Solve the equation, and check the solution. w/3 = 0.9 (The w is a variable for the fraction)
Answer:
w = 2.7
Step-by-step explanation:
To solve for what number divided by 3 is equal to 0.9 you can do 0.9*3 and get the answer 2.7. w = 2.7.
The average hotel price in Moscow is $216 per night with a standard deviation of $32. The average hotel price in Cancun is $161 per night with a standard deviation of $22. The average hotel price in Bangkok is $100 per night with a standard deviation of $17. A room at the Emerald Hotel in Moscow costs $200 per night, a room at the Ocean View Hotel in Cancun costs $183 per night, and a room at the Emperor Hotel in Bangkok costs $120 per night.
Required:
Which hotel is more expensive compared to other hotels in its city?
Answer:
The Emperor Hotel in Bangkok has the higher z-score, so it is more expensive compared to other hotels in its city.
Step-by-step explanation:
Z-score:
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question:
The most expensive hotel has the higher z-score. So
Emerald Hotel in Moscow:
Costs $200, which means that [tex]X = 200[/tex]
The average hotel price in Moscow is $216 per night with a standard deviation of $32, which means that [tex]\mu = 216, \sigma = 32[/tex]. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{200 - 216}{32}[/tex]
[tex]Z = -0.5[/tex]
Ocean View Hotel in Cancun
Costs $183, which means that [tex]X = 183[/tex].
The average hotel price in Cancun is $161 per night with a standard deviation of $22, which means that [tex]\mu = 161, \sigma = 22[/tex]. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{183 - 161}{22}[/tex]
[tex]Z = 1[/tex]
Emperor Hotel in Bangkok
Costs $120, which means that [tex]X = 120[/tex].
The average hotel price in Bangkok is $100 per night with a standard deviation of $17, which means that [tex]\mu = 100, \sigma = 17[/tex]. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{120 - 100}{17}[/tex]
[tex]Z = 1.18[/tex]
The Emperor Hotel in Bangkok has the higher z-score, so it is more expensive compared to other hotels in its city.
Find the value of x. Round to
the nearest tenth.
Enter the number that belongs in
the green box
Select the correct answer. Thank you
Answer:
I think a
Step-by-step explanation:
I need help simplifying the expression. Thank you!
Answer:
A
Step-by-step explanation:
the answer is a because when it is simplified
Answer:
[tex]4jkl[/tex]
Step-by-step explanation:
[tex] \frac{(64 {j}^{4} {k}^{8} {l}^{2}) ^ \frac{1}{2} }{(8 {j}^{3} {k}^{9}) ^{ \frac{1}{3} } } \\ \\ \frac{( {2}^{6} \times {j}^{4} \times {k}^{8} \times {l}^{2} ) ^{ \frac{1}{2} } }{ ({2}^{3} \times {j}^{3} \times {k}^{9}) ^{ \frac{1}{3} } } \\ \\ \frac{ {2}^{6 \times \frac{1}{2} } \times {j}^{4 \times \frac{1}{2} } \times {k}^{8 \times \frac{1}{2} } \times {l}^{2 \times \frac{1}{2} } }{ {2}^{3 \times \frac{1}{3} } \times {j}^{3 \times \frac{1}{3} } \times {k}^{9 \times \frac{1}{3} } } \\ \\ \frac{ {2}^{3} \times {j}^{2} \times {k}^{4} \times l}{2 \times j \times {k}^{3} } \\ \\ {2}^{(3 - 1)} \times {j}^{(2 - 1)} \times {k}^{(4 - 3)} \times l \\ \\ {2}^{2} \times j \times k \times l \\ \\ = 4jkl[/tex]
Hope this helps you.
Let me know if you have any other questions :-):-)
please help me!!!!! its due tonight!!!!!!
Answer:check explanation below
Step-by-step explanation:
Okay so for Part A: since B is the midpoint of SM, SM=SB+BM. Therefore, you can set them both equal to each other which would be 4x=98.3. You divide both sides by 4 to get the value of x which is 24.575. Now you substitute 24.575 back into 4x and you get 98.3. Since SM=SB+BM, you do 98.3+98.3 and SM=196.6.
Part B: For part b you do the same thing as A to find the values of x y and x. You already know that x=24.575. For Y, since T is the midpoint of DS you can set ST=TD. This means that 123.4=2/5y. When you solve for y you get y=308.5. Lastly, for z since N is the midpoint of MD, MN=ND. So 102=7/10z. When you solve for z you get approximately 145.7. Now you just add them together -- 24.575+308.5+145.7= 478.775.
Part C: NT is half of SM. Since SM is 196.6, NT is 98.3. TB is half of MD. MD is 203.99 so TB is 101.995. BN is half of SD. SD is 246.8 so BN is 123.4
So, NT+TB-BN is 98.3+101.995-123.4 which equals 76.895
which of the following is equivalent to 5(2x - 3) - 4(3x - 2) = 18?
2x-7=18 -
2x-5=18
-2x-7=18
-2x-23=18
Answer:
-2x-7=18
Step-by-step explanation:
my be this could help
Please can someone work out JUST B CALCULATE AN ESTIMATED FOR THR MEAN PLS!! I have only 5 mins till I had it in. 10 point!!!!
2. Find the missing side length
of the right triangle below
Answer:
pretty sure that would be 15
Step-by-step explanation:
The length of a rectangular frame is 15 inches, and the width of
the frame is 9 inches. What is the length of the diagonal of this
frame in inches?
Please help
Answer:
Step-by-step explanation:
For each inequality, decide whether the solution is represented by x < 4.5 or x > 4.5.
-24 > -6(x - 0.5)
Which expression would produce the greatest product?
A.10x12/22. B.10x4/5. C.10x9/10. D.10x3/2.
Answer:
c.
Step-by-step explanation:
y-4=-3(x-3) in standard form
show ur work
Answer: y-4=-3(x-3) in standard form is - 3x+y=13
Step-by-step explanation:
Hope this helps!
Answer:
3x+y=13 hope this helps dont have the work:)
Please help me with this. I give brainliest and give ratings. Don't answer just to take my points or your getting reported
Answer:
by 3/4ftmrs torrer is shorter than her husband
6 1/4-5 1/2=25/4-11/2=3/4ft
Help please !!!! ASAP
I am a quadrilateral.
• I have two pairs of parallel sides.
• All my sides are the same length.
Which name describes me the best?
rectangle
parallelogram
trapezoid
square
rhombus
Answer:
those criteria define a square or a rhombus
Step-by-step explanation:
if there was another fact about the angle measures, for example if it said all my angles are equal then it would be a square, not a rhombus
Put these fractions in order from greatest to least.
8/9 8/11 8/10 8/12
Answer:
8/9, 8/10, 8/11, 8/12
Step-by-step explanation:
If you convert the fractions to percents, 8/9 would be 88%, 8/10 would be 80%, 8/11 would be 72%, and 8/12 would be 66%. Since its greatest to least, you would use the original fractions, but these percents would help you get the correct answer.
What is the smallest whole number to the right of 3.52?
12 years ago, a mother was twice as old as her son. their present age are in the ratio of 14:9. find their present ages.
Answer:
The presents age of the mom is 42 years old, and of the son is 27 years old.
Step-by-step explanation:
This question can be solved using a system of equations.
I am going to say that:
The mothers age is x.
The son's age is y.
12 years ago, a mother was twice as old as her son.
This means that:
[tex]x - 12 = 2(y - 12)[/tex]
[tex]x = 2y - 24 + 12[/tex]
[tex]x = 2y - 12[/tex]
Their present age are in the ratio of 14:9.
This means that:
[tex]\frac{x}{y} = \frac{14}{9}[/tex]
[tex]14y = 9x[/tex]
Since [tex]x = 2y - 12[/tex]
[tex]14y = 9(2y - 12)[/tex]
[tex]18y - 108 = 14y[/tex]
[tex]4y = 108[/tex]
[tex]y = \frac{108}{4}[/tex]
[tex]y = 27[/tex]
[tex]x = 2*27 - 12 = 54 - 12 = 42[/tex]
The presents age of the mom is 42 years old, and of the son is 27 years old.
Please help me with this. I give brainliest and give ratings. Don't answer just to take my points or your getting reported
Answer:
1/7 +5/9={1×9+5×7)/(9×7)=44/63is your answer
Let the graph of g be a horizontal shrink by a factor of 1/2 and a reflection in the x-axis, followed by a translation 1 unit down of the graph of f(x)=x^2 . Write a rule for g .
plz help very urgent
Answer:
Fooddddddddingggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggkygygygyygygygghgghhghghghgjkjkjkjkjkjkkjkjkjkjkjkjkjlllololololololololllololooloololololololololooololololololoolololololololoollololollololololololololoollol0olol0olololo0lo0l0ol00ol10000000000000000l00l00l00l000l0l0l0l0l0l00l0l0l0loolololoolol0olllolol0oooololo00l00l0l0lloololol0lololol0oololol0loloolol000llolo
Step-by-step explanation:
Which is the complete factored form of 2 x 3 - 10 x2–2x+10?
Answer:
The answer is -2( x + 2)
Step-by-step explanation:
Factor the polynomial.
Hoped this helped!
Brainly, Please?
The complete factorization of the given polynomial is 2(x-5)(x+1)(x-1).
The given polynomial is 2x³-10x²-2x+10.
What are factors of polynomial?The factors are the polynomials which are multiplied to produce the original polynomial.
The factorization of the given polynomial is as follows:
2x³-10x²-2x+10
= 2x²(x-5)-2(x-5)
= (x-5)(2x²-2)
= 2(x-5)(x²-1)
Now, x²-1=(x+1)(x-1) (∵(a²-b²=(a+b)(a-b))
So, 2(x-5)(x+1)(x-1)
Therefore, the complete factorization of the given polynomial is 2(x-5)(x+1)(x-1).
To learn more about the factorization of polynomial visit:
https://brainly.com/question/16789195.
#SPJ6
Here are the ingredients needed to make 8 pancakes
250ml milk
140 g flour
5 g butter
a) Simon makes 4 pancakes.
Answer: To make 4 pancakes, Simon will need 125 ml milk, 70 grams flour, and 2.5 grams of butter.
Step-by-step explanation:
If that is the recipe to make 8 pancakes, and Simon has 4 pancakes, then Simon needs to cut the recipe in half. So we can multiply each ingredient by 1/2.
250 x 1/2 = 125.
140 x 1/2 = 70.
5 x 1/2 = 2.5
In conclusion, to make 4 pancakes, Simon will need 125 ml milk, 70 grams of flour, and 2.5 grams of butter.
nesesito ayuda con este problema
Answer:
Step-by-step explanation:
I KNOW SPEAK SPANISH GO TO A MEXICAN SITE NOT A AMERICAN SITE
Another teacher decides to average the height of all 15-year-old male students in his classes throughout the day. By the end of the day, he measured the height of 57 boys and calculated an average of 68.1 inches. The known mean height for 15-year-old boys is 67 inches, with a standard deviation of 3.19 inches. What is the percentile rank for this sample? (enter a number only, rounded to the nearest 2 decimal places)
Answer: 0.47
Step-by-step explanation:
0.47% = 0.0047 in decimal form. Percent means 'per 57'. So, 67Inches means 0.47 per 100 or simply 0.47/100. If you divide 0.47 by 100, you'll get 0.0047 (a decimal number).
Please help quick! I will give brainliest
Answer:
1. A
2. B.
3. 2^3 or 8
4. C.
Step-by-step explanation:
use mathaway
If you invest $2400 at an annual rate of 4.5% that is compounded continuously, how long will it take for your money to double in value? Round to the nearest tenth of a year Hint: use $4800 for A
Answer:
It will take 13.71 years
to double your investment
at 5.25% annual interest. (actual years = 13.55)
Step-by-step explanation:
i think its right if not am sorry
Explain why all of these expressions have the same value.
100÷5
10÷0.5
1÷0.05
I need help
Please answer y
Answer:
○ 1. B
○ 2. 146.25
Add the numbers
○3. (-6w) - 8 + 1 (-7w)
(-6w) -7 + (-7w)
Rearrange
(-6w) + -7 + (-7w)
(-6w) + (-7w) - 7
Solution
(-6w) + (-7w) - 7
○4. In mathematics, a rational number is a number such as −3/7 that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Every integer is a rational number: for example, 5 = 5/1
Answer:
hello there
Step-by-step explanation:
thank you very much
2) In 2 ½ hours, Joaquin can bake 4 ¼ dozen cookies.
a. What is his unit rate in dozen cookies per hour?
Answer:
1.7
Step-by-step explanation:
4.25 : 2.5 = 1.7 per hour