Mathematics College

7) You buy a new car for $25,000 and it begins
to depreciate value as soon as you drive it off
the lot. The car depreciates at an annual rate
of 7%. Write an exponential equation that
shows what is happening to the value of the
car over time.

Answers

Answer 1

Answer:

y=25,000(0.07)^t

Step-by-step explanation: t= year/month. not specified, but year is most appropriate for these kind of equations.

Related Questions

Give three examples of equations where there would be no solution

Answers

Answer:

1) 2x+1 = 2x-4

2) 6x+2=3(2x+1)

3) -4x -5=-2(2x)+2

Step-by-step explanation:

We need to give three examples of equations where there would be no solution.

First we will define equation with no solution.

If solving an equation you get the result as 3=5 but 3 is not equal to 5, so the equation has no solution.

Examples of equations where there would be no solution

1) 2x+1 = 2x-4

2x-2x=-4-1

0=-1 ( false)

So, the equation has no solution.

2) 6x+2=3(2x+1)

6x+2=6x+1

6x-6x=1-2

0=-2 (false)

So, the equation has no solution.

3) -4x -5=-2(2x)+2

-4x-5=-4x+2

-4x+4x=2+5

0=7 (false)

So, the equation has no solution.

2+5xi-3y=14+3x-5yi.Find x and y​

Answers

Question:

[tex]5x-3y=14[/tex]

[tex]3x-5y=2[/tex]

Find x and y

Answer:

[tex]x = 4[/tex]

[tex]y =2[/tex]

Step-by-step explanation:

Given

[tex]5x-3y=14[/tex]  -- (1)

[tex]3x-5y=2[/tex] -- (2)

Required

Find x and y

We'll solve this using elimination method.

Multiply (1) by 3 and (2) by 5 to eliminate x

([tex]5x-3y=14[/tex]) * 3

([tex]3x-5y=2[/tex]) * 5

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

[tex]15x - 9y = 42[/tex]

[tex]15x - 25y =10[/tex]

Subtract

[tex]15x - 9y = 42[/tex]

- ([tex]15x - 25y =10[/tex])

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

[tex]15x - 15x - 9y + 25y = 42 - 10[/tex]

[tex]- 9y + 25y = 42 - 10[/tex]

[tex]16y = 32[/tex]

Make y the subject

[tex]y = \frac{32}{16}[/tex]

[tex]y =2[/tex]

Substitute 2 for y in [tex]5x-3y=14[/tex]

[tex]5x - 3 * 2 = 14[/tex]

[tex]5x - 6 = 14[/tex]

Collect Like Terms

[tex]5x = 14+6[/tex]

[tex]5x = 20[/tex]

Make x the subject

[tex]x = \frac{20}{5}[/tex]

[tex]x = 4[/tex]

what are the zeroz of f ? HELPP‼️‼️‼️‼️

Answers

Answer:

HEYY OK SO THE ANSWER IS D

Step-by-step explanation:

1/3 AND 3/2

Drag and drop the angle pairs to correctly match their description.

Answers

Answer: top left goes to top bottom left goes to bottom, top right goes to 3rd box and bottom right goes to the 2nd box

Simplify one or both sides by combing like terms X=8-3

Answers

Answer:

x=5

Step-by-step explanation:

All you have to do is subtract 8-3 and you get 5, which makes ur answer simplified, you cant simplify x.

Answer:

[tex]x = 5[/tex]

Step-by-step explanation:

[tex]x = 8 - 3[/tex]

[tex]x = 5[/tex]

Please help!!!!!
(50 points)

Answers

It’s number two I think not sure if it’s right though

Answer:Hope this helps

Step-by-step explanation:

Question 5 (4 points)
(06.01)
Evaluate the expression 43+ (7 - 3) * 2. (4 points)
Blank 1:

Answers

Answer:

43+ (7 - 3) * 2 = 51

Step-by-step explanation:

43 + (7 - 3) x 2

First, you want to do what is in the parenthesis

43 + 4 x 2

Now, you want to multiply.

43 + 8

Next, you simplify.

51

If there are 12 boys and 24 girls in a room, fill out all of the possible ratios of boys to girls that could be made.

Answers

Answer:

A and B can be correct

Step-by-step explanation:

12:24 and 1:2 are both equal to each other

Answer:

A and B can be correct

Step-by-step explanation:

12:24 and 1:2 are both equal to each other

What are the two solutions of x^2-2x-4=-3x+9

Answers

Answer:

the x-coordinates of the intersection points of the graphs of y = x2 – 2x – 4 and y = –3x + 9

Step-by-step explanation:

Please answer number 4 please

Answers

Answer:

x < -2.5

Step-by-step explanation:

N/A

A man spend 10% of his salary on rent, 25% on food, 18% on transportation and the balance he saves. If his salary is $1500 per month, how much does he save each month?

Answers

Answer:

He saved $705 pls mark brainliest

Step-by-step explanation:

So 10% is $150 and 25% is 375 and 18% is 270 so you would add all those togeather to get 795 and 1500-795 is 705 so he saved $705!

Can someone answer this question for me

Answers

$18.75, i’m pretty sure :)
$18.75 is the correct answer

HELP PLEAE GIVING BRAINLIEST! MEAN A LOT IF YOU HELP! :)
HELP SOLVE

Answers

Answer:

160

Step-by-step explanation:

Muliply both sides by 20/3 to get e=20/3*24=160

Answer:

e = 160

Step-by-step explanation:

20 * 3/20e = 24 * 20

3e = 480

3e/3 = 480/3

e = 160

PLEASE ANSWER ASAP !!!!!!!!!!!!!!!!!!! WILL GET BRAINLEST IF CORRECT!!!!!!!!!!!!!!!!!!!!!!

Answers

The answer to the question is C

PLZ HELP WILL GIVE BRAINLEST

Answers

Answer:

The first one (Cedric is correct because he used the inverse of subtraction and added 4.5)

Step-by-step explanation:

First....I'll do it my way

z - 4.5 = -1.5

Add 4.5 on both sides

z - 4.5 + 4.5 = -1.5 + 4.5

z = 3

This should be our answer.....and so who did it right?

Cedric did

Which is the true statement?

Cedric is correct because he used the inverse of subtraction and added 4.5

Hope this helped!

Have a supercalifragilisticexpialidocious day!

Which represents a function?

Answers

Answer:

[tex] \boxed{ \text{Option \: D}}[/tex]

Step-by-step explanation:

All the relations are not functions. We can determine ( identify ) whether a relation is function or not by drawing a vertical line intersecting the graph of the relation. This is called vertical line test.

If the vertical line intersects the graph of a relation at one point , the relation is a function .If it cuts at more than one point , it is not a function. It means that if there are more points of the graph of a relation of a vertical line , same first component ( pre - image ) has more images ( second component ) which is not the function by definition.

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

Let's check all of the options :

☐ Option A :

The vertical line cuts the graph at two points. So , the graph does not represent a function.

☐ Option B

No! This is also not a function as the vertical line cuts the graph at two points.

☐ Option C

Nah! This too can't be called a function as the vertical line cuts the graph at two points.

☑ Option D

Yep! The vertical line cuts the graph at one point. Thus , the graph represents a function.

Yayy!! We found our answer. It's ' Option D '.

Hope I helped ! ツ

Have a wonderful day / night ! ♡

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

7x7x7x7x7x7= ______ to the power of _____ .

Answers

Answer:7 to the power of 5

Step-by-step explanation:

What’s the volume of this question

Answers

Answer:

A. 618.74 cubic inches.

Explanation:

V cylinder= πr²×h

V rectangular prism= w×h×l

Answer:

Option A is the right answer

9y-7=56 y=?: show work

Answers

Answer:

53.12

Step-by-step explanation:

1234567890

Answer:

y = 7

Step-by-step explanation:

9y - 7 = 56

       +7     +7

9y = 63

/9     /9

y = 7

(/9 = divided by 9)

check :  9 x 7 = 63 ( 63 - 7 = 56) correct!

Round 694 to the nearest 100

Answers

Answer:

700

Step-by-step explanation:

694 is closer to 700 than it is to 600.

Help me out with the answer

Answers

Answer:

C i think

Step-by-step explanation:

A contractor has 12 gallons of paint which will cover 2,712 square feet. Which of the following rates best represents the relationships between the number of square feet and the number of gallons of paint?
A. 226 gallons of paint per square foot
B. 2,712 gallons of paint per square foot
C. 226 square feet per gallon of paint
D. 12 square feet per gallon of paint

Answers

The answer would be C | 2,712/12=226

Cost price = $675 and loss% = 92%

Answers

You would have $54 left. Hope this helped.


Consider a cookie recipe in which 1 1/2 cups of chocolate chips to make cookies. Lara wants to double the number of 25 cookies. How many cups of chocolate chips should she use?

Answers

Answer:

3 cups

Step-by-step explanation:

Double 1.5 to get 3.

Lara would need 3 cups of chocolate chips

The cookie recipe uses of [tex]1\frac{1}{2}[/tex] cups of chocolate chips to make 25 cookies. The ratio of chocolate chips to cookies is [tex]1\frac{1}{2}[/tex] : 25

If Lara wants to double the number of cookies she wants to make, it means she wants to make 50 cookies (25 x 2). In order to determine the cups of chocolate chips that she would need, we also need to double the cups of chocolate chips

Chocolate chips needed = [tex]1\frac{1}{2}[/tex] x 2

Convert the mixed fraction to an improper fraction

3/2 x 2

= 3 cups

A similar question was solved here : https://brainly.com/question/14379402?referrer=searchResults

Can someone help? Will give brainliest!! Ty

Answers

7.2

a^2 + b^2 = c^

a=6

b=4

36+16=c^2

52=c2

root both sides

7.2=c

The Time series graph gives some information about the number of umbrellas sold in a shop in the first 6 months of 2015.
The sales target for the first 6 month of 2015 was to sell a mean of 65 umbrellas per month.
Did the shop meet this target? Show how you got your answer.
Thanks :)

Answers

Answer:

no

Step-by-step explanation:

Diboseng has cut a drum in half to use as a water-trough for his cattle. The length of the trough is 140 cm and the diameter is 90 cm

Answers

what’s the question ?

Find the total surface area of this cubiod

Answers

Answer:

148 cm^2.

Step-by-step explanation:

It has 2 surfaces of area 5*6, 2 of  5*4 and 2 of 4*6.

= 2*30 + 2*20 + 2*24

= 60 + 40 + 48

= 148 cm^2.

Enter the number that belongs in the green box

PLEASE HELP FAST

Answers

The answer in the green box should be 9.

100 point please help me

Answers

Answer:

it says 5 points

Step-by-step explanation:

Answer:

2m+4

(twice the students in maths(2m) plus four more (+4))

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