Mathematics Middle School
Answers
Answer 1
Answer:
So, she can expect to win a total of $0.33 .
Stepbystep explanation:
According to the question miriam will get 5$ when the dice will show 1 or 6 .
And also she will lose 2$ for any other number .
Now ,
Total number of favorable cases for winning of 5$ for the miriam are 2.
Total number of cases = 6.
Also,
Total number of cases in which she will lose money will be 4.
So, probability of win = .
Probability of loss = .
Thus ,
Total amount of money that she can expect to win =
×5  ×2 = .
So, she can expect to win a total of $0.33 .
Related Questions
How do you solve 15.00  6.24
Answers
Answer:
8.76
Stepbystep explanation:
Simplifying
15.00 + 6.24 = b
Combine like terms: 15.00 + 6.24 = 8.76
8.76 = b
Solving
8.76 = b
Solving for variable 'b'.
Move all terms containing b to the left, all other terms to the right.
Add '1b' to each side of the equation.
8.76 + 1b = b + 1b
Combine like terms: b + 1b = 0
8.76 + 1b = 0
Add '8.76' to each side of the equation.
8.76 + 8.76 + 1b = 0 + 8.76
Combine like terms: 8.76 + 8.76 = 0.00
0.00 + 1b = 0 + 8.76
1b = 0 + 8.76
Combine like terms: 0 + 8.76 = 8.76
1b = 8.76
Divide each side by '1'.
b = 8.76
Simplifying
b = 8.76
First you just do normal subtraction and get 8.76 and since your solving for b 8.76=b
Find the indicated probability. Round to three decimal places. The participants in a television quiz show are picked from a large pool of applicants with approximately equal numbers of men and women. Among the last 11 participants there have been only 2 women. If participants are picked randomly, what is the probability of getting 2 or fewer women when 11 people are picked? 0.006 0.033 0.027 0.032
Answers
Answer:
0.033
Stepbystep explanation:
Use binomial probability:
P = nCr pʳ (1−p)ⁿ⁻ʳ
where n is the number of trials,
r is the number of successes,
p is the probability of success,
and q is the probability of failure (1p).
Here, p = 0.5, q = 0.5, and n = 11.
We need to find P when r is 0, 1, and 2, then add up the results to get the total probability.
r = 0:
P = ₁₁C₀ (0.5)⁰ (0.5)¹¹⁻⁰
P ≈ 0.0005
r = 1:
P = ₁₁C₁ (0.5)¹ (0.5)¹¹⁻¹
P ≈ 0.0054
r = 2:
P = ₁₁C₂ (0.5)² (0.5)¹¹⁻²
P ≈ 0.0269
Therefore, the total probability is:
P = 0.0005 + 0.0054 + 0.0269
P = 0.0328
Round to the thousandths place, the probability is 0.033.
Question 18 of 25 4 Points
A group of professional wrestlers are known to have weights that are normally
distributed with a mean of 265 lbs. and a standard deviation of 28 lbs. To the
nearest pound, what is the least amount one of these wrestlers could weigh
and still be in the top 10% of all weights?
O
A. 298 lbs.
300 lbs.
301 lbs.
OOOO
297 lbs.
E. 299 lbs.
Answers
the least amount one of the wrestlers could weigh is 301.
What is standard deviation?
The term standard deviation refers to a measurement of the data's dispersion from the mean. A low standard deviation implies that the data are grouped around the mean, whereas a large standard deviation shows that the data are more dispersed.
Given that,
Mean μ = 265,
Standard deviation σ = 28 lbs.
Let the least amount one of the wrestlers could weigh is x.
To find x such that P(X≥x) = 0.10
1  P(X
Answer: 301
Stepbystep explanation:
What is 8,147 ÷ 24 with a remainder
Answers
Answer:
339 R11
Stepbystep explanation:
8,147 ÷ 24 = 339 R11
Simplify each expression 1/3^3
Answers
Answer:
27
Stepbystep explanation:
Use exponent laws
1/3^3 = 3^3 = 27
For a circle with a radius of 15 cm, what is the length of an arc intercepted by an angle measuring 120°? A)
51 cm
870 cm
107 cm
127 cm
Answers
Answer:
or
Stepbystep explanation:
step 1
Find the circumference of the circle
The circumference of a circle is equal to
we have
substitute
step 2
Remember that the circumference of the circle subtends a central angle of 360 degrees
so
using proportion
Find the length of an arc by a central angle of 120 degrees
The exact value of the length of the arc is
assume
> approximate value
Answer:
Stepbystep explanation:
About 31.4 based on the other answers I have seen.
Rashid has been purchasing bonds from a company that has recently gotten poor ratings for its ability to pay Its vendors. As a resu Increased risk, the bond's interest rate has increased. What type of risk does Rashid face as an Investor?
A
taxability risk
• B.
Inflationary risk
C.
currency risk
D.
credit risk
Answers
Answer:
The answer is letter D, credit risk.
Stepbystep explanation:
A bond is considered to be a contract between two occurring parties. It allows companies to borrow money from people (investors). These investors purchase the bond and are given a certain interest for a particular period of time. The rate varies according to the economic situation or the company's standing. This affects the supply and demand for the bond.
Remember that the price of the bond and the interest rate are indirectly proportional. This means that as the price of the bond increases, the interest rate decreases and viceversa.
In the situation above, Rashid is facing a credit risk as an investor. He has been purchasing bonds from a company that has recently gotten a poor rating. This means that the company is not performing well. This can affect the amount of money (including the interest) that will be paid back to Rashid. There is a chance that some of the amount of money he invested will not be returned to him. It was also mentioned that the bond's interest rate has increased. This means that the bond prices will decrease and thus the number of bond investors will also decrease. The issuer of the bond in this situation can have a hard time paying the investor back.
Answer:
D
Stepbystep explanation:
find the unit cost of each of the following to determine which is the better value: 8 CDs for $56.99 or 3 CDs for $22.99
Answers
Answer:
8 CD's for $56.99 is better value than 3 CD's for $22.99.
Stepbystep explanation:
We are given that,
Cost of 8 CD's is $56.99 and cost of 3 CD's is $22.99.
Now, to determine which is the better value, we will find the cost of 1 CD in both the cases. The case which will give cost per CD less will represent the better value.
CASE 1 :
Cost of 8 CD's = $ 56.99
So, cost of 1 CD = $ 56.99 ÷ 8 = $ 7.12 (approx.)
CASE 2 :
Cost of 3 CD's = $ 22.99
∴ Cost of 1 CD = $ 22.99 ÷ 3 = $ 7.66 (Approx.)
So, the CD's are available in cheaper rates in the first case in comparison to second case.
So, 8 CD's for $56.99 is better value than 3 CD's for $22.99.
Answer:
The unit cost of 8 CDs for $56.99 is $7.12 and the unit cost of 3 CDs for $22.99 is $7.66.
And the better value is of 8 CDs for $56.99.
Stepbystep explanation:
Given:
8 CDs for $56.99 or 3 CDs for $22.99.
Now, to find the unit cost to determine which is better value.
By using unitary method we find it:
So, to get the unit cost of 8 CDs for $56.99:
If 8 CDs cost $56.99.
Then, 1 CD cost =
Thus, the unit cost = $7.12.
Now, to get the unit cost of 3 CDs for $22.99:
If 3 CDs cost $22.99.
Then, 1 CD cost =
Thus, the unit cost = $7.66.
Now, on comparing we determine the better value is of 8 CDs for $56.99.
Therefore, the unit cost of 8 CDs for $56.99 is $7.12 and the unit cost of 3 CDs for $22.99 is $7.66.
And the better value is of 8 CDs for $56.99.
what is the steps to brake down this equation?
Answers
∛128
Divide 128 by 2 to get 64
Now you have: ∛(64 *2)
Rewrite 64 as 4³
Now you have:
∛(4³ *2)
Pull Terms out of the radical to get the final answer:
4∛2
If f(x) = 10x + 7 and g(x) = x^2  7x, find (f  g)(x) A. (f  g)(x) = x^2 + 3x + 7
B. (f  g)(x) = 10x^3  63x^2  49x
C. (f  g)(x) = x^2 + 17x + 7
D. (f  g)(x) = 10x + 7
Answers
Answer:
C
Stepbystep explanation:
note that (f  g)(x) = f(x)  g(x)
f(x)  g(x)
= 10x + 7  (x²  7x) ← distribute parenthesis by  1
= 10x + 7  x² + 7x ← collect like terms
=  x² + 17x + 7 → C
Four friends Ram, Mohan, Ajay and Sanjay are playing in a rectangular playground. Ram suggested his friends to get the position by keeping a stone in the middle of the park and he told the stone is the origin for their position. Now, they got the position of all four friends as (– 4, – 2), (– 3, – 5), (3, – 2) and (2, 3). Mohan claimed that their position will form a quadrilateral if taken in order. Ajay and Sanjay are now trying to calculate the area of the quadrilateral formed by their position if taken in order. How much area they calculated.
Answers
The area calculated by them is 21.
Stepbystep explanation:
The given points are (4,2),(3,5),(3,2) and (2,3).
The area of the quadrilateral:
A= .
From the given points,
A=
A=
A=
The area of the quadrilateral = 21.
Answer:
The are is 28
Stepbystep explanation:
Given:
Point 1: (– 4, – 2)
Point 2: (– 3, – 5)
Point 3: (3, – 2)
Point 4: (2, 3)
then, the coordinates of the first point are x1 = 4, y1 = 2; of the second point x2 = 3, y2 = 5; and so on.
We can compute the area of the quadrilateral with the shoelace formula as follows:
area = 1/2 * x1*y2 + x2*y3 + x3*y4 + x4*y1  x2*y1  x3*y2  x4*y3  x1*y4 
area = 1/2 * (4)*(5) + (3)*(2) + 3*3 + 2*(2)  (3)*(2)  3*(5)  2*(2)  (4)*3 
area = 1/2 * 56 = 28
Write an equivalent ratio for 3:5
Answers
Answer:
9:15
You have to multiply the same on both sides.
Evaluate: (4 + 6 ⋅
3) + 3
16
66
33
25
Answers
Answer:
25
Stepbystep explanation:
(4 + 6*3) + 3
(4+18) +3
25
Rita's family is moving to Grand Junction to Dallas. The moving van averages 60 miles each hour. About how many hours does the van take to reach Dallas? Explain your work
Answers
Answer:
16 hours and 20 minutes.
Stepbystep explanation:
Please consider the complete question.
Rita's family is moving to Grand Junction to Dallas, which is 980 miles. The moving van averages 60 miles each hour. About how many hours does the van take to reach Dallas?
To find the time taken by van to reach Dallas, we will divide total distance by speed.
Let us convert 0.3333 hours into minutes by multiplying 0.3333 by 60.
Therefore, it will take 16 hours and 20 minutes for the van to reach Dallas.
What is the yintercept of the function f(x) = 3x
Ο
Ο
on who wire on
Ο
Ο
Answers
Answer:
see the explanation
Stepbystep explanation:
we know that
The yintercept is the value of the function when the value of x is equal to zero. Also is called the initial value of the function
I will analyze two cases
Part 1) we have
so
For x=0
substitute
therefore
The yintercept is the point (0,0)
Part 2) we have
so
For x=0
substitute
therefore
The yintercept is the point (0,1)
Mia listed five rational numbers. Then she drew a number line to display and compare them. a. Plot the numbers on the number line 0.5, 7/4, 1.25, 0.75, 9/4
Answers
Answer:
9.4, 0.5, 0.75, 1.25, 7/4
Stepbystep explanation:
These are the values of all the numbers in order.
Have a good day!!!
The Neolithic Revolution led people to lead lives based on hunting and gathering
allowed people to live in permanent settlements
reduced people’s need for food and resources
prevented the advance of civilization
i wel give the branlist to howe answers it carect
Answers
The Neolithic Revolution allowed people to live in permanent settlements.
Explanation:
The Neolithic Revolution is the phase of transition in which many of the human cultures in the world shifted their lifestyle to permanent settlement and agriculture from hunting and gathering.
This era is also named as First Agricultural Revolution or Neolithic Demographic Transition. The agricultural practices led the cultures to develop the knowledge of domestication of animals and they began to observe and experiment with the plants (to learn or know how they grow and develop).
Neolithic period is named as revolution because this period changed the way of life of most of the communities. This first occurred in socalled "Fertile Crescent" or Mesopotamia (modern Iraq).
The Neolithic Revolution allowed people to live in permanent settlements.
Answer: Option B
Stepbystep explanation:
 This phase 'Neolithic Revolution' witnessed the change in the behavior of the people, notably the development of habits like hunting and gathering of animals and fruits.
 Although it is a development of habits, people refer to it as a revolution because it changed the lifestyle of the communities.
 It dates back to prehistoric times which is said to have happened almost nine thousand years ago. Thereby concluding that, the Neolithic revolution allowed people to live in permanent settlements.
Naila worked 3.5 hours more than Lisa. Together, they worked a total of 18 hours. Lisa worked h hours. h+7=18
h+3.5=18
h+(h+3.5)=18
h+(h−3.5)=18
Answers
Answer:
Lisa = 7 hours and 15 minutes
Naila = 10 hours and 45 minutes
Stepbystep explanation:
Naila = N
Lisa = L
Naila worked:
N = 3.5 + L
In total, they worked:
N + L = 18
Lisa worked:
L = h
Substitute values into the total equation
3.5 + L + L = 18
Solve
2L = 14.5
L = 7.25 = 7 hours and 15 minutes
N = 7.25 + 3.5 = 10.75 = 10 hours and 45 minutes
Hope this helps :)
Selena is standing on a rock cliff that is 52 feet high. She tosses a pebble upward over the edge, where it hits the top of a 12 foot high boulder. The quadratic equation that models the path of the pebble is given below. How long did it take for the pebble to hit the top of the boulder? p(t)=16t^2+12t+52
Answers
Answer: At , the pebble hit the top of the boulder.
Stepbystep explanation:
Since we have given that
Distance at which Selena is standing on a rock cliff = 52 feet
Height of boulder above a rock cliff = 12 foot
So, the given quadratic equation would be
First we derivative it w.r.t t,
Now, we will find the critical value,
Now, we will check whether it is maximum or not.
So, we get that it is maximum.
Hence, at , the pebble hit the top of the boulder.
Answer:
The answer is t=3/8
Solve. Cars
In the school parking lot there were 113 fewer bikes
than cars. There were 185 cars. How many cars and
bikes were in the parking lot?
Bikes
185  113
185
(about 190 
Round to the nearest ten to estimate. Then
complete the chart.
(about 190)
or


= X
X=
cars and bikes.
Estimate: There were about
Actual:
 
= X
X
=
1
Solution: There were
cars and bikes in all.
Answers
Answer:
Total bikes and cars are 260
Stepbystep explanation:
Cars:
Bikes:
Total:
Rounding to the nearest ten: 260