A bag has 5 yellow marbles, 3 red marbles, and 2 blue marbles. Quinn randomly picks a marble from the bag and returns it before another is picked. How many times would Quinn expect to a blue marble if he picks a marble 200 times
Answer:
He would expect to see the blue marble 40 times. Hope this helps!
Step-by-step explanation:
Answer:
40 blue marbles
Step-by-step explanation:
You would find the probability of a blue marble
2 blue/ ( 5+3+2) total
2 divided by 10 is 1/5
Then, you multiply 200 and 1/5 together, which would equal 40.
Quinn should expect to pick 40 blue marbles.
What is the unit price for trail mix if a 8 ounce bag cost $2.80.
Brainliest ??? HELP
Answer:
D
Step-by-step explanation:
Can someone explain how to work this out?
Step-by-step explanation:
2.
(13y)° and (8x+y)° are supplementary angles on a straight line therefore:
13y+8x+y=180°
14y+8x=180°——equation 1
Again,
(13y)° and (20x+3y)° are corresponding angles therefore are equal so:
13y=20x+3y
13y-3y-20x=0
10y-20x=0——equation 2
Now we find the value of x and y using the system of equations
Thus,we solve :
14y+8x=180°
10y-20x=0
Solving them,x=5 and y=10
3.We use the same approach for this
3(x+y)° and 5x are corresponding angles and are equal therefore:
3x+3y=5x
3x-5x+3y=0
-2x+3y=0——equation 1
Again,(5x)° and (4x-9)° are supplementary angles on a straight line so:
5x+4x-9=180
9x-9=180°
9x=180+9
9x=189°
x=21
Plug in the value of x into equation 1 for y
-2x+3y=0
-2(21)+3y=0
-42+3y=0
3y=42
y=42/3=14
So x is 21 and y is 14
Part A How can you find the magnitude of a vector , where the horizontal change is x and the vertical change is y?
Step-by-step explanation:
The magnitude of the 2D vector is sqrt[x² + y²].
wrong answer sorry bout that
Anna is plotting points for a rectangle in the coordinate plane. She plots (4, -3), (4, 0), and (-2, 0). Which could be the coordinate pair that Anna plots in the third quadrant?
a) (2,3)
b) (-2,3)
c) (2,-3)
d) (-2,-3)
WILL GIVE BRAINLIEST TO 1st ANSWER PLEASE HELP!
Which set of pairs is linear and non-linear
1. (2,1), (3,4), (5,6), (2, 7)
2 (3,1), (−3, 1), (0,1), (5,1)
3 (1,1), (2,2), (3,3), (4,4)
4. (4,1), (6, 7), (8, 9), (4,7)
(2,4), (2,5), (2,6), (2,8)
Answer: 1. Not linear. 2. Linear. 3. Linear 4. Not Linear. 5. Linear.
Step-by-step explanation:
Alison swims 75 feet in 12 seconds. What is he rate to the nearest mile per hour? Please explain all the steps.
Answer:
32. 74
Step-by-step explanation:
Round money monetary answers to the nearest cent. ... using the Distributive Property and explain each step. ... Alison has $9.70 in dimes and quarters. ... It takes him 2.4 hours to get to Seattle, driving at 15 miles per hour faster than the.
A store owner paid $15 for a book , she marked up the price of the book by 40% to determine its selling price . What is the selling price in dollars of the book ?
If you apply these changes to the linear parent function, f(x)=x, what is the equation of the new function? Vertically compress by a factor of 4. Reflect over the x-axis . A. G(x) = 4 - x B. G(x) = - 1/4 * x C. G(x) = 1/4 * x D. G(x) = - 4x
Given:
The linear parent function, f(x)=x is vertically compressed by a factor of 4 and reflected over the x-axis.
To find:
The new function.
Solution:
The vertical stretch and compression is defined as
[tex]g(x)=kf(x)[/tex]
If k>1, then f(x) vertically stretched by factor k and if 0<k<1, then f(x) vertically compresses by factor [tex]\dfrac{1}{k}[/tex].
In the given problem, linear parent function, f(x)=x is vertically compressed by a factor of 4. So, [tex]k=\dfrac{1}{4}.[/tex]
[tex]g(x)=\dfrac{1}{4}f(x)[/tex]
Then, it is reflected over the x-axis.
[tex]G(x)=-g(x)[/tex]
[tex]G(x)=-\dfrac{1}{4}f(x)[/tex] [tex][\because g(x)=\dfrac{1}{4}f(x)][/tex]
[tex]G(x)=-\dfrac{1}{4}x[/tex] [tex][\because f(x)=x][/tex]
So, the new function is [tex]G(x)=-\dfrac{1}{4}x[/tex].
Therefore, the correct option is B.
Answer:g(x)=-1/4x
Step-by-step explanation:
Select Rational or irrational to classify each number
Find the equivalent expression for (x+7)(x+1)
Answer:
x^2 + 8x + 7
Step-by-step explanation:
We can see this expression as two distributive property expressions:
(x+7)(x+1) = x(x+1) + 7(x+1)
We can then expand and combine like terms:
(x^2 + x) + (7x + 7) = x^2 + 8x + 7
We have our final answer. I hope this helps! :)
Find the slope:
(1,3) (4,9)
Answer:
m =2
Step-by-step explanation:
slope formula is m= y2-y1/x2-x1
m= 9-3/4-1
m= 6/3
m= 2
Answer:
I think its 2,7
Step-by-step explanation:
HELP ME. It takes 12 hours to paint a 10-ft-by-18-ft mural. At this rate, how long will it take
the same number of people to paint the same mural on a 15-ft-by-27-ft wall?
The chart below shows the density of three different liquids. Which illustration correctly shows how these liquids would appear if they were poured slowly into a cylinder?
Answer:
A
Step-by-step explanation:
Though i am unable to attach an image of the question here. However, i will do my best to explain quite well.
The densities of the liquids are;
A - 13.6 g/ml
B- 0.8 g/ml
C- 1.0 g/ml
The most dense liquids will be found at the bottom while the least dense liquid is topmost liquid. This implies that A will be found at the bottom followed by C and finally B.
9. Two neighboring schools use different models for anticipated growth in enrollment: School A has 850 students and predicts an increase of 100 students per year. School B also has 850 students, but predicts an increase of 8% per year.
Complete question :
Two neighboring schools use different models for anticipated growth in enrollment: School A has 850 students and predicts an increase of 100 students per year. School B also has 850 students, but predicts an increase of 8% per year. Compare the models.
Answer:
y = 850 + 100x
y = 850 + 1.08^x
Step-by-step explanation:
SCHOOL A:
Initial Number of students = 850
Increase per year = 100
SCHOOL B:
Initial Number of students = 850
Increase per year = 8%
Let the total number of students after x years = y
Hence,
SCHOOL A:
y = initial population + 100 * Number of years
y = 850 + 100x
SCHOOL B:
Using the growth rate relation
y = initial population + (1 + rate per year)^number of years
y = 850 + (1 + 0.08)^x
y = 850 + 1.08^x
The following table shows a proportional relationship between mmm and nnn.
mmm nnn
333 212121
555 353535
888 565656
Write an equation to describe the relationship between mmm and nnn.
Answer:
n=7m
Step-by-step explanation:
this answer is good on khan academy
The equation to describe the relationship between m and n will be n = 7m.
What is constant of proportionality?Firstly, there is proportional relationship.
Two values x and y are said to be in a proportional relationship if x=ky, where x and y are variables and k is a constant.
The constant k is called constant of proportionality.
In order to find an equation between n and m by dividing n/m
m = 3, n = 21
n/m = 21/3 = 7
n = 7m
Now, check using the other two points
m = 5, n = 35
n/m = 35/5 = 7
n = 7m
m = 8, n = 56
n/m = 56/8 = 7
n = 7m
Hence, The equation to describe the relationship between m and n will be n = 7m.
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In order to prove the triangles pictured below as congruent BY SAS, we would need to know ___
a. AB≅AD
b. angle BAC≅angle DAC
c. angle ABC≅angle ADC
d. angle BCA≅angle DCA
Answer: D
Step-by-step explanation: i got it right
You invest $1700 in an account that earns 1.3% interest compounded daily. Write an equation to model the amount of money at any given time.
Please give an explanation but detailed as possible. I would like to learn how to solve word problems like these and improve on my math. I wan to get better so I can peruse my dream of being an engineer, and math is an important concept to it, so I would highly appreciate some help so I can learn :D
the equation goes like this
y = ab^x
y = total cost
a = the intital amount (in your case the $1700)
b = the interest (since this is an exponetial growth it should be 1.013)
x = time
soo y = 1700(1.013)^x is the equation
If a $1000 computer is marked off 35%, what is the sale price?
A) $300
B) $350
C) $650
D) $1350
What I did was I took the $1000 and subtracted the percent off (35% equals 350)
[tex]1000 - 350 = 650[/tex]
The total cost of the sale price is $650 (C)
Thank you! btw can i please get brainly :3
Answer:
650
Step-by-step explanation:
1000-350=650
Which table of ordered pairs represents a proportional relationship?
A 2-column table with 3 rows. Column 1 is labeled x with entries negative 3, negative 4, negative 5. Column 2 is labeled y with entries 3, 2, 1.
A 2-column table with 3 rows. Column 1 is labeled x with entries negative 1, negative 3, negative 5. Column 2 is labeled y with entries 1, 3, 5.
A 2-column table with 3 rows. Column 1 is labeled x with entries negative 2, negative 4, negative 6. Column 2 is labeled y with entries negative 5, negative 7, negative 9.
A 2-column table with 3 rows. Column 1 is labeled x with entries negative 2, negative 3, negative 4. Column 2 is labeled y with entries 0, negative 1, negative 2.
Answer:
A 2-column table with 3 rows. Column 1 is labeled x with entries 14, 28, 42. Column 2 is labeled y with entries 2, 4, 6.
Step-by-step explanation:
Examining the response options:
A 2- compartment chart with 3 rows. Column 1 is designated x with records 1, 5, 6. compartment 2 is designated y with records 5, 20, 30.
No, as y = 25 not 20 and x = 5 .
A 2- compartment chart with 3 rows. Column 1 is identified x with approaches 48, 32, 16. compartment 2 is designated y with listings 4, 2, 1.
No, y =64 not 48 and x= 4.
A 2- compartment chart with 3 lines. compartment 1 is designated x with records 0, 1, 3. compartment 2 is designated y with records 90, 70, 25.
No, y= 25+3*45= 160 not 90 and x = 3.
A 2- compartment chart with 3 lines. compartment 1 is designated x with records 42, 28, 14. compartment 2 is designated y with records 2, 4, 6.
Yes, as 2*7 = 14, 4*7= 28, 6*7= 42.
Answer:
C
Step-by-step explanation:
Did the quiz! :D
D
Question 9
1 pts
The amount of money you collect after washing x cars at a car wash and asking for
donations is represented by the function y = 8x + 19.
Find the domain of the function and determine whether it is discrete or continuous.
A) x= 8, 9, 10, ...; discrete
B) x=0,1,2,...; discrete
C) x > 0; continuous
D) x > 8; continuous
Answer:
B) x=0,1,2,...; discreteStep-by-step explanation:
Given
Function y = 8x + 19x is the number of cars so it should be a whole number so the domain is discrete
Correct option is B
Find the value of each variable that makes the equation true.
1. 89 = 1
2. 94.9-6 = 96
3. 5-3.2-3 = 100
The rabbit population in a certain area is 300% of last year's population. There are 900 rabbits this year. How many were there last year? *
A - 300 rabbits
B - 2,700 rabbits
Answer:
-300
Step-by-step explanation:
How much will a 100% affect my grade if I have 42%
please I got a 0 and it dropped my grade by half and if I have an F I have to go in person
Hi!
So your grade depends on how much the 2 scores are weighted.
BUT, if the 42 and 100 have equal weights of 50/50, you will have a 71% C
If the 100 isn't weighted that much, I'd guess it'd be around 75/25, your grade will be a 56% F
Try to get as many high grades or extra credits as possible!
Please mark brainliest and ask more if you need help!
Micah is building a structure that requires 3 pieces of wood each measuring 834 feet and 4 pieces of wood each measuring 1058 feet. What is the total length of wood, in feet, that Micah needs?
Answer:
834*3 + 1058*4 = ___
2,502 + 4,232 = 6,734 feet of wood
Step-by-step explanation:
Answer:
6734 is the answer.
Step-by-step explanation:
834 x 3 = 2502.
1058 x 4 = 4232.
2502 + 4232 = 6734.
Marcus bought a booklet of tickets to use at the amusement park. He used 50% of the tickets on rides, 13of the tickets on video games, and the rest of the tickets in the batting cage. Marcus says he used 10% of the tickets in the batting cage. Do you agree? Explain.
Given :
Marcus bought a booklet of tickets to use at the amusement park.
He used 50% of the tickets on rides, 13% of the tickets on video games, and the rest of the tickets in the batting cage.
To Find :
Marcus says he used 10% of the tickets in the batting cage.
Solution :
We know sum of all the percentage should be equal to 100.
So,
( % used on rides ) + ( % used on video game ) + ( % used in batting cage ) = 100
Let, % of ticket spend on batting cage is x.
50 + 13 + x = 100
x = 100 - ( 50 + 13 )
x = 37%
So, Marcus used 37% in batting cage.
Therefore, the statement by Marcus that he use 10% of the ticket in the cage is wrong.
No, i do not agree. To find this out, we will have to convert all of them into either decimals or percents. Let's convert these all into percents. A percent means 'out of 100', so if we add the percents all together, they should equal to 100. The rides is 50%. To convert 1/3 into a percent, divide the numerator by the denominator. You will get a decimal, so then multiply that by 100 or move the decimal two places to the right. So, 1 divided by 3 is equal to approximately 33%. Let's add 50 and 33 together. The total is 83%. So, like I said, a percent is out of 100. Subtract 83 out of 100 and you will get 17. So, the remaining percent has to be 17 percent, not 10%.
Hope it helps :)
Someone able to solve this ? Please
What is the value of x? There is isosceles triangle. The measure of angle which is between two congruent sides is (6x+10⁰). The measures of other angles are (x+17⁰) and (4x-34⁰).
x=17
step-by-step Explanation:-[tex]{\boxed{\quad\:\mapsto\rm Firstly\:Let's\:understand\:the\:concept:-}}[/tex]
This is a isosceles triangle. As it is a triangle we can apply sum theory. we have to take the sum of given unknown polynomials as 180° .Then by solving it we can find the value of x.
Solution:-Given angles
(6x+10°)(x+17°)(4x-34)°According to sum theory
[tex]{\boxed{\sf The \:sum\:of\:angles=180°}}[/tex]
Substitute the values[tex]\qquad \quad{:}\longmapsto\tt (6x+10)+(x+17)+(4x-34)=180 [/tex]
Remove brackets[tex]\qquad \quad{:}\longmapsto\tt 6x+10+x+17+4x-34=180 [/tex]
Together like polynomials and constants[tex]\qquad \quad{:}\longmapsto\tt 6x+x+4x+10+17-34=180 [/tex]
[tex]\qquad \quad{:}\longmapsto\tt 11x-7=180 [/tex]
Interchange sides[tex]\qquad \quad{:}\longmapsto\tt 11x=180+7 [/tex]
[tex]\qquad \quad{:}\longmapsto\tt 11x=187 [/tex]
[tex]\qquad \quad{:}\longmapsto\tt x=\cancel{\dfrac{187}{11}}[/tex]
Simplify[tex]\qquad \quad{:}\longmapsto\tt x=17[/tex]
[tex]\therefore\sf The \:value\:of\:x\;is\:17.[/tex]
What is the solution to this system of equations?
10
8
6
y = x + 6
y = -0.5x + 3
4 2
2
O A. (-1,2)
OB. (-2,4)
O C. (2, -1)
O D. (4,-2)
Answer:
it is B
Step-by-step explanation:
Look at where both of the lines meet from there you can find that (-2,4) is the solution
The solution to the system of equations is (x, y) = (-2, 4).
Option B is the correct answer.
What is an equation?An equation contains one or more terms with variables connected by an equal sign.
Example:
2x + 4y = 9 is an equation.
2x = 8 is an equation.
We have,
We can solve this system of equations by setting the expressions for y equal to each other and solving for x, then substituting the value of x into one of the equations to find the corresponding value of y.
y = x + 6 ...(1)
y = -0.5x + 3 ...(2)
Setting equations (1) and (2) equal to each other gives:
x + 6 = -0.5x + 3
Solving for x, we get:
x + 0.5x = 3 - 6
1.5x = -3
x = -2
Substituting x = -2 into equation (1), we get:
y = -2 + 6
y = 4
Therefore,
The solution to the system of equations is (x, y) = (-2, 4).
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