The median household income in the US grew linearly from approximately $30, 000 in 1990 to $48, 000 in 2006. Let x be the number of years since 1990. Express the median income as a function of x. Use this function to approximate the median income in 2030. What is the significance of the slope of this function

Answers

Answer 1

Answer:

[tex]y = 1125x+30000[/tex] --- The equation

The median income in 2030 is $75000

Step-by-step explanation:

Given

Represent years since 1990 with x and the income with y.

So, we have:

[tex](x_1,y_1) = (0,30000)[/tex] --- In 1990

[tex](x_2,y_2) = (16,48000)[/tex] --- In 2006

Solving (a): Express as a function.

First, we calculate the slope

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

[tex]m = \frac{48000-30000}{16-0}[/tex]

[tex]m = \frac{18000}{16}[/tex]

[tex]m = 1125[/tex]

The equation is then calculated as:

[tex]y = m(x-x_1)+y_1[/tex]

This gives:

[tex]y = 1125(x-0)+30000[/tex]

Open bracket

[tex]y = 1125x-0+30000[/tex]

[tex]y = 1125x+30000[/tex]

Solving (b): Income in 2030.

In 2030, x = 40.

Substitute 40 for x in [tex]y = 1125x+30000[/tex]

[tex]y = 1125*40 +30000[/tex]

[tex]y = 45000 +30000[/tex]

[tex]y = 75000[/tex]

Solving (c): The significance of the slope.

In (a), the slope is calculated as 1125.

This implies that the yearly rate is $1125


Related Questions

What is the velocity of a car that’s traveled 306 kilometers northeast in 3.4 hours

Answers

Answer : -302.6

Step-by-step explanation:

Write an integer for deposit of $100

Answers

Write an integer for deposit of $100:

-$100

Can you guys help me and answer this math question below please I’ll mark brainliest to whoever answers

Answers

the answer to this problem is (2,4)

Answer:

Your answer will be (2,4) :)

A restaurant chef made 4 1/2 pints of mushroom soup Each bowl of soup holds 1/2 of pint. How many bowls of soup will.the chef be able to fill?

Answers

Answer:

4 2/4

Step-by-step explanation:

4 1/2 + 1/2 = 4 2/4

i just added em up

Answer:

Step-by-step explanation: 4 1/2 pints / 1/2 pint/ bowl = (9/2) / (1/2) = 9/2 pints x 2 bowl/pint = 18/2 bowls = 9 bowls. QED.

Please help with explanation

1/3 of Cheryl’s savings was the same as 3/4 of Hilda’s savings.Cheryl saved $36.

(a) Find the ratio of Cheryl’s savings to Hilda’s savings.

(b) How much did Hilda save?

Answers

Answer:

a) the ratio is 9:4

b) Hilda did save $16.

Step-by-step explanation:

Let's define the variables:

C = Cheryl's savings.

H = Hilda's savings.

We know that:

(1/3)*C = (3/4)*H

We also know that Cheryl saved $36, then we have:

C = $36

Now we can replace that in the above equation to get:

(1/3)*$36 = (3/4)*H

$12 = (3/4)*H

$12*(4/3) = H = $16

Then Hilda did save $16.

And the ratio between of Cheryl's savings to Hilda's savings is:

36 : 16

We can simplify this if we divide both by 2.

(36/2) : 16/2

18 : 8

Again, we can divide both by 2:

(18/2) : (8/2)

9 : 4

Then the ratio is 9 : 4

CEOLATIONS AND INEQUALITIES
Finding angle measures of a triangle given angles with variables
In the triangle below, suppose that m U=(x+9)°, m = (2x+1), and mW=(7x)".
Find the degree measure of each angle in the triangle.

Answers

Answer:

seventeen degrees(17⁰)

Factor to write an equivalent expression for -9x+15y

Answers

Answer:

Step-by-step explanation:

-9x +15y = 3(-3x +5y) = -3(3x - 5y)

The required equivalent expression for the given expression -9x + 15y is 3(-3x + 5y).

What is the Factorization?

Factorization, also known as factoring, is the breakdown of one element into a product of other objects, or factors, which when multiplied together generate the original. For example, the number 21 factors into primes as 3 × 7, and the polynomial x² − 9 factors as (x+3)(x-3).

The given expression is given as follows:

-9x + 15y

It is required to find the factorization of the given expression.

As per the question, we have

-9x + 15y

To factor -9x + 15y, we can first factor out the greatest common factor (GCF) of -9 and 15, which is 3:

-9x + 15y = 3(-3x + 5y)

Therefore, the equivalent expression for -9x + 15y is 3(-3x + 5y).

Learn more about the Factorization here:

brainly.com/question/4184435

#SPJ3

Solve the equation 6X+2=74

Answers

Divide 2 by 74 and simplify into brackets
Subtract 2 to both sides of the equation, leaving you with 6X= 72. Then, divide both sides by 6 which would leave you with x= 12.
Hope it helps.


What decimal does the model represent?
The model below is shaded to represent 2
A 25.6
2.056
2.56
0.256

Answers

Answer:

2.56

Step-by-step explanation:

The answer is 2.56 tyytttttggggg

what is the answer
y-11=25-3y

Answers

Answer:

9

Step-by-step explanation:

y-11=25-3y

y + 3y = 25 + 11

4y = 36

y = 36 / 4

y = 9

Hope it will help :)

use the rule to write the first five terms of the pattern: Rule: add 8, subtract 4 First term: 13​

Answers

Answer:

17

Step-by-step explanation:

13 + 8 - 4

Answer:

{13, 17, 21, 25, 29}

Step-by-step explanation:

Add 8 and subtract 4 is equivalent to Add 4.

If the first term is 13, the next is 17;

the second term is 21; and

the third term is 25.

.3x+.65 x 175=.50(x+175)
Can you please explain this step by step? Kinda confused about how to figure it out.

Answers

Answer:

[tex]x=131.25[/tex]

Step-by-step explanation:

[tex]0.3x+0.65*175=0.5(x+175)[/tex]

[tex]0.3x+113.75=0.5x+87.5[/tex] (Simplify both sides of the equation by multiplying on the LHS and distributing on the RHS)

[tex]0.3x+113.75-0.5x=0.5x+87.5-0.5x[/tex] (Subtract [tex]0.5x[/tex] from both sides of the equation to get all [tex]x[/tex] terms to one side)

[tex]-0.2x+113.75=87.5[/tex] (Simplify)

[tex]-0.2x+113.75-113.75=87.5-113.75[/tex] (Subtract [tex]113.75[/tex] from both sides of the equation to isolate [tex]x[/tex])

[tex]-0.2x=-26.25[/tex] (Simplify)

[tex]\frac{-0.2x}{-0.2} =\frac{-26.25}{-0.2}[/tex] (Divide both sides of the equation by [tex]-0.2[/tex] to get rid of [tex]x[/tex]'s coefficient)

[tex]x=131.25[/tex] (Simplify)

Hope this helps!

Algebra roller coaster building it most state from the ground and it have to be 100ft

Answers

Answer:

sa taas nito ay 50 square meter kung pagbabasihan mo sa ibaba 55 square meter malaki rin sa baba kaya ang tawag dyaan ay centementer

I hope I can help you and give me a star even if I am only 5 or 4 stars and please put a heart for many

POINTS PLZ HELP!
What is the complete factorization of 8x2 − 8x + 2?

A.
2(4x − 1)2
B.
8(x − 1)(x + 1)
C.
2(2x − 1)2
D.
2(x − 2)(x + 2)

Answers

Answer:

Step-by-step explanation:

[tex]step^ 1=>2(4x^{2} -4x+1)\\step^2=> 2(2x-1)^2[/tex]



Jollibee employs a total of 10 cashiers and 15 kitchen crews. The manager selects a team of 2 cashiers and

4 kitchen crews for a graveyard shift. In how many ways can the manager select a team?

Answers

Answer:

The manager can select a team in 61425 ways.

Step-by-step explanation:

The order in which the cashiers and the kitchen crews are selected is not important. So we use the combinations formula to solve this question.

Combinations formula:

[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

In how many ways can the manager select a team?

2 cashiers from a set of 10.

4 kitchen crews from a set of 15. So

[tex]T = C_{10,2}*C_{15,4} = \frac{10!}{2!(10-2)!}*\frac{15!}{4!(15-4)!} = 45*1365 = 61425[/tex]

The manager can select a team in 61425 ways.

Pleaaase help this is due today

Answers

Answer:

umm look it up

Step-by-step explanation:

which one is the answer

Answers

Answer:

Two

Step-by-step explanation:

the triangle Loom is made from wood strips shaped into a 45 45 90 triangle. pegs are placed every half inch along the hypotenuse and every quarter inch along each leg. suppose you make a loom with an 18 inch hypotenuse. approximately how many pegs will you need ​

Answers

Answer:

36 pegs (for the hypotenuse)

About 51 pegs (for the legs)

138 pegs (total)

Step-by-step explanation:

Along the hypotenuse, the pegs are placed every half-inch. That would make 2 pegs per inch. Multiply 2 x 18 to get 36.

The legs are each 9 sqrt 2. This is 12.7279220614. The pegs are placed at each quarter inch for the legs. This is 4 per inch. So multiply 12.7279220614 x 4 to get 50.9116882454. Round this to 51.

Add 51 + 51 for the legs total pegs. You get 102. Add 102 + 36 to get 138 pegs total.

Hope it helps!

The radii of the pedal sprocket, the wheel sprocket, and the wheel of the bicycle in the figure are 4 inches, 2 inches, and 14 inches, respectively. A cyclist is pedaling at a rate of 1 revolution per second.

(a) Find the speed of the bicycle in feet per second and miles per hour.
ft/sec
mph

(b) Use your result from part (a) to write a function for the distance d (in miles) a cyclist travels in terms of the number n of revolutions of the pedal sprocket.
d =


(c) Write a function for the distance d (in miles) a cyclist travels in terms of time t (in seconds). Compare this function with the function from part (b).
d =

Answers

C is the answer!!! :D

Jolyn was paid $340 last week working 17 hours. What was Jolyn’s hourly pay? Do not include the units in your answer

Answers

Answer:

20

Step-by-step explanation:

It is mentioned that Jolyn made $340 in 17 hours last week. In order to evaluate this, you'll have to divide the money earned by the hours worked.

[tex]\frac{340}{17} =20[/tex]

Therefore, Jolyn makes $20 an hour as 20 x 17 = 340 which is correct,

What is 23% over a 100​

Answers

Answer:

0.0023 or 23 / 10000

Step-by-step explanation:

23% = 0.23

0.23 / 100 = 0.0023

Answer:

23

Step-by-step explanation:

anything over 100 s a percent

like 15/100 is 15%

10 points
Howie planted a tree in his front yard three months, one week, and two days ago. If today is May 15th, what day did Howie plant the tree in his yard? A. February 6 B. February 15 C. August 15 D. August 24

Answers

Answer:

February 6th

Step-by-step explanation:

3 months before may 15 is February 15. Subtract 9 from 15 (1 week and 2 days) and you get 6 which leads you to your answer.

Answer:

FEB 16

Step-by-step explanation:

digits to write the value of the 5 in this number.587,096​

Answers

Answer: what does the question even mean

Step-by-step explanation:

5.87096 x 10^-1 Is that what you are looking for?

PLEASE HELP !!! ILL GIVE BRAINLIEST!! *DONT SKIP* ILL GIVE 40 POINTS.

Answers

Answer:

5.5

Step-by-step explanation:

The answer is 5.5 to you answer.hope it helps

A(n)?
is a number that is a multiple of two or more numbers.

Answers

Akbwjdnd skbdjdbsjdbdbdjdjbd

Solve the inequality for x.
X-3/4>=-1/8
Simplify your answer as much as possible

Answers

ExplanationGiven the Inequality.

[tex]x - \frac{3}{4} \geqslant - \frac{1}{8} [/tex]

Solve the Inequality for x-term.

[tex]x \geqslant - \frac{1}{8} + \frac{3}{4} [/tex]

Make both fractions to have same denominators by multiply 2 in 3/4 for both numerator and denominator.

[tex]x \geqslant - \frac{1}{8} + \frac{3 \times 2}{4 \times 2} \\ x \geqslant - \frac{ 1}{8} + \frac{6}{8} \\ x \geqslant \frac{5}{8} [/tex]

Hence, the solution is, "x is greater or equal to 5/8."

Answer

[tex] \large \boxed{x \geqslant \frac{5}{8} }[/tex]

Solve.
The number line shows xx
3
ODIO
AN
1
a.
Each fourth on the number line is divided into
how many equal parts?
b. Each of these parts is what fraction of the whole?
C.
How many eighths of the whole are shaded?
d. -
X

Answers

Step-by-step explanation:

answer for d is 3 over 8....

that's all I know from the qn and can help u... sorry

Solve the right triangle round your answer to the nearest tenth

Answers

Answer/Step-by-step explanation:

✔️A = 180° - (50° + 90°) (sum of triangle)

A = 40°

✔️Find a:

Reference angle = 50°

Opposite = 17

Adjacent = a

Therefore, using trigonometric ratio, we have the following:

Tan 50 = 17/a

a = 17/tan 50

a = 14.3 (nearest tenth)

✔️Find c using Pythagorean Theorem:

c² = a² + b²

c² = 14.3² + 17²

c = √493.49

c = 22.2 (nearest tenth)

A stack of 500 pieces of paper is 1.9 inches tall. How thick is each piece of paper?

Answers

Answer:

0.00375 inches thick

Two rectangles are similar the sides of the larger rectangle have lengths of 24 and 30 inches the perimeter of the smaller rectangle is 27 inches find the length of the shorter side of the smaller rectangle

Answers

Answer:

small rectangle sides are 7.5 and 6

Step-by-step explanation:

Large rectangle perimeter=30+30+24+24=108

Small rectangle perimeter=27

27 is one fourth of 108 so:

small rectangle sides are 30/4 and 24/4

small rectangle sides are 7.5 and 6

Answer:

i have no clue

Step-by-step explanation:

it is really hard and i need help with it myself

Other Questions
Does anybody know the answer??? Why do you need to install application program/software in your computer? por fa necesito ayuda Imagina un contexto de paz y descrbelo en mnimo 10 lneas. Para saber qu es un contexto y cules son sus elementos. There is a cube that is 1 unit long, 1 unit wide,and 1 unit deep. What is the volume of thiscube?a. 4 cubic unitsb. 3 cubic unitsc. 2 cubic unitsd. 1 cubic unit A cell that is placed in distilled (plain) water will swell up because it fillswith water. Which process causes the cell to swell? Solve the system 9x^2 + 4(y - 2)^2 = 36x^2 = 2y how would you describe what the cells of each stage of the cycle look like ? what are the visible features of the cells. Interphase, Prophase, Metaphase, Anaphase, Telophase, and Cytokinesis After two half-lives, how much of the original material has decayed? 25 percent 50 percent 75 percent 100 percent After two years,Nepali media branded the situation a'failure'.Give two reasons to support the statement.(from the lesson After the Nepal Earthquake:Survivors and Heros) what is 7/12 x 3 as a fraction in simplest form CEOLATIONS AND INEQUALITIESFinding angle measures of a triangle given angles with variablesIn the triangle below, suppose that m U=(x+9), m = (2x+1), and mW=(7x)".Find the degree measure of each angle in the triangle. Read the following paragraph and then answer the question that follows:Video games can kill! That is what many who support legislation banning violent titles fromunderage players have stated. These supporters of video game reform cite studies that showincreased statistics of violence among children who play games regularly at home. Opponents ofthis reform, however, have expressed doubts about the validity of the studies, requesting thatfurther research be done before a dramatic statement is made about all gamers. It seems thatthe rising popularity of video games among youth has spiked a political debate that may last forseveral more years to come.Which sentence from this paragraph is an example of the support? (5 points)Select one:a. These supporters of video game reform cite studies that show increased statistics ofviolence among children who play games regularly at home.b. That is what many who support legislation banning violent titles from underage playershave statedc. Video games can kill!d. It seems that the rising popularity of video games among youth has spiked a politicaldebate that may last for several more years to come. this is funny lm.aoooooooooooo Which of the following is NOT important when writing a biography? a. Research the historical time period of your subject. b. Choose very old sources to enhance credibility. c. Research your subject thoroughly. d. Cross-reference materials. A technician is rebuilding an engine and notices that one tooth is missing from the crank sensor pulse ring. Technician A says the pulse ring is broken and will have to be replaced. Technician B says that missing tooth identifies when cylinder #1 is at TDC and that the missing tooth is normal. Who is correct?A.Tech AB.Tech BC.Both A and BD.Neither A nor B Will mark as brainliest !What is free enterprise?A. The ability to tap into government funds to start up a businessB. The opportunity to start up and run a business for freeC. The freedom from business taxes and regulationsD. The opportunity for an individual to start up and run a business ofhis or her choice the sun kepps all of the planets orbdeing it because Earth science pleas help............... 7. Which of the following expressions contains like terms?5xy - 13y5x - 13xy5xy - 13x5xy - 13xy If the opponent shoots at the wrong hoop does the other team receive the points?