Tickets to a concert cost $2 for children, $3 for teenagers and $5 for adults. When 570 people attended the concert, the total ticket receipts were $1950. Three-fourths as many teenagers as children attended. How many adults attended?

Answers

Answer 1

Answer: 220

Step-by-step explanation:

Children (x): $2

Teens (y): $3, [tex]\frac{3}{4}x[/tex]

Adults: (z): $5

Quantity: x + y + z = 570  ⇒  x + [tex]\frac{3}{4}x[/tex] + z = 570  ⇒ 1.75x + z = 570  

Cost: 2x + 3y + 5z = 1950  ⇒  2x + 3[tex](\frac{3}{4}x)[/tex] + 5z = 1950  ⇒  2x + 2.25x + 5z = 1950  ⇒  4.25x + 5z = 1950

Qty:    1.75x +  z =  570  →  5(1.75x +  z =  570)  →    8.75x + 5z = 2850

Cost: 4.25x + 5z = 1950 → -1(4.25x + 5z = 1950 → -4.25x - 5z = -1950

                                                                                  4.50x        =   900

                                                                                          x       =    200

Teens (y): [tex]\frac{3}{4}x[/tex]

           y = [tex]\frac{3}{4}(200)[/tex]

             = [tex]\frac{600}{4}[/tex]

             = 150

Quantity: x + y + z = 570  

              200 + 150 + z = 570

                     350     + z = 570

                                    z = 220



Related Questions

John has $132.55 in his bank account. He wants to join a guitar class that charges a $15 fee every week. John plans to take the class for 12 weeks. If John pays for 12 weeks of guitar classes from his account, his account balance will be what?

Answers

He dosnet have enough money. To have 12 weeks of guitar classes he needs 180 dollars.
(this is probably wrong, sorry) -1.297...

Mike and his bestfriend dan have the same birthday, but mike is three years older than dan. Let the variable x represent mikes age and y represent dans age. Which graph represents the relationship between Dans age and Mikes age ?

Answers

x=Mike's age

y=Dan's age

It is given that,Mike is three years older than dan.

x=y+3

If you will draw the graph of the function, it will cut x axis at (3,0) and y axis at (0,-3).

⇒Graph-2

The graph that represents the relationship between Mike's age and Dan's age (y), is Option A with a positive slope of 1.

Relationship between Dan and Mike's age

The relationship between Dan's age and Mike's age can be represented by a linear equation, where Mike's age (x) is three years older than Dan's age (y).

Therefore, the graph that represents this relationship would be a straight line with a positive slope of 1 and a y-intercept of -3.

The equation for this relationship would be:

x = y + 3

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Assignment: Function Equations Investigation

Create matching cards for these linear functions. Each column will have three representations of the same function. One representation is given to you; you must use it to complete the other representations in the column. Type in the table values and equations. To complete the graphs, use the draw feature in your word processor or print the assignment and scan or take a picture of the completed graphs to submit.

Answers

Function 1:

For the given table

[tex]\begin{array}{cc}x&f(x)\\-2&-2\\-1&1\\0&4\\1&7\end{array}[/tex]

you can plot the graph of the function (see first attached diagram). This function is linear and has equation f(x)=3x+4.

Function 2:

For the given function f(x)=-2x+3 you can create a table

[tex]\begin{array}{cc}x&f(x)\\-2&7\\-1&5\\0&3\\1&1\end{array}[/tex]

and plot the graph (see second attached diagram).

Function 3:

For the given graph of the function, you can find the function:

[tex]\dfrac{x-0}{6-0}=\dfrac{y-(-3)}{0-(-3)},\\ \\\dfrac{x}{6}=\dfrac{y+3}{3},\\ \\2(y+3)=x,\\ \\y=\dfrac{1}{2}x-3.[/tex]

Thus, the equation of the function 3 is [tex]f(x)=\dfrac{1}{2}x-3.[/tex]

The table will take a look

[tex]\begin{array}{cc}x&f(x)\\-2&-4\\-1&-3.5\\0&-3\\1&-2.5\end{array}[/tex]



Final answer:

The question deals with linear functions representation.For each given linear representation, create two additional: table values and a graph. Use the given information, like equation or table values or a graph, to calculate other forms.

Explanation:

This assignment deals with creating matching cards for linear functions. For each linear function, you'll need to obtain two additional representations. Firstly, you should find the table of values which means identifying various x and y values that satisfy the function. For instance, if your given function is y = 2x + 3, just substitute different values into x and find the corresponding y-values.

Second is to derive the graph. You can do this by plotting the points you obtained for your table of values on a graph. You'll notice that all these points will fall on a straight line as it is a linear function.

The provided representation will guide you while creating your table and graph. For instance, if you are given the equation, figure out the slope and y-intercept because they're crucial to draw the graph and construct the table.

If presented with the table values, find the rate of change, which will be the slope, and a point on the table which gives you the y-intercept and hence give you an equation. Finally, if given a graph, find two points on the line then apply the slope-intercept form to find your equation and table values.

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Which of the following is a method used to solve systems of equations? A. Substitution B. Graphing C. Gaussian elimination D. All of the above

Answers

Graphing, Substitution Method and Elimination Method

The method that is used to solve systems of equations is D. All of the above.

Based on the information, it should be noted that the substitution method, graphing, and the Gaussian elimination can all be used to solve a system of equations.

The graphing method is the use of graphs. Substitution and Gaussian elimination methods are typically used to find the variables in a simultaneous equation.

Therefore, the correct option is all of the above.

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Find the common difference in the outputs to help find the missing outputs in the table


ɑ 5 6 7 8 9
b 3.8 4.6 5.6 ? ?

Answers

we have been given table containing 6 points.

let the numbers at question mark (?) are x and y respectivelly so we can rewrite the table as:

[tex]\left[\begin{array}{cccccc}a&5&6&7&8&9\\b&3.8&4.6&5.4&x&y\end{array}\right][/tex]

In the first row we see that numbers increase by 1 so that clearly means a=4.

Now we need to find the common difference in the outputs to help find the missing outputs in the table.

4.6-3.8=0.8

5.4-4.6=0.8

we are getting common difference of 0.8 so that means missing values can be found by adding or subtracting 0.8 as per their position.

b=3.8-0.8=3

x=5.4+0.8=6.2

y=6.2+0.8=7

Hence the final answer is given by table:

[tex]\left[\begin{array}{cccccc}4&5&6&7&8&9\\3&3.8&4.6&5.4&6.2&7\end{array}\right][/tex]


Polynomial Equations word problem
(Screenshot included)

Answers

If the width is 3 less than the height, we can say that the width is x, and the height is x+3. As the tank is square based, we can say that the length is also x. If the tank has a capacity of 20, this is the volume of the tank. Using the formula for volume, we get (x)(x)(x+3)=20. We multiply this out to get x^3+3x^2=20. If we think this one through, we can realize that 2 works for x, as 8+12 = 20. This means that the dimensions are 2 by 2 by 2+3, or 5.

An animal shelter currently only has 30 dogs and 20 Cats. What is the ratio cats to animals?

Answers

hello!

30:20
this could be simplified to
15:10
and further simplified to
3:2

I hope this helps!~~♡♡ Chyna

Answer: 3:2

Step-by-step explanation:

Given : An animal shelter currently only has 30 dogs and 20 Cats.

i.e. Number of dogs = 30

Number of cats = 20

Then, the ratio of cats to animals is given by :-

[tex]\dfrac{\text{Number of cats}}{\text{Number of animals}}\\\\=\dfrac{30}{20}\\\\=\dfrac{3}{2} \ \ \text{[By dividing 10 in the numerator and denominator]}[/tex]

Therefore, the ratio of cats to animals = 3:2

9x^2+4y^2+54x+8y-59=0
An ellipse in that needs to be in standard form
Please explain how to do

Answers

The standard form of an ellipse is

[tex] \dfrac{(x-x_0)^2}{a^2}+\dfrac{(y-y_0)^2}{b^2}=1 [/tex]

Let's try to complete some squares: if we focus on the part involing x, we have

[tex] 9x^2+54x = 9x^2+54x+81-81 = (3x+9)^2-81 = 9(x+3)^2-81 [/tex]

Similarly, for the part involving y, we have

[tex] 4y^2+8y = 4y^2+8y+4-4 = 4(y+1)^2-4 [/tex]

So, the equation becomes

[tex] 9(x+3)^2-81 + 4(y+1)^2-4 - 59=0 \iff 9(x+3)^2+ 4(y+1)^2-81-4-59=0 \iff 9(x+3)^2+ 4(y+1)^2 = 144 [/tex]

Divide both sides by 144 to get

[tex] \dfrac{(x+3)^2}{16}+ \dfrac{(y+1)^2}{36} = 1[/tex]

which is the standard form

Answer:

D

edge

Step-by-step explanation:

Please help with this one...

One of the fastest recorded speeds of an alligator on land is 8.8 m/s. Approximately, what is this speed in kilometers per hour? [1 kilometer = 1,000 meters] [1 hour = 60 minutes = 3,600 seconds]

A 2.444 km/h
B 6.336 km/h
C 31.68 km/h
D 0.244 km/h

Answers

Here we are given the speed in meter per second as 8.8 m/s.

Now we have to convert this speed into kilometers per hour.

We are also given :

1 kilometer = 1000 meters and

1 hour = 60 minutes = 3,600 seconds

Now let us convert 8.8 m/s into km/h

1 m/ sec = (1/1000) km / (1/3600) hr

1 m/ sec = 18/5 km /hr

8.8 m/ sec = (18/5) * 8.8 km /hr

8.8 m/ sec = 31.68 km/h

Answer: So the speed in kilometers per hour is 31.68 km/hr. (option C)


Subtract. 405,000,000-1.7×10^8

Answers

405,000,000 - 1.7×10^8

= 4.05 × 10^8  - 1.7 × 10^8

= (4.05 - 1.7) × 10^8

= 2.35 × 10^8

Hope it helps

Can you check my paper? If I got any wrong please tell me the correct answers.

Answers

There is a lot to go over here. Unfortunately it looks like you got a lot incorrect. I'll focus on two problems. Hopefully these examples below will help correct the other mistakes.

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

Problem 7)

We have the starting value be 20 and the ending value be 11. Subtract the values: (end)-(start) = 11 - 20 = -9. The negative indicates we have a drop or decrease.

We'll focus on the positive version of this number, so 9. Divide this value over the starting amount 20 to get 9/20 = 0.45 = 45%

So going from 20 miles to 11 miles is a decrease of 45%

Answer to problem 7 is: 45%

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

Problem 13)

An increase of 300% means we added 3 times the original amount onto the original amount.

We take 300% of 25 to get 3*25 = 75

Which is then added onto 25 to get 25+75 = 100

Answer to problem 13 is: 100

(05.05)On the coordinate plane below, what is the length of AB?

Answers

the lenght of the picture is 14

1/9(x+18)+1/3(2x+3)=x+3

Answers

First : Distributive Property

(1/9∙x)+(1/9∙18)

1/9x+18/9

(1/3∙2x)+(1/3∙3)

1/9x+2+2/3x+1=x+3

Second : Rearrange

1/9x+2/3x-x+3-2-1

Third : Solve!                    :D

-7/9x=0

7/9x=0

x=0

in a sequence, the first term is 1 and the second term is 2. each additional term is equal to the sum of all previous terms. what is the value of the first term in this sequence that is greater than 100? a. 101 b. 109 c. 128 d. 144 e. 192

Answers


Solution

The general form of the n-th term = a + (n-1)d

Here we are given the 1st term (a) = 1

2nd term = 2

So the sequence is

1, 2, 3, 4, 5 , 6, 7, 8, ....................100, 101, 102....

The value of the first term in this sequence that is greater than 100 is 101.


Answer is a. 101


The product of 10 and m is less than 22

Answers

If you want an inequality, it would be 10m≤22 but the sign doesn't have a line under it

(couldn't find the one without the line)

If you want to solve then m≤2.2 and the line isn't under the sign

Which is a factor of 6x^3y+6xy-12x^2-12

Answers


6x³y + 6xy − 12x² − 12 = 6(xy-2) * (x²+1)


(x²+1) is a factor of 6x³y + 6xy − 12x² − 12

Simplify.
8^-4
8-^10 thats a fraction to
A) 8^-14
B) 8^-6
C) 8^6
D) 8^14

Answers

We have 8^(-4) over 8^(-10). The bases are both 8, so we subtract the exponents (numerator minus denominator).

[tex]\frac{8^{-4}}{8^{-10}} = 8^{-4-(-10)} = 8^{-4+10} = 8^{6}[/tex]

The final answer is choice C) 8^6

The radius of a circle is 2 millimeters.what is the circles circumference ?

Answers

So if the radius is 2 then the diameter is 4 since the radius is half of diameter. Circumference is 3.14.
3.14× 4 =12.56

Answer is provided in the image attached.

A retiree invests 3,000 in a savings plan that pays 3% per year what will the account balance at the end of the first year

Answers

3000*.03= 90 so your balance would be 3000+90=$3090

If the outlier is removed, what is the mean of the data set below

Answers

Based on the data set: 21, 23, 19, 25, 83, 23, 21...83 is clearly the outlier

To find the mean, all we have to do is add up all the remaining numbers (since we got rid of the 83) then divide them by how many numbers were added

21 + 23 + 19 + 25 + 23 + 21 = 132

Now we divide 132 by how many numbers were added (6)

132 ÷ 6 = 22

Therefore, the mean of the data set is 22

Hope this helps you

-AaronWiseIsBae

(y^2)^3 = rewrite the expression in the form of y^n

Answers

When multiply two power expressions, that both have the same base, we can simply add the exponents.

 

For the first image that you provided:

y^(3/4) x y^(1/3) = y^(3/4 + 1/3) = y^(9/12 + 4/12) = y^(13/12)

 

Let me know if you have any further questions!

Plz mark as brainliest

Final answer:

The expression (y^2)^3 can be rewritten as y^6 using the rule of exponents that states when you raise a power to a power, you multiply the exponents.

Explanation:

The expression (y^2)^3 can be rewritten in the form of y^n using the rule of exponents which states that when you raise a power to a power, you multiply the exponents.

Here, we have y raised to the power 2, and that result is being raised to the power 3. We multiply these exponents together (2*3) to get 6. Thus, the rewritten expression is y^6.

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3x^2-28=2×^2+33 solving for x

Answers

3x^2-28=2x^2+33
3x^2-28-2x^2=2x^2+33-2x^2
x^2-28=33
x^2-28+28=33+28
x^2=61

[tex]x = \sqrt{61} [/tex]

A square pyramid has base edge length 10 cm. The slant height of the pyramid is 13 cm. What is the volume of the​ pyramid?

Answers

I believe it's 130 bcz when u MULTIPLE

Can someone help me to answer this plss..

The melting point of a lead-free solder alloy is 361°F. Your adjustable-temperature soldering iron is calibrated in °C. The soldering iron must be at least 100°C hotter than the solder melting point to work effectively. What is the minimum operating temperature for the soldering iron?

Answers

The melting point of most solder is in the region of 188 degree Celsius and the iron is typically temperature is 330 degree Celsius to 350 degree Celsius.

I am not sure what the answer is, so thanks for the free points?..

What is the length of the hypotenuse of the triangle? 26 ft 34 ft 68 ft 74 ft

Answers

the hypotenuse is found by A^2 +B^2=C^2
so
10^2 +24^2=C^2
100+576=C^2
676=C^2
so then we find the square root of 676 which is
26.
so C^2= 26

answer 26 ft

Answer: 26 ft.

Step-by-step explanation:

In the given picture, there is a right triangle.

The legs of the right triangles are 10 ft and 24 ft.

To find the length of hypotenuse, we use Pythagoras theorem, we get

[tex]H^2=10^2+24^2\\\\\Rightarrow\ H^2=100+576\\\\\Rightarrow\ H^2=676\\\\\Rightarrow\ H=\sqrt{676}\\\\\Rightarrow\ H=26\ ft[/tex]

Hence, the length of the hypotenuse = 26 ft.

Pythagoras theorem says that the square of the hypotenuseis equal to the sum of the squares of the other two sides.

Please help if you can! I’m trying to understand these.
Write an equation of the line in point slope form that passes through points (-15,7) and (5, -3)
y-7=1/2(x+15)
y+7=-2(x-15)
y-7=-1/2(x+15)
y+7=2(x-15)

Answers

Answer:

y - 7 = -1/2(x + 15)

Step-by-step explanation:

m = (7 + 3)/(-15 - 5)

m = 10/-20

m = -1/2

y - y₁ = m(x - x₁)

y₁ = 7; x₁ = -15

y - (7) = (-1/2)(x - (-15))

y - 7 = -1/2(x + 15)

Scott has 25 baseball cards in his collection. On his birthday, Scott’s grandfather gives him his collection of 100 baseball cards. Scott trades 50 of his cards at the baseball card shop. How many cards did Scott not trade?

Answers

Scott starts with 25 plus the 100 from his grandfather making 125 then subtract 50 that he traded so you get 75

QUICKLY!

The equation y = 43x represents the number of miles Alicia drives over time, where y is the number of miles and x is time in hours. This table shows the number of miles Trish drives over time.

How many miles does each woman travel per hour, and who drives at a slower rate?

Select from the drop-down menu to correctly complete the statements.

Answers

Answer:

Alecia drives at a slower rate than Trish, according to my math, too lazy to explain, please just believe me.

46 MPH for Trish.

Step-by-step explanation:


Please mark Brainliest!

Alecia drives at 43 mph and Trish drives at 46 mph. Alecia drives slower than Trish.

20 POINTS!!!!!!!!!! FIRST ANSWER OF BOTH GETS 5 STAR AND BRAINLIEST!
if f(x)=3x+1 Find the domain if the range x is 4 5 6
if f(x)=x+10 Find the domain if the range is x 10, 4, -6

Answers

f(x)=3x+1, range x={4,5,6} --> domain is a set of values {13, 16, 19}

f(x)=x+10, for x={10,4,-6} domain is a set of {4, 14, 20}

Find the missing number to complete this division fact. 63 ÷ ∎ = 9

Answers

the answer is 7 <------
If you do 63 x 9 = 567 so your answer is 567
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