All categories

3 years ago

Minimum list price $ (10,800-14,000-11,600-6800)

Mathematics

1 answer:

3241004551 [841]3 years ago

6 0

9514 1404 393

Answer:

minimum $11,600
maximum: $14,000

Step-by-step explanation:

The graph shows price decreases with age, so the minimum price will be associated with cars that are 3 years old. We read from the graph that the price of a 3-year-old car is about $11,600. (This is slightly more than halfway between the $11,000 and $12,000 grid lines.)

The maximum will be associated with a 2-year-old car. We can read the graph to find the price of a 2-year-old car is $14,000. That value is on the grid line, so no guessing is necessary.

Then we have ...

minimum: $11,600

maximum: $14,000

_____

Additional comments

We'd like to check our guess of the minimum using the given price equation. Filling in x=3 in the equation, we get ...

2400·3 +6800 = 7200 +6800 = 14,000 . . . . matches the maximum, not the minimum

We observe that the equation has a positive coefficient for x, so will be the equation of a rising line, not the falling one shown on the graph.

For "fun", we can check to see what the equation gives for x=2:

2400·2 +6800 = 4800 +6800 = 11,600 . . . . matches the minimum, not the maximum

This gives us some confidence that our choice of numbers is correct, but makes it clear that the equation is incorrectly written.

The problem needs to be reported, so it can be fixed.

You might be interested in

Last year the six grade enrollment at Main middle school was 612 students this year the enrollment is 489 students which best re

Marrrta [24]

Answer: 20.1% or 20% depending on your teacher

Step-by-step explanation:

612-489=123 123/612= 0.200980392 round to 0.201 move decimal two spaces to the right to make it a percent 20.1% or 20% depending on your teacher.

3 0

3 years ago

The cake recepi calls for 3 cups of sugar to every 2 cups of flour. if i use 9 cups of sugar how many cups of flour will i need?

scZoUnD [109]

Answer: 6cups of flour

Step-by-step explanation:

3cups of sugar to 2cups of flour

9cups of sugar to xcups of flour

Let sugar rep s

Flour rep f

So we have;

3s=2f

9s= xf

Cross multiply

3s×xf=2f×9s

Xf=2f×9s/3s

Xf=6f

Therefore, 9cups of sugar will be to 6cups of flour

7 0

4 years ago

The following are the ages (years) of 5 people in a room:

goblinko [34]

Answer:

3 years old

Step-by-step explanation:

( 21 + 24 + 18 + 15 + 15 + x ) / 6 = 16

93 + x = 96

x = 3

The person who entered the room is 3 years old.

7 0

3 years ago

Read 2 more answers

A, b, and c are collinear, and B is between a and c. The ratio of AB to AC is 1:2. If A is at (7,-1) and B is at (2,1) what are

Nutka1998 [239]

Answer:

C(-3,3)

Step-by-step explanation:

Given

A = (7,-1)

B = (2,1)

AB:AC = 1:2

Required

Determine the coordinates of C

Since, B is between A and C; we need to determine ratio BC as follows;

$AB:AC = 1:2$

Convert to division

$\frac{AB}{AC} = \frac{1}{2}$

AC = AB + BC;

$\frac{AB}{AB + BC} = \frac{1}{2}$

Cross Multiply

$2 * AB = 1 * (AB + BC)$

$2 AB = AB + BC$

$2AB - AB = BC$

$AB = BC$

Divide both sides by BC

$\frac{AB}{BC} = 1$

Rewrite as

$\frac{AB}{BC} = \frac{1}{1}$

Write as ratio

$AB:BC = 1:1$

Next is to determine the coordinates of C as follows;

Because B is between both points. we have:

$B(x,y) = (\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n})$

Where

$m:n = AB:BC = 1:1$

$B(x,y) = B(2,1)$

$A(x_1,y_1) = A(7,-1)$

So; we're solving for x2 and y2

$B(2,1) = (\frac{mx_2 + nx_1}{m+n},\frac{my_2 + ny_1}{m+n})$

Where

Solving for x2;

$x = \frac{mx_2 + nx_1}{m+n}$

$2 = \frac{1 * x_2 + 1 * 7}{1+1}$

$2 = \frac{x_2 + 7}{2}$

Cross Multiply

$2 * 2 = x_2 + 7$

$4 = x_2 + 7$

$x_2 = 4 - 7$

$x_2 = -3$

Solving for y2;

$y = \frac{my_2 + ny_1}{m+n}$

$1 = \frac{1 * y_2 + 1 * -1}{1+1}$

$1 = \frac{y_2- 1}{2}$

Cross Multiply

$2 * 1 = y_2 - 1$

$2 = y_2 - 1$

$y_2 = 2 + 1$

$y_2 = 3$

Hence, the coordinates of C are: C(-3,3)

4 0

4 years ago

Yoga fun charges a $62 starting fee plus$11 per class. Yoga for all charges no starting fee and $20 per class for how many class

Artemon [7]

Hey!

-------------------------------------------------

Yoga Fun: 62 + 11 = 73 (y-intercept)

Yoga For All: 20 (y-intercept)

-------------------------------------------------

First Class:

Yoga Fun: $73

Yoga For All: $20

Second Class:

Yoga Fun: $84

Yoga For All: $40

Third Class:

Yoga Fun: $95

Yoga For All: $60

Fourth Class:

Yoga Fun: $106

Yoga For All: $80

Fifth Class:

Yoga Fun: $117

Yoga For All: $100

Sixth Class:

Yoga Fun: $128

Yoga For All: $120

Seventh Class:

Yoga Fun: $139

Yoga For All: $140

-------------------------------------------------

Answer:

So we can see that the cost won't be exactly the same but it will be roughly the same when it's the sixth class.

-------------------------------------------------

Hope This Helped! Good Luck!

3 0

3 years ago