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 1

Answer:

$1945

Step-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

A Finance Magazine Did A Survey And Found That The Average American Family Spends $1,600 On A Summer

Related Questions

This has no answer choices

Answers

Answer:

I think x eaquals 130

Step-by-step explanation:

Because if you add 50 to 130 you get 180 a a straight line is 180 hope this helps

through: (-3, 2), parallel to y = -

4
5
x + 1

Answers

Answer:

[tex]y=\frac{-4}{5}x-\frac{2}{5}[/tex]

Step-by-step explanation:

passes through (-3,2), parallel to y=-4/5x + 1

[tex]y-y_{1} =m(x-x_{1} )\\y-2 =\frac{-4}{5} (x+3)\\y-2=\frac{-4}{5}x-\frac{12}{5}\\y=\frac{-4}{5}x-\frac{2}{5}[/tex]

100
Ave. High
Ave. Low
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Using the bar graph from above to answer the following questions:

a) What is the average monthly low temperature for Bogusville?


F


b) What is the average monthly high temperature for Bogusville?


F


c) What is the average monthly high temperature for Bogusville during the fourth quarter of the year?


F


d) What is the average monthly low temperature for Bogusville during the fourth quarter of the year?

Answers

this is the most easier question anyone has asked yet. kill me

7th GRADE WORK HELPPP!!! ILL BRAINLIST!!!

Answers

Answer: Rachel's prediction is faster than the actual unit rate, and Theadore's prediction is slower.

Answer:

I'm pretty positive the answer is B

Step-by-step explanation:

Since it's been 7 1/2 weeks and they thought it would grow atleast 2/5 a foot a week that should mean it's growing faster than anticipated.

If f(2) = 22 – 5, then what is the value of f(2) + f(5)?

Answers

Answer:

67

Step-by-step explanation:

With the information of f(2) = 22-5,  you can assume the equation will be f(x) = 11x-5. Using this, you can calculate f(5) by doing 11(5)-5, which is 50. 22-5 is 17, so 50+17=67

1/2 = q + 2/3
and
p - 3 1/6 = -18.73

please help, im giving 20 points

Answers

Answer:

see below

Step-by-step explanation:

1/2 = q + 2/3

Subtract 2/3 from each side

1/2 -2/3 = q+2/3-2/3

Getting a common denominator of 6

3/6 - 4/6 = q

-1/6 =q

p - 3 1/6 = -18.73

Add 3 1/6 to each side

p - 3 1/6 + 3 1/6 = -18.73 + 3 1/6

p = -18 73/100 + 19/6

Get a common denominator

p =- 5619/300 + 950/300

  = -4669/300

=-15 169/300

5(5t-2) = -35

show how to solve the given equation ​

Answers

distribute the 5
25t-10=-35
+10 +10
25t =-25
divide by 25 on both sides
t=-1

Simplify the expression (2d + 3) + (3d − 12).

Answers

Answer:

5d - 9

Step-by-step explanation:

Step 1: Write equation

(2d + 3) + (3d - 12)

Step 2: Combine like terms

5d - 9

I know it’s hard to read, but if u can, please help!!

Answers

Answer:

  4th choice (if we guessed the blurry letters properly)

Step-by-step explanation:

The reflection maps ...

  (x, y) ⇒ (x -y)

Then the rotation maps ...

  (x, -y) ⇒ (y, x)

That is, R(-1, 4) becomes R'(4, -1), apparently matching point S, the only point at (4, -1). We can't read the letters, but we know that you only need to know where R ends up in order to select the correct answer.

factorise
a) 4p²-81
b) x²-13x+36

Answers

Answer:

A = (2p + 9) (2p - 9)

B = (x - 9) (x - 4)

Step-by-step explanation:

For A : Rewrite 4p^2 as (2p)^2.

(2p)^2−81

Rewrite 81 as 9^2.

(2p)^2−9^2

Since both terms are perfect squares, factor using the difference of squares formula, a^2 − b^2 = ( a + b ) ( a − b ) where a = 2p and b = 9 .

(2p + 9) (2p − 9)

For B : Consider the form x^2 + bx + c . Find a pair of integers whose product is c and whose sum is b . In this case, whose product is 36 and whose sum is − 13 .

-9, -4

(x - 9) (x - 4)

I hope this helps.

what is 2 to the power of 2 multiply 5​

Answers

Answer: 20

1) simplify 2^2 to 4

4*5

2) simplify

20

HELP I NEED ANSWERS NOW!!
It is 3/4 before closing time at the grocery store. It takes about 1/8 hours for Jane to find 1 item on her shopping list. How many items can Jane find before the store closes?
(please help i'm dumb)

Answers

she would only be able to get 3 things

Answer:i think you will have 5/1 sorry if i am wrong

i t

Step-by-step explanation:

Find the value of a. then find the angle measures of the polygon


Answers

Answer is 2a=120 and a=60
2a+2a+a+a=360
6a=360
a=60

2a
2(60)=120

HELP What is an equation for the parallel to y= 3x-1 that passes through (-9,-2)

Answers

Answer:

The line parallel to this equation would be y=3x+25

Step-by-step explanation:

A parallel line has the same slope but a different y-intercept (so just ignore the "-1" in the equation )  Our goal is to find the y-intercept ("b")

We will start with  

y=3x+b, plug in (-9,-2) for the x and y

-2=3(-9)+b

-2=-27+b,    add 27 to both sides

-2+27=-27+27+b    (the 27's on the right side cancel side)

b=25

our new equation is y=3x+25

Whats would be the closest answer to this question

Answers

Answer:

KM

JK

PK

MJ

i hope this helps

c-c+a+ |a|; use a = 4, and c=5

Answers

Answer:

c-c+a+|a|

5-5+4+|4|

8

Step-by-step explanation:

an angle measures 38 degrees more than the measure of its supplementary angle. what is the measure of each angle?

Answers

Answer is 71 and 109 degrees
x+(x+38)=180
2x+38=180
2x=142
x=71

x+38
71+38=109

Y-z=m(x-k) solve for x

Answers

Answer:

x = y/m - z/m +k

Step-by-step explanation:

Which expression is equivalent to -6(-2/3+2x)?
-4 -12x
-4+2x
4 - 12x
4+12x

Answers

Answer:

4-12x

Step-by-step explanation:

-2/3*-6 is 4

-6*2 is -12

4-12x

Answer:

The third one, 4-12x

Step-by-step explanation:

You want to find an equation that equals  4 - 12 x

List websites where you can watch anime for free without adds!!

Answers

Answer:

netflix is all I use for the website lol

Answer:

There's no such place to watch anime without ads. Jk I'm not quite sure but yeah.

help me please :(((((

Answers

Answer:

4 4 4

4

4

Step-by-step explanation:

it is all the same number, im being 4 real


Which number line represents the solution to the inequality 1 + 2x < -7?

Answers

Answer:

[tex]\boxed {x < -4}[/tex]

Step-by-step explanation:

Solve the following inequality:

[tex]1 + 2x < -7[/tex]

-Subtract [tex]1[/tex] to both sides:

[tex]1 - 1 + 2x < -7 - 1[/tex]

[tex]2x < -8[/tex]

-Divide both sides by [tex]2[/tex]:

[tex]\frac{2x}{2} < \frac{-8}{2}[/tex]

[tex]\boxed {x < -4}[/tex]

The number line:

Express the percent as a decimal.
30\%30%30, percent
Stuck help

Answers

If it’s 30% converted to a decimal it’ll be .30

Ray bike 11 miles last week jack bike 12 miles last week jack biked how many times as many miles as ray

Answers

Answer:

Step-by-step explanation:0.1

0.1 is the answer for your question

identify the x and y intercepts

Answers

Answer:

(1,0) (0,8) thats all I see

Step-by-step explanation:

x-intercepts: (-1,0) (4,0) (5,0) y-intercepts: (0,8)

.164 round to the nearest tenth

Answers

Answer:

.2

Step-by-step explanation:

Name the shapes based on the descriptions.
1) Opposite sides are congruent and diagonals are not congruent.
2) Opposite sides are congruent and diagonals are congruent.
3) All four sides are congruent and diagonals are not congruent.
4) All four sides are congruent and diagonals are congruent.

Answers

Answer:

circle

Step-by-step explanation:

Answer:

1) Parallelogram

2) Rectangle

3) Rhombus

4) Square

Given the parent function f(x) on the left below, which graph could represent g(x) = -f(x) -2

Answers

Answer:

A

Step-by-step explanation:

To do this, you look at each point. What -f(x) means is that you flip the function over the x axis. In this case, c doesn't work. Then, you have to look at the -2 term. That means that the entire function, all the points, are shifted 2 units down. The image isn't very clear for me but I am pretty sure it is A.

Daniela and Jack are hiking a steady incline. They use their GPS device to determine their elevation every 15 minutes. At 15 minutes and 30 minutes they were at elevations of 10,300 and 10,900 feet, respectively. Write an equation expressing their elevation in relation to time.

Answers

Answer:

[tex]h=40t+9700[/tex]

where the elevation, h, is in feet and time, t, is in minutes.

Step-by-step explanation:

At the time, [tex]t_1=15[/tex] min, the elevation, [tex]h_1= 10,300[/tex] feet and

at the time [tex]t_2= 30[/tex] min, the elevation, [tex]h_2=10,900[/tex] feet.

As they are hiking a steady incline, so the change in the elevation with respect to time will be constant.

So, there will be a linear relationship between the elevation and the time.

Let [tex]h[/tex] be the elevation at any time instant [tex]t[/tex], so the linear relation among these quantities is

[tex]h=mt+C_0\;\cdots(i)[/tex]

where [tex]m[/tex] is the rate of change of elevation with respect to time and [tex]C_0[/tex] is constant.

The change in the elevation, [tex]\Delta h=h_2-h_1= 10,900-10,300=600[/tex] feet.

and the change in time, [tex]\Delta t=t_2-1_1=30-15=15[/tex] min.

So, change in the elevation in unit time,

[tex]m=\frac{\Delat h}{\Delta t}=\frac{600}{15}=40[/tex] feet/min.

Now, from equation (i)

[tex]h=40t+C_0[/tex]

As the elevation, [tex]h=h_1[/tex] at time [tex]t=t_1[/tex], so

[tex]10,300=40\times15+C_0[/tex]

[tex]\Rightarrow C_0=9700[/tex]

Hence, the required equation is

[tex]h=40t+9700[/tex]

where the elevation, [tex]h[/tex], is in feet and time, [tex]t[/tex], is in minutes.

q log a -3 log b
Condense logarithm

Answers

Answer:

Step-by-step explanation:

q log a is equivalent to log a^q.  Note:  This assumes that the base of your logarithmic system is 10.

-3 log b is equivalent to log b^(-3)

and so   q log a -3 log b  in condensed logarithm form is

log {a^q*b^(-3)}

                 a^q

or log  -----------------

                 b^3    

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