A finance magazine did a survey and found that the average American family spends $1,600 on a summer vacation. If the distribution is normal with standard deviation $411, find the amount a family would have spent to be the 80th percentile. PreviousNext
Answers
Answer:
$1945Step-by-step explanation:
Let X be the normal distribution
Kindly find attached a detailed annotation of the solution to the problem.
in the attached document, we found the value that corresponds to 80th percentile, hence we found the value such that the probability that the variable x is lower than this value is 0.8.
Also, from the calculation, we found that the value which corresponds to the 80th percentile is $1945
Related Questions
I need answer ASAP!!!!
Answers
a square has a perimeter of 60yd. what is the length of each side
Answers
Answer: 15
Step-by-step explanation: 60/4=15
the perimeter is the overall numbers that are on each side that add up since a square has 4 sides and the overall perimeter=60 in all then it's 60/4=15
factorise k^2 + 5k + 6
Answers
Answer: (k+2) (k+3)
Step-by-step explanation:
Factor 5^2 +5k+6 using the AC method.
r+ 4f when r=-6 and f=-5
Answers
Answer:
-26.
Step-by-step explanation:
Substitute the numbers and letters like this
-6 + (-5 x 4)
Which would evaluate to -6 + -20
And since it's the same sign, you can make it -6 - 20.
That equals -26.
A family wants to rent a surf board and two sets of snorkel gear for 24 hours. What is their total cost?
Answers
I am assuming snorkel gear is just that 3rd row
Answer:
$756
Step-by-step explanation:
A surfboard costs $310 for 12 hours. Doubled you have 620 for 24 hours.
Each set of snorkel gear costs $34 for 12 hours
34 times four is 136 for two sets for 24 hours.
136 + 620 = 756
See that's 6/23 is not the answer
Answers
Answer:
6/8,
Step-by-step explanation:
Answer:
You tried and that’s what matters, better luck next time. I‘lol ray to help you next time. Good Job
What are the roots of the polynomial equation x cubed minus 7 x = 6 x minus 12? Use a graphing calculator and a system of equations.
Answers
↓Answer:
Step-by-step explanation:
It will be 504
Answer:
THE ANSWER IS B
Step-by-step explanation:
9.)
James invested $5000 at 7% APR and $6500 at 9% APR What was his annual income
from the investments?
Answers
Answer:
i dont know i dont know i dont know
Jim and Mary saw a commercial on TV for a cruise line. The longer trip costs ???. The shorter trip costs only $1,629. How much less will Mary and Jim spend if they take the shorter ocean trip? If the answer is $529, find the number that will correctly replace ???.
Answers
Answer:
$2158 dollars.
Step-by-step explanation:
The longer trip would cost $2158 dollars, because if you add the total difference of the two costs with the cost of the shorter trip, your answer would be $2158 dollars.
Can someone please help me
Answers
Answer:
k > 13 OR K < 4
Step-by-step explanation:
-1 plus 14 is 13
19 minus 15 is 4
One local radio station plays a commercial every 6 minutes. Another local radio station plays a commercial every 9 minutes. Both radio stations just played commercials. How many minutes will pass before both local radio stations play commercials again at the same time?
Answers
Answer:
18 mins
Step-by-step explanation:
Chad's baseball team is practicing hitting in the batting cages. The pitching machines pitch baseballs at a rate of 35 pitches in 5 minutes. Chad practiced hitting for 8 minutes.
How many baseballs were pitched to Chad in that time?
Answers
Answer:
56 baseball's
Step-by-step explanation:
The number of baseballs were pitched to Chad in 8 minutes is 56.
What is the unit rate?Unit rate can be defined as the ratio between two measurements with the second term as 1. It is considered to be different from a rate, in which a certain number of units of the first quantity is compared to one unit of the second quantity.
Given that, the pitching machines pitch baseballs at a rate of 35 pitches in 5 minutes.
Number of pitches hit in 1 minute = 35/5
= 7
Chad practiced hitting for 8 minutes.
So, the number of baseballs were pitched = 7×8
= 56
Hence, the number of baseballs were pitched to Chad in 8 minutes is 56.
To learn more about the unit rate visit:
https://brainly.com/question/11258929.
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Charmaine cutaway 3.65 meters of rope. Before that, she had 9 meters of rope. How much rope does Charmaine have left?
Answers
Answer:
5.35
Step-by-step explanation:
9-3.65=5.35
What is the value of √64 × ∛27?
Answers
Answer:
24
Step-by-step explanation:
√64 ×∛27
√64=√8²=8
∛27 = √3³=3
8*3=24
What's 2 + 3 ????????
Answers
Answer:
5
Step-by-step explanation:
Answer:
It would be 5
Step-by-step explanation:
Hope this helps
have a good day :)
5/2 rational or irrational
Answers
Answer: rational
Step-by-step explanation:
Answer:
5/2 is rational
Step-by-step explanation:
rational numbers either end and don't repeat or they repeat the same numbers like 0.359 or 0.333333333333333...
5/2 = 2.5 and it just ends with no repeating
5/2 is rational
Determine if 0.515115111511115111115... is rational or irrational and give
reason for your answer.
Answers
The number 0.515115111511115111115... is a irrational number .
What are rational numbers?A rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. For example, −3/7 is a rational number,
Rational numbers are finite and repeating decimals
0.888888 is a rational number because it is recurring in nature.
What are irrational numbers?Irrational numbers are a set of real numbers that cannot be expressed in the form of fractions or ratios. Ex: π, √2, e, √5
Irrational numbers are infinite and non-repeating.
0.21211211 is an irrational number as it is non-recurring and non terminating in nature.
According to the question
Number = 0.515115111511115111115...
Now,
The number is non - terminating and non recurring that imply it is a irrational number .
Hence, The number 0.515115111511115111115... is a irrational number .
To know more rational and irrational numbers here:
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A water tank initially contained 70 liters of water. It is then drained at a constant rate of 2.5 liters per minute.
How many minutes have passed, m, when the tank contains 46 liters? Round to the nearest tenth.
Answers
Answer:
9.6 minutes
Step-by-step explanation:
46=-2.5x+70
2.5x=24
9.6 = x
Nitrogen and oxygen are the most abundant gases in Earth’s atmosphere. A nitrogen molecule is 0.00000000003 meters larger than an oxygen molecule.
Which statements describe writing 0.00000000003 in scientific notation? Check all that apply.
Answers
Answer:
3 x 10 to the 11th
Step-by-step explanation:
move the decimal to the right, keeping it positive, 11 times to make it 0.3
Answer:
The exponent represents the number of places the decimal moves.
The decimal moves to the right.
The exponent is negative.
Step-by-step explanation:
The daily consumption of milk in a house is 3.25 litres. How much milk will be consumed in 30 days?
Answers
Answer:
Milk consumed in 30 days = (30 days)(3.25 litres/day) = 97.5 litres
Step-by-step explanation:
You are given a rate at which the milk is consumed (3.25 litres per 1 day). This is just multiplied by the 30 days to get your answer.
Answer:
97.5
Step-by-step explanation:
Daily :3.25
Days: 30
So,
3.25× 30
=97.5
Write the number 352 in expanded form. *
yar
answer
Answers
a:300+50+2
17v + 3v = 20
Solve for V.
Answers
Answer:
v=1
Step-by-step explanation:
Answer:
V = 1
Hope this helped :)
if two lines lie in the same plane and are perpendicular to the same line they are perpendicular true or false?
Answers
If two lines lie in the same plane and are perpendicular to the same line they are perpendicular is TRUE.
What are parallel lines?Two lines in the same plane that are equally spaced apart and never cross each other are said to be parallel lines.
Parallel lines are those lines in which slopes are the same and the distance between them remains constant.
If a line is perpendicular to another then they will make 90 degrees at the intersection.
So if another line is also making 90 degrees it means both lines must be in the same direction so they will be parallel as given in the image below.
Hence "If two lines lie in the same plane and are perpendicular to the same line they are perpendicular is TRUE".
To learn more about parallel lines;
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quired 1) Write in expanded form: 43 * Your answer
Answers
40 in tens place and 3 in ones place hope it helps
Is 0.584... rational or irrational
Answers
Answer:
Its irrational since it’s never ending
Step-by-step explanation:
rational numbers are usually perfect squares and since that’s repeating it’s not A erfect square instead its irrational since it never ends
Answer:
0.584... is irrational
Step-by-step explanation:
This is because the decimal can't be made into a ratio or fraction because it doesn't terminate.
there is 8 boys for every 5 girls in the 6th grade class, if there are 169 total students how many boys are there? How many girls? Write the ratio. *
Answers
Answer:
Boys : 104
Girls : 65
We know:
For every 8 boys there is 5 girls so the ratio is:
8 : 5
There are 169 total students
We are going to take these students as cookies and how many of them we are going to bake in batches
Step-by-step explanation:
Add 8 and 5 together to find out how many students in each 'Batch' 8 + 5 = 13
Then divide 169 by 13 which equals 13. Now you know how many 'Batches' there are.
To find the answer Multiply 13 by 8 and 5 ;
13 * 8 = 104
13 * 5 = 65
Check the answer:
104 + 65 = 169
Its correct!
Free Response - calculator may be used. Please help 50 points and brainliest
Answers
Answer:
3x^2 + x -4
Step-by-step explanation:
add them together to get:
-2x^2 + 5x^2 +3x - 2x +3 -7
3x^2 + x - 4 this should be the answer
Answer:
3x^2 + x -4
Step-by-step explanation:
add them together to get:
-2x^2 + 5x^2 +3x - 2x +3 -7
3x^2 + x - 4 this should be the answer, if im right
Help a gal out yal!
1.) Which of thr following equations is noy a linear equation?
A.) x-4y=-1
B.) x=2
C.) y=x-1/2
D.) x 2=5y
2.) Which of the following points lies on the graph of this equation?
2y=x+3
A.) (0,3)
B.) (2,5)
C.) (-1,2)
D.) (1,2)
3.) Fin the value of y that makes the equation 3y = x + 2 true, when x=1.
A.) 1
B.) 3
C.) 1/3
D.) 2
Answers
2.) D, (1,2) i made a graph and checked myself!
3.) A. because if x = 1 you do 2+1 and get 3y=3 then divide on both sides and end up with y=1.
hope this was helpful!
If a= -5, what is the value of a^2-4/a+2
Answers
Answer:
-7
Step-by-step explanation: When a= 5, let's substitute all a's with 5 in the expression:
[tex]\frac{a^{2}-4 }{a+2}\\\frac{(-5)^{2}-4 }{-5+2}\\\\\frac{25-4}{-3}\\\frac{21}{-3} \\= -7[/tex]
Hi
How are you?
Answer this simple question for points :)
22+22=?
Answers
Answer:
44
Step-by-step explanation: (not quite sure on how to explain this)
22+22=44
2 2
2 2
4 4
ty :,)
