86 child

Step-by-step explanation:

c + a =136

5c + 8a = 830

These are the two equations to use

c is the number of child tickets and a is the number of adult tickets

The total number of tickets is 136

The child tickets are 5 dollars apiece and the adult tickets are 8 dollars apiece and the total amount made is 830

I will use elimination

Multiply the first equation by -5

-5(c+a) = -5*136

-5c-5a =-680

Then add this to the second equation

-5c-5a =-680

5c +8a = 830

------------------------

    3a  = 150

Divide each side by 3

3a/3 = 150/3

a = 50

Now we can find c

a+c = 136

50 + c = 136

Subtract 50 from each side

50+c-50 =136-50

c = 86

Answer 2

Answer:

child tickets: 86

adult tickets: 50

Step-by-step explanation:

C + A = 136

C = 136 - A

5C + 8A = 830

5(136 - A) + 8A = 830

680 - 5A + 8A = 830

3A = 150

A = 50

C = 136 - 50

C = 86


Related Questions

I ran 800m, 5km,1,000cm. How many meters did I run all together

Answers

Answer:

5810 meters

Step-by-step explanation:

800 meters

5km = 5,000 meters

1,000 cm = 10 meters

Add all together to get 5810 meters

The function s(V) = Negative RootIndex 3 StartRoot uppercase V EndRoot describes the side length, in units, of a cube with a volume of V cubic units. Jason wants to build a cube with a minimum of 64 cubic centimeters.


What is a reasonable range for s, the side length, in centimeters, of Jason’s cube?


s > 0

s greater-than-or-equal-to 4

s greater-than-or-equal-to 8

s greater-than-or-equal-to 16

Answers

Answer:

(B)s greater-than-or-equal-to 4

[tex]s\geq 4[/tex]

Step-by-step explanation:

The function [tex]s(V)=\sqrt[3]{V}[/tex] describes the side length, in units, of a cube with a volume of V cubic units.

If Jason wants to build a cube with a minimum of 64 cubic centimeters,

[tex]V\geq 64 $ cubic meters[/tex]

Therefore:

[tex]s(V)\geq \sqrt[3]{64}\\s\geq 4 $ Units[/tex]

The correct option is B.

Answer:

B. s greater-than-or-equal-to 4

Step-by-step explanation:

What is the reduced and simplified value of the expression given below

Answers

Answer:

8

Step-by-step explanation:

4 x 6

-------

3

to... 24

---- = 8

3

Answer:

8

Step-by-step explanation:

[tex]\frac{\sqrt{16}*\sqrt{36} }{\sqrt{9} } =\frac{4 * 6}{3}=\frac{24}{3} =8[/tex]

Please mark my answer as the brainliest!!!!

Which temperature is warmest?

-12°

-17°
-34°

Answers

I think it’s 0 bc it’s the only one that isn’t negative

Answer:

0

Step-by-step explanation:

It is 0 because that is not negative and it is the closest to positive as positive is usually warmer than negative temperatures

Jackie makes an $800 deposit into a bank account earning 4.5% interest.
a. If the interest is compounded quarterly how much money will Jackie have in 10 years?
b. If the interest is compounded continuously how much money will Jackie have in 10 years?
C. If Jackie's money is compounded continuously, how long will it take her money to double?
d. If Jackie's money is compounded monthly, how long will it take her money to triple?

Answers

Final answer:

For part a, Jackie will have approximately $1217.62 after 10 years with quarterly compounding interest. For part b, Jackie will have approximately $1226.96 after 10 years with continuous compounding interest. For part c, it will take approximately 15.43 years for Jackie's money to double with continuous compounding interest. For part d, it will take approximately 38.51 years for Jackie's money to triple with monthly compounding interest.

Explanation:

For part a, to calculate the amount of money Jackie will have in 10 years with quarterly compounding interest, we can use the compound interest formula: A = P(1 + r/n)^(nt), where A is the final amount, P is the principal amount, r is the interest rate, n is the number of times compounded per year, and t is the number of years. Plugging in the values, we have A = 800(1 + 0.045/4)^(4*10), which gives us A ≈ $1217.62.

For part b, to calculate the amount of money Jackie will have in 10 years with continuous compounding interest, we can use the formula: A = P * e^(rt), where e is Euler's number and approximately equal to 2.71828. Plugging in the values, we have A = 800 * e^(0.045 * 10), which gives us A ≈ $1226.96.

For part c, to find out how long it will take Jackie's money to double with continuous compounding interest, we can use the formula: t = ln(2) / r, where t is the time in years and r is the interest rate. Plugging in the values, we have t = ln(2) / 0.045, which gives us t ≈ 15.43 years.

For part d, to find out how long it will take Jackie's money to triple with monthly compounding interest, we can use the formula: t = ln(3) / (n * ln(1 + r/n)), where t is the time in years, n is the number of times compounded per year, and r is the interest rate. Plugging in the values, we have t = ln(3) / (12 * ln(1 + 0.045/12)), which gives us t ≈ 38.51 years.

a. If the interest is compounded quarterly, Jackie will have approximately $1,313.63 in 10 years.

b. If the interest is compounded continuously, Jackie will have approximately $1,256.39 in 10 years.

c. If Jackie's money is compounded continuously, it will take approximately 15.4 years for her money to double.

d. If Jackie's money is compounded monthly, it will take approximately 62.47 years for her money to triple.

Step 1

To solve this problem, we can use the compound interest formula:

[tex]\[ A = P \left(1 + \frac{r}{n}\right)^{nt} \][/tex]

Where:

- A is the amount of money accumulated after t years, including interest.

- P is the principal amount (the initial deposit).

- r is the annual interest rate (as a decimal).

- n is the number of times interest is compounded per year.

- t is the time the money is invested for, in years.

Given:

- [tex]\( P = \$800 \)[/tex]

-[tex]\( r = 0.045 \)[/tex] (4.5% as a decimal)

- n is either 4 for quarterly compounding or tends to infinity for continuous compounding.

Step 2

We'll calculate each part step by step:

a. Quarterly compounding:

- [tex]\( n = 4 \)[/tex]

- [tex]\( t = 10 \)[/tex]

Substituting into the formula:

[tex]\[ A = 800 \left(1 + \frac{0.045}{4}\right)^{4 \times 10} \]\[ A = 800 \left(1 + \frac{0.045}{4}\right)^{40} \]\[ A = 800 \left(1 + 0.01125\right)^{40} \]\[ A = 800 \times 1.01125^{40} \]\[ A = 800 \times 1.642032881 \]\[ A = \$1,313.63 \][/tex]

Step 3

b. Continuous compounding:

For continuous compounding, we use the formula:

[tex]\[ A = P e^{rt} \][/tex]

Where e is the base of the natural logarithm, approximately equal to 2.71828.

Substituting the values:

[tex]\[ A = 800 \times e^{0.045 \times 10} \]\[ A = 800 \times e^{0.45} \]\[ A = 800 \times 1.570482165 \]\[ A = \$1,256.39 \][/tex]

Step 4

c. To find out how long it takes for the money to double with continuous compounding, we use the formula:

[tex]\[ A = P e^{rt} \][/tex]

We need to solve for t  when [tex]\( A = 2P \):[/tex]

[tex]\[ 2P = P e^{0.045t} \]\[ 2 = e^{0.045t} \]\[ \ln(2) = 0.045t \]\[ t = \frac{\ln(2)}{0.045} \][/tex]

Substituting the values:

[tex]\[ t = \frac{\ln(2)}{0.045} \]\[ t = \frac{0.693}{0.045} \]\[ t = 15.4 \text{ years} \][/tex]

So, it takes approximately 15.4 years for Jackie's money to double with continuous compounding.

Step 5

d. To find out how long it takes for the money to triple with monthly compounding, we use the compound interest formula again, but this time we set [tex]\( A = 3P \)[/tex]:

[tex]\[ 3P = P \left(1 + \frac{0.045}{12}\right)^{12t} \]\[ 3 = \left(1 + \frac{0.045}{12}\right)^{12t} \]\[ \ln(3) = 12t \ln\left(1 + \frac{0.045}{12}\right) \]\[ t = \frac{\ln(3)}{12 \ln\left(1 + \frac{0.045}{12}\right)} \][/tex]

Substituting the values:

[tex]\[ t = \frac{\ln(3)}{12 \ln\left(1 + \frac{0.045}{12}\right)} \]\[ t = \frac{1.099}{12 \times 0.0037} \]\[ t = 62.47 \text{ years} \][/tex]

So, it takes approximately 62.47 years for Jackie's money to triple with monthly compounding.

6,000 is invested in an account that earns 4.5% annual interest, compound quarterly. What is the value of the account after 8 years?

Answers

Your answer is 8,582.71

What are the coordinates of the first alien who needs to be rescued?

What is the slope of the line that provides the correct path to rescue the alien?

Answers

Answer:

1,4 and 4

Step-by-step explanation:

Answer:

1 4 4

Step-by-step explanation:

Darla got a job at a jewelry store. She gets paid $20 for each ring she sells and $50 for each necklace she sells. How much will she earn if she sells 15 rings and 9 necklaces?

Answers

Answer:

$750

Step-by-step explanation:

Answer:

$750

Step-by-step explanation:

50 times 9 = 450

20 times 15 = 300

450+300=750

The letter represents where the amount of $158.29 should be written.


The letter represents where the amount of $250 should be written.

Answers

Answer:

The letter A represents where the amount of $158.29 should be written.

The letter D  represents where the amount of $250 should be written.

Step-by-step explanation:

Ivan spent $158.29 on groceries so that would be debit -

For letter D he is transferring money

The letter 'a' represents where the amount of $158.29 should be written. And the letter d represents where the amount of $250 should be written.

What is Debit?

Debit is an entry in the accounting sheet where there forms an increase in the assets or decrease in the liabilities. Positive values for assets and liabilities are debited and the negative balances are credited on balance sheet.

Given that Ivan spent $158.29 on groceries.

He then transferred $250 to his savings account.

On the check register, there are two letters, letter a and letter d.

a is the amount debited for groceries. So the letter a represents where the amount of $158.29 should be written.

d is the amount debited for a transfer. So the letter d represents where the amount of $250 should be written.

Hence the letter 'a' represents where the amount of $158.29 should be written. And the letter d represents where the amount of $250 should be written.

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The full question is :

Look at ivan’s check register. ivan spent $158.29 on groceries. he then transferred $250 to his savings account. a check register. a is the amount debited for groceries. d is the amount debited for a transfer. the letter represents where the amount of $158.29 should be written. the letter represents where the amount of $250 should be written.

All parbolas with vertical directrix open to the left or right
True or false

Answers

true!

all parabolas with vertical directrix DO open to the left/right.
Final answer:

The statement is false because parabolas can also open upwards or downwards if the directrix is horizontal. A parabola's open direction depends on the position of the directrix relative to the focus.

Explanation:

The statement that "All parabolas with vertical directrix open to the left or right" is false. A parabola's orientation is determined by the position of its directrix in relation to its focus. If you have a vertical directrix, the parabola will indeed open to the left or the right, depending on the side of the directrix the focus lies. However, if the directrix is horizontal, the parabola will open upwards or downwards. To help understand this, recall that the directrix serves as a line that, in combination with the focus, defines the set of points that make up the parabola—that is, points equidistant from both the focus and the directrix. Furthermore, the equation of a parabola can change based on the orientation and position of the axis, the focus, and the directrix, as shown in various figures and equations related to parabolic motion and geometry.

You are at a sandwich shop. You can choose from white or rye bread, turkey or ham, and Swiss or American
cheese to make your sandwich. All eight possible sandwich combinations are listed below.
If we take sandwiches 3, 4, 5, and 6 as a subset of the sample space, which of the statements below describe
this subset?

Answers

Answer: The correct is answer is: The subset consists of all the sandwiches with either white bread and ham or rye bread and turkey.

Step-by-step explanation: I got this question correct.

The statement of the subset is given below. Then the correct options are A, C, and D.

What are Sets?

Sets are groups of clearly specified components. The number of items in a finite set is denoted by a curly bracket.

You are at a sandwich shop.

You can choose from white or rye bread, turkey or ham, and Swiss or American cheese to make your sandwich.

Then the number of the sample will be

Total sample = 2 x 2 x 2 = 8

The set will be {(WTS), (WTA), (WHS), (WHA), (RTS), (RTA), (RHS), (RHA)}.

All eight possible sandwich combinations are listed below.

If we take sandwiches 3, 4, 5, and 6 as a subset of the sample space.

Then the statements below describe this subset will be {(WHS), (WHA), (RTS)(RTA)}

The subset consists of all the sandwiches with either white bread and Swiss cheese or rye bread and American cheese.

The subset consists of all the sandwiches with white bread and ham.

The subset consists of all the sandwiches with rye bread and turkey.

Then the correct options are A, C, and D.

The complete question is attached below.

More about the sets link is given below.

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Invent a data set with five numbers that has a mean of 10 and a median of 12.

Answers

Answer:

7,7,12,12,12

Step-by-step explanation:

7+7+12+12+12=50/5=10=Mean

Median=12

The data set could be as follow 7,7,12,12,12 which has a mean of 10 and a median of 12.

What are mean and median?

The mean is the average value which can be calculated by dividing the sum of observations by the number of observations

Mean = Sum of observations/the number of observations

Median represents the middle value of the given data when arranged in a particular order.

we have given the information of the data set with five numbers that have a mean of 10 and a median of 12.

Mean = 10

Let's assume the given data set 7,7,12,12,12 so, this must satisfy the information

7+7+12+12+12=50/5

Mean =10

Also,

Median=12

Thus, the data set could be as follow 7,7,12,12,12 which has a mean of 10 and a median of 12.

Learn more about mean and median;

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Are (-1,3) and (1,5) parallel

Answers

Answer:

no

Step-by-step explanation:

assuming these are slopes?? two points cant be parallel theyre just dots, no these are not parallel

Please mark as brainliest

No It Is Not Parallel

Explanation

...

A triangular pyramid has a base area of 24 square meters and a height of 4 meters. What is the volume of the pyramid?

Answers

Answer:

32 cubic meter

Step-by-step explanation:

Volume  for any pyramid  is given by  following expression

volume of pyramid = 1/3( area of base of pyramid * height of pyramid)

________________________________

In the problem

base area of pyramid = 24 sq. m

height = 4 m

Therefore substituting the above given value in formula for volume of pyramid we have

volume of pyramid = 1/3( 24 sq. m * 4 m) = 8 sq. m * 4 m   (since 24/3 = 8)

volume of pyramid =  32 cubic meter.

Find one value of x that is a solution to the equation: (3x-1)^2 +12x -4 =0
X =

Answers

X= -1 or X= 1/3= 0.333

A circle has a radius of 6. An arc in this circle has a central angle of 330º.
What is the length of the arc?
Either enter an exact answer in terms of or use 3.14 for it and enter your answer as a decimal.

Answers

Answer:

The length of the arc is approximately [tex]\( 17.27 \)[/tex] units.

Explanation:

To find the length of the arc, we use the formula:

[tex]\[ \text{Arc Length} = \frac{\text{Central Angle}}{360^\circ} \times 2\pi r \][/tex]

where:

- Central Angle is the measure of the angle formed by the arc and the center of the circle

- [tex]\( r \)[/tex] is the radius of the circle

Given:

- Radius ([tex]\( r \)[/tex]) = 6

- Central Angle = 330º

Plugging the values into the formula:

[tex]\[ \text{Arc Length} = \frac{330^\circ}{360^\circ} \times 2\pi \times 6 \][/tex]

[tex]\[ \text{Arc Length} = \frac{330}{360} \times 2\pi \times 6 \][/tex]

[tex]\[ \text{Arc Length} = \frac{11}{12} \times 2\pi \times 6 \][/tex]

[tex]\[ \text{Arc Length} = \frac{11}{2} \pi \][/tex]

Using [tex]\( \pi \approx 3.14 \)[/tex], we can approximate the value:

[tex]\[ \text{Arc Length} \approx \frac{11}{2} \times 3.14 \][/tex]

[tex]\[ \text{Arc Length} \approx 17.27 \][/tex]

So, the length of the arc is approximately [tex]\( 17.27 \)[/tex] units.

can someone please help me with exponential models (algebra 2)? i have three word problems i really need help with. i put a picture of them. i only need 26, 28, and 30. thank you :)

Answers

I will see if i can help you since you had helped me

26. 244611.80  $

27. ?

28. 2568246.87126  $

29. 11850.59

30. 426647.047  $

I do not know about #27

But I do know about the rest

Carlos correctly answered 46 of the 50 questions.what percent of the questions did he answer correctly?

Answers

92% just divide the numerator by the denominator

Answer:

92%

Step-by-step explanation:

46/50=?/?

multiply 50 by 2 then 46 by 2

46/50=92/100

92/100= 92%

What is the volume of a cylinder with base radius 2 and height 9?
Either enter an exact answer in terms of TT or use 3.14 for 7 and enter your answer as a decimal.
cubic units

Answers

Answer:

V = 36[tex]\pi[/tex] units³

Step-by-step explanation:

Use the formula for the volume of a cylinder, V = [tex]\pi[/tex]r²h, where r is the radius and h is the height:

Plug in the values:

V = [tex]\pi[/tex](2²)9

V = 36[tex]\pi[/tex] units³


Two functions are given below: f(x) and h(x). State the axis of symmetry for each function and explain how to find it.

f(x) = −4(x − 8)2 + 3

Answers

Answer:

the symmetry for each function is -8 and -4

hoped that helped:P

Final answer:

The axis of symmetry for the function f(x) = -4(x - 8)^2 + 3 is x = 0.

Explanation:

The axis of symmetry of a quadratic function can be found using the formula:

x = -b / (2a)

For the function f(x) = -4(x - 8)^2 + 3, the coefficient of the x^2 term is -4 (which is a) and the coefficient of the x term is 0 (which is b).

Therefore, the axis of symmetry can be found as:

x = -b / (2a) = -0 / (2*(-4)) = 0

So, the axis of symmetry for the function f(x) = -4(x - 8)^2 + 3 is x = 0.

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The school bus Evie rides is scheduled to arrive at her bus stop at 8:20 a.m. each day. The table below shows the actual arrival times that of the bus for several days that were randomly selected over the past few months. Based on these data, what is the probability that the bus will arrive at Evies stop before 8:20 a.m. tomorrow

Answers

Answer:

The probability of the bus getting there BEFORE 8:20 isn't likely

I took an average of all of the numbers and its shows that he bus will be there about 8:20.25

Harry bought a used bike for 1,050. Before purchasing the bike, Harry had a total of 1250 I. His savings account what percentage of his account did Harry spend on a diet bike?

Answers

Answer:

84%

Step-by-step explanation:

1,050÷1250

= 0.84

=84%

2. In an effort to improve emergency response times, the city manager made the following line graph. The graph represents the average
response times of the police department and the paramedics to traffic incidents where both departments responded to the same call.
Use the graph and predict at which of the following times that the paramedics will have a faster response time.

Answers

Answer:

2 PM

3 PM

4 PM

8 PM

Step-by-step explanation:

*Note the following:

I used the hours after midnight to calculate the time of day/night.

The lower the graph on the line, the lower (AKA faster) response time.

The paramedics had a faster average response time at the following times:

2 PM

3 PM

4 PM

8 PM

Therefore, we can predict that if this pattern continues, their response time will be faster during those hours.

» What is the area?
10 mm
10 mm

Answers

Answer:

100mm

Step-by-step explanation:

Multiply the length times the width

Answer: 100 mm or 20 mm

Step-by-step explanation:  You ethier times it together or add it together

Hope this helps :)

What is the measure of XYZ?
A 93°
B 96°
C 186°
D 174°

Answers

Answer:

  A.  93°

Step-by-step explanation:

The inscribed angle has half the measure of the arc it subtends.

  ∠Y = 186°/2 = 93°

The measure of angle XYZ is 93°.

IM USING THE REST OF MY POINTS FOR THIS!!!!!! CLICK ON IMAGE TO SEE IT

Answers

Answer:

The Graph has a x- intercept at (3,0)

Step-by-step explanation:

-3 +3 =0

so x=-3

a 71.9%
b 18%
c 28.1%
39.1%

Answers

the answer is c 28.1%
The answer MIGHT be 28.1%

What is the product?
(6r-1)(-8r-3)
-4872-10r +3
- 48r2-10r-3
-48P?+ 3
-48r2-3

Answers

-48r^2−10r+3

Step-by-step explanation:

(6r-1)(-8r-3)

Apply the distributive property by multiplying each term of 6r−1 by each term of -8r−3

-48r^2−18r+8r+3

Combine -18r and 8r to get -10r.

-48r^2−10r+3

Therefore the product of this equation is -48r^2−10r+3

Hope this helps! If you have any more questions or you need further clarification on anything please comment down below. Good luck!

The value of the product of the expression is,

⇒ - 48r² - 10r + 3

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition

Given that;

The expression is,

⇒ (6r - 1) (- 8r - 3)

Now, We can multiply as;

⇒ (6r - 1) (- 8r - 3)

⇒ - 48r² - 18r + 8r + 3

⇒ - 48r² - 10r + 3

Thus, The value of the product of the expression is,

⇒ - 48r² - 10r + 3

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What is the value of x in the equation 1,331 x ^3 − 216 = 0?

A. -6/11

B. 11/6

C. 1/6

D. 6/11 (correct)

Answers

Answer:

choice D . x = 6/11

Step-by-step explanation:

1,331 x ^3 − 216 = 0?

11^3 = 1331

6^3 = 216

(11x)^3 - 6^3  = 0

We have   (11x - 6) * ( (11x)^2  + 6*(11x ) + 36) = 0

Solve  11x - 6 = 0

x = 6/11

Multiply (2x^2-3x+1)*(x^2-4x-3)

Answers

[tex](2 {x}^{2} - 3x + 1)( {x}^{2} - 4 - 3) = \\ = 2 {x}^{4} - 8 {x}^{2} - 6 {x}^{2} - 3 {x}^{3} + 12x + 9x + {x }^{2} - 4 - 3 = \\ = 2 {x}^{4} - 3 {x}^{3} - 13 {x}^{2} + 21x - 7[/tex]

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