Ask question

Ask question

All categories

4 years ago

8

In the first year of ownership, a new car can lose 20% of its value. If a car lost $4200 of value in the first year, how much di

d the car originally cost?

2 answers:

ollegr [7]4 years ago

7 0

Answer:

5250

Step-by-step explanation:

Sever21 [200]4 years ago

5 0

$5250
$5250-20%=$4200

You might be interested in

Find the vertices and foci of the hyperbola with equation quantity x plus one squared divided by sixteen minus the quantity of y

katrin2010 [14]

Answer:

The vertices are (3 , -5) , (-5 , -5)

The foci are (4 , -5) , (-6 , -5)

Step-by-step explanation:

* Lets study the equation of the hyperbola

- The standard form of the equation of a hyperbola with

center (h , k) and transverse axis parallel to the x-axis is

(x - h)²/a² - (y - k)²/b² = 1

- The length of the transverse axis is 2 a

- The coordinates of the vertices are (h ± a , k)

- The coordinates of the foci are (h ± c , k), where c² = a² + b²

- The distance between the foci is 2c

* Now lets solve the problem

- The equation of the hyperbola is (x + 1)²/16 - (y + 5)²/9 = 1

* From the equation

# a² = 16 ⇒ a = ± 4

# b² = 9 ⇒ b = ± 3

# h = -1

# k = -5

∵ The vertices are (h + a , k) , (h - a , k)

∴ The vertices are (-1 + 4 , -5) , (-1 - 4 , -5)

* The vertices are (3 , -5) , (-5 , -5)

∵ c² = a² + b²

∴ c² = 16 + 9 = 25

∴ c = ± 5

∵ The foci are (h ± c , k)

∴ The foci are (-1 + 5 , -5) , (-1 - 5 , -5)

* The foci are (4 , -5) , (-6 , -5)

4 0

3 years ago

Read 2 more answers

How do you solve a system of linear equations by graphing?

Sergeeva-Olga [200]

9514 1404 393

Explanation:

This is a self-answering question: you solve it by graphing the equations.

<em>The solution is where the lines intersect</em>. The point of intersection of the lines is the point that satisfies all the equations for the lines, hence is a solution to the system. If they do not intersect, there are no solutions. If the lines are coincident, there are an infinite number of solutions.

__

The equations can be graphed by any of a number of methods. (My favorite is to let a graphing calculator do it.) The method of choice depends on the coefficients and the form the equations are given in. Methods of graphing are a topic for a more lengthy discussion.

6 0

3 years ago

You have already traveled 25 miles. If you continue driving at the same speed, x miles per hour, for 5 more hours, you will trav

Fiesta28 [93]

Answer:1

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Fill in the missing terms of the arithmetic sequence,<br> -7. 1,5-13

LenKa [72]

Answer:

-3, 9

Step-by-step explanation:

The constant is 4.

7 0

3 years ago

Please please help !!! will give brainliest to first correct answer

Oksi-84 [34.3K]

Answer:

[See Below]

Step-by-step explanation:

❶ It is irrational because to make it repeating it must be <u>EXACT</u>. In this case it is adding a 0 after every 1. So it'd be irrational since it doesn't have an end.

❷ Irrational because no one knows the end of pi. It doesn't have an ending so therefore irrational.

~<em>Hope this helps Mate. If you need anything feel free to message me. </em>

3 0

3 years ago