Mathematics Middle School

Vincent flipped three coins during a probability experiment. The outcomes of the first 40 trials are shown in the table. Based on the information in the table, in how many of the next 120 trials will the outcome be exactly two of the coins showing heads?

Answers

Answer 1

Answer:

The number of next 120 trials will the result should be 48.

Step-by-step explanation:

Answer 2

The number of next 120 trials will the result should be 48.

What is Probability?

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.

The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.

The degree to which something is likely to happen is basically what probability means.

Given:

Total trials = 40 trials.

The 2 heads and 1 tail should be 16 outcomes.

And, there are the next 120 trails.

So, the fraction will be

= 16/40

= 2/5

Now, the number of the next 120 trails should be

= 2/5 x 120

= 48

Hence, the number of the next 120 trials will result should be 48.

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Related Questions

PLEASE HELP!!!! (+10 POINTS!!!!!!)

Answers

Answer: 0.75

a triangle is composed of 3 sides. ther are three types of triangles they are- isoceles, equilateral and scalene triangle. a triangle consists of a base and a hight. so the formula fir the area of a trianlge id half multiplied by the base multiplied by the height.

hence 1/2 * 2 * 3/4 = 0.75

0.75. Because the area formula is A=1/2bh. So it is A=1/2(2)(3/4) which equals 3/4 or 0.75

Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.

What is the mean number of minutes spent on the phone?

Answers

Answer: 31

Explanation:

The data from the stem-and-leaf plot is:

10,

24,25,26,

30,30,32,33,

40,45,46

Add up those values

10+24+25+26+30+30+32+33+40+45+46 = 341

Then divide over n = 11 which is the sample size.

341/11 = 31 is the arithmetic mean.

Answer:

341/11 = 31 is the arithmetic mean.

Step-by-step explanation:

(50% OFF of the original price) What is the sale price of a book of piano music originally priced at $14?

Answers

the answer is $7 because half of 14 is 7

Answer:

Step-by-step explanation:

50% is basically 1/2 so you would divide $14 by 2 and half of 14 is obviously $7 so when you do the math, you get your answer :)

Find −7/10−(−4/15) . Write your answer as a fraction in simplest form.

Answers

the correct answer is - 29/30

Use the best-fit line below to predict the value of y when x = 7

Answers

Answer:

the answer is 6 because when x=7 on the line it is also equal to 6 on the y axis

The answer to the question is 6

Which value is equivalent to the expression 2 to the 3rd power + 3 to the 4th power??

a) 18
b) 72
c) 78
d) 89

Answers

89 is the correct answer

Answer:

Step-by-step explanation:

2^3 + 3^4

=8 + 3^4

=8 + 81

=89

Could someone explain this?

Answers

The minimum and the maximum are the lowest and highest numbers that were all given to you, in this case, 4 would be the minimum and 50 would be the maximum

Min: 4
Max: 50

Answer:

You must find the maximum i.e. the highest score and the minimum i.e. the least score.

In the given question, the lowest score is 4.

the highest score is 50.

And there ya go!

Graph the linear equation with the given slope and y-intercept:

Answers

Answer:

Step-by-step explanation:

the y intercept determines where you are going to start and then your m or your slope tells you how many units up or down and left and right you are going to go or you rise over run in this case 2/1

so you start at (0,2) and then move 2 up and one to the right

and you go 2 units down and 1 to the left

Take the y-Intercept (0,2) and use your slope or M (2) and either go up 2 units and right 1 unit or down 2 units and left 1 unit. Or in other words (-1,0) or (1,4)

Drew tries to predict which restaurant will have at least amount of business during Christmas season. There are three restaurant in the city. Two are on the outskirts of the city and one is in the city. He learned that two hotels situated on the outskirts are fully booked because one has a huge indoor pool. From this information he inferred that the restaurant in the city will have the least amount of business during the Christmas season. What would have been an improvement in Drew's experiment?

A. ask people at the restaurant if they like fast food.
B. survey all people to see which December holiday they celebrate.
C. look at the past holiday performance of the restaurant.

Answers

B or C would be most logical in this case of study.

Which list orders the numbers from least to greatest?

Negative 2.4, negative 1.5, negative 2 and one-fourth, negative 3, negative 1 and one-eighth

A number line going from negative 4 to positive 4.
Negative 1 and one-eighth, negative 1.5, negative 2 and one-fourth, negative 2.4, negative 3
Negative 3, negative 2.4, negative 2 and one-fourth, negative 1.5, negative 1 and one-eighth
Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5
Negative 1.5, negative 1 and one-eighth, negative 2.4, negative 2 and one-fourth, negative 3

Answers

Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth

Hope my answer helps you✌️

Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5 is the list that orders the numbers from least to greatest.

If xx and y vary directly and y is 21 when x is 7, find y when x is 5

Answers

Answer:

y = 15

Step-by-step explanation:

We need to solve for k

y = x

21 = 7k Divide both sides by 7 to solve for k

3 = k

y = xk

y = 5(3)

y = 15

Answer: y = 15

Step-by-step explanation:

please help i need this bad

Answers

Answer:

Step-by-step explanation:

(answer needs to be at least 20 words long)

2) 3 (2.999)
3) 3 (2.958)
4) 2.86 ( 2.815)
5) 2.95 ( 2.949)
6) 3.14 (3.144)
7) 2.84 ( 2.841)

-3 + 6x. Which expression shows the correct factorization?
Here are the ones to pick from
1. -2 + -2 +6 +x
2. 6(-2 +x)
3. 6(-2 +x)
4. -3 (1 - 2x)

Answers

Answer:

Option #4

Step-by-step explanation:

Expand option #4

=-3(1-2x)

=-3 -2x*-3

=-3+6x which is what your original equation was.

becoz it is a multiple choice, we can go by elimination, hence when we expand #4, we will get -3+6x

Write 7^3 x 7^2 using a singular exponent.

Answers

Answer:

7^5

Step-by-step explanation:

The base number (7) is the same, so we can just add the exponents together.

Hope that helped!

To write 7^3 x 7^2 using a singular exponent, you can add the exponents together since the bases (7) are the same. The result is:

7^3 x 7^2 = 7^(3 + 2) = 7^5$\huge{\mathcal{\colorbox{black}{\textcolor{lime}{\textsf{I hope this helps !}}}}}$

♥️ $\large{\textcolor{red}{\underline{\texttt{SUMIT ROY (:}}}}$

Mathematics class of the 8th

Answers

Answer: It's A.

Step-by-step explanation:

Answer: a is right

Step-by-step explanation:

Find the quotient. 3/5 ÷ 2/3. Answer should be a fraction. *

Answers

The answer is 0.9 and if you divide it should be 9/10

You would need to multiply the first fraction with the reciprocal of the other The answer is then multiply the top by the bottom which would give you 9/10

A bag contains 16 blue marbles, 23 green marbles, and 13 red marbles. There are a total of 52 marbles in the bag.
If a marble is randomly selected from the bag, what is the probability that the marble is red?

Answers

Answer:

13/52

Step-by-step explanation:

its easy

Since there are 13 red marbles and 52 marbles in total, the answer would be 13/52. I hope this helped :)

Simplify without absolute value sign:

|x + 3|, if x > 2

Answers

Answer:

no i dont think i will

Step-by-step explanation:

The volume of this right prism is 240.5 ft³.

What is the height, x, of the prism?

Enter your answer as a decimal in the box.

x = (Answer) ft

Answers

Answer:

x = 7.4 ft.

Step-by-step explanation:

Find the area of the base (32.5ft^2) and divide the area by that to find the height (240.5/32.5= 7.4ft)

The height of the prism is 7.4 feet.

What is Volume?

Volume of a three dimensional shape is the space occupied by the shape.

Given is a right trapezoidal prism.

Area of the prism = Base area × Height of the prism

Base is trapezoid.

Base area = $\frac{1}{2}$ (8 + 5) 5

= 32.5 feet²

Height of the prism = Length between the bases = x feet

So we have,

32.5 x = 240.5

x = 240.5 / 32.5

x = 7.4 feet

Hence the height of the prism is 7.4 feet.

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A tart contains either 3 white, or 4 red, or 5 black cherries. A tray of 20 tarts contains 89 cherries. How many red cherries are on the tray if it contains 3 tarts with white cherries?

Answers

Let's use algebra to solve this problem. Let:

- x be the number of tarts with white cherries
- y be the number of tarts with red cherries
- z be the number of tarts with black cherries

From the problem, we know that each tart can only have one type of cherry. So we can set up the following system of equations:

x + y + z = 20 (the total number of tarts is 20)
3x + 4y + 5z = 89 (the total number of cherries is 89)

We also know from the problem that each tart with white cherries contains 3 cherries. So the total number of white cherries is 3x. We are looking for the number of red cherries, which is 4y.

To solve for y, we can use substitution. We can rearrange the first equation to get:

z = 20 - x - y

Then we substitute this expression for z in the second equation:

3x + 4y + 5(20 - x - y) = 89

Simplifying this equation, we get:

2x - y = -3

Now we can solve for y by isolating it on one side of the equation:

y = 2x + 3

We know that each tart with white cherries contains 3 cherries, so the total number of white cherries is 3x. We also know that each tart with black cherries contains 5 cherries, so the total number of black cherries is 5z. So we can rewrite the equation for the total number of cherries as:

3x + 4y + 5(20 - x - y) = 89

Simplifying this equation, we get:

2x - y = -3

Now we can solve for y by isolating it on one side of the equation:

y = 2x + 3

We know that each tart with white cherries contains 3 cherries, so the total number of white cherries is 3x. We also know that each tart with black cherries contains 5 cherries, so the total number of black cherries is 5z. So we can rewrite the equation for the total number of cherries as:

3x + 4y + 5(20 - x - y) = 89

Simplifying this equation, we get:
This text is generated by Ask AI! Download now: https://app.adjust.com/88t5kzu

I need this answer, please help

Answers

The answer is y = 75

What is the value of t?
-12 = 34 - 3
A-s
-1
1
3

Answers

The answers is A. -3

The answer is A, I believe.

Kara and Joe are planting wildflowers in their backyard flower garden. They bought a package of seeds with eight daisy seeds, thirteen sunflower seeds, and twelve bluebonnet seeds. Joe opens the package and plants one seed. What is the complement to the probability that Joe will plant a bluebonnet?

A. 18/33
B. 12/33
C. 13/33
D. 21/33

Answers

Answer:

B. 12/33

Step-by-step explanation:

Since there are 12 bluebonnets and 30 seeds in total, the ratio will be 12:33.

Answer:

Step-by-step explanation:

First you have to see how many seeds will be in total. There are 33 seeds in total and there are 12 bluebonnet seeds. I believe it would be 12/33

What steps would you take in order to solve the equation 1/2m + 61 = 39 ?

add 61 and multiply by 1/2
add 61 and multiply by 2
subtract 61 and multiply by 1/2
subtract 61 and multiply by 2

Answers

D. Subtract 61 and multiply by 2

Answer:

D. Subtract 61 and multiply by 2 to get your answer.

Step-by-step explanation:

i need help pls help

Answers

x is 5 cus in right triangle if it is 30* the ab^2=ac^2+cb^2 x was ab/2

Answer:

x is 5

Step-by-step explanation:

1.3 lesson help please

Answers

Answer:

1. 125

2. 25

3. 40

4. 39

First question:

(15-10)^2 + (15-5)^2

parentheses first to get 5^2 + (15-5)^2

exponents next to get 25 + (15-5)^2

parentheses again 25 + 10^2

exponents again 25 + 100 = 125

Second question:

simplify the exponents (3 *3) + (4 * 4) + (2 * 2) to get 9 + 16 + 4 = 29

Third question:

simplify in the parentheses 6 1/7 - 1/7 = 6

divide 60 by 6 to get 10

multiply 10 by 4 to get 40!

Fourth question:

simplify the fractions to get 1/3 + 8/3 = 3

multiply the 3 by 13 to get 39

Answer:40

Explanation:easy

Please Hurry. I need this answer quickly please.

Answers

Answer:63

Step-by-step explanation:

multiply 72 by 7 then divide i by 8

(72×7)/8

=63

It's 63.

simplify the equation 7/8×72 multiple 7×9 solution is 63

nancy is 5 years younger than her brother stan. last year she was half as old he was. how old is each of them now? PLS HELP

Answers

nancy is 6 and stan is 11

Please help me with this

Answers

Answer:

Step-by-step explanation:

15% of 140 = 21

A chemist prepares two acid solutions.

Solution 1
3 parts sulfuric acid to 7 parts water

Solution 2
4 parts sulfuric acid to 9 parts water

a. Use a ratio table to determine which solution is more acidic.

Solution 1 Solution 2
Water Sulfuric Acid
Water

Sulfuric Acid
7
9
21
18
42
45
63
63
Question 2
Solution
has the greater concentration.

Question 3
b. Use a graph to determine which solution is more acidic.
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Both graphs begin at $($ Response area, Response area $)$ . The graph for solution Response area is steeper, so it has Response area concentration of acid.

Answers

Answer:

Check Description for answer

Step-by-step explanation

do it urself

Answer:

A) solution 2 is more acidic than solution 1

Step-by-step explanation:

A chemist prepares two acid solutions:

Solution 1: 3 parts sulfuric acid to 7 parts water

Ratio of sulphur to water: 3/7 (3:7)

Solution 2: 4 parts sulfuric acid to 9 parts water

Ratio of sulphur to water: 4/9 (4:9)

___________________________________________________

Part A: (using ratios to determine which solution is more acidic)

First we make same denominator, since the denominators are 9 and 7, we have to find the lcm (lowest common multiple) they both have with is 63. To do that, we must multiply the denominators with either 7 or 9.

Solution 1: Numerator (3) multiplied by 9 and then denominator (7) multiplied by 9. This makes out fraction/ratio 27/63

Solution 2: Numerator (4) multiplied by 7 and then denominator (9) multiplied by 7. This makes out fraction/ratio 28/63

Since 28/63 (or just 28) is a larger quantity than 27/63 (or just 27) this means solution 2 is more acidic than solution 1.

Mathematical Line (Not sure what you would call this lol): 28 > 27

Part B: (Let 'y' amount of sulfuric acid mix with 'x' amount of water)

Equation of solution 1: y = 3/7x

Equation of solution 2: y = 4/9x

Please find attachment for graph.

Part C: Don't have a graph, sorry! (part a. method is more preferred to find more acidic because it gives the actual acidic amount.)

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