How many times larger is 4.5 x 105 than 1.8 x 10%?
A. 2.5
B. 270
C. 250
D. 50

1.) x = 3.5

2.) x = -40

3.) x = -10

Answer:

The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other.

Step-by-step explanation:

Answer:

I suggest that you use Socratic to solve this.

Step-by-step explanation:

Answer:

[tex]x=\frac{-3}{2}[/tex]

Step-by-step explanation:

[tex]2 + 4 ( x + 1 ) = 0[/tex]

[tex]2 + 4x + 4 = 0[/tex]

[tex]6 + 4x = 0[/tex]

[tex]4x = -6[/tex]

[tex]x = \frac{-3}{2}[/tex]

I will assume that we want to find the function that predicts the value of the car after x years, which likely is an exponential decay.

The function is: f(x) = $25,000*(0.85)^x

And the graph can be seen at the end of the answer.

We know that the value of the car decreases by 15% each year, then we can model this with an exponential decay.

The general exponential decay is given by:

f(x) = A*(1 - r)^x

Where:

A is the initial value, then we have A  = $25,000

x is the variable, in this case, would represent time in years.

r is the rate of decay, in this case, is the quotient between the percentage that decreases and 100%, so we will get: r = 15%/100% = 0.15

Then the exponential equation is:

f(x) = $25,000*(1 - 0.15)^x

     = $25,000*(0.85)^x

This is the function that models the value of the car after x years, the graph can be seen below.

If you want to learn more, you can read:

https://brainly.com/question/19599469

Answer:

say whaaaaaaaaat

Step-by-step explanation:

Step-by-step explanation:

8+x-6-5=8x+1-3x

-3+x=5x+1

-3+x-x=5x-x+1

-3=4×+1

-3-1=4x+1-1

-4=4x

-4/4=4x/4

x= -1

Answer:

oh thats easy it is C

Step-by-step explanation:

Answer:

54

Step-by-step explanation:

As ◇PQS is congruent to ◇ PRS,

6n + 3=4n+11

n=4

QR=6×4+3+4×4+11

Answer:

30

Step-by-step explanation:

Answer:

26.6

Step-by-step explanation:

(12*5)-(8.35*4)

60-33.4

26.6

Step-by-step explanation:

The slope of a line characterizes the direction of aline. To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points .

Answer:

the slope of the line would be 1/2 I think

Answer:

c can br used using the number line

Answer:

I believe its A

Step-by-step explanation

HOPE THIS HELPS

Answer:

ITS ONE

Step-by-step explanation:

WHEN YOU MULTIPLY 1X1 YOU GET ONE

Answer:

A 23a^2 + 6/12a^2

Step-by-step explanation:

2a+1/3a + 5/4 -2a-3/6a^2

=4(2a+1)+15a/12a - 2a-3/6a^2

=a(8a+4+15a^2)-{2(2a-3)}/12a^2

=8a^2+4a+15a^2-4a+6/12a^2

=23a^2+6/12a^2

Answer:

35 left is 2 i think

Step-by-step explanation:

Answer:

  10 units

Explanation:

Answer:

D

Step-by-step explanation:

x and y go up at a constant rate (or you can say it has a CROC or constant rate of chacge) y going up 5 for every one x

with our equation being y = 5x + 5

hope this helps <3

Answer:

Step-by-step explanation:

It would be D because to know if its linear, x has to increase by 1 and y by a constant rate.

X increases by 1 and y increases by 5

I've attached a graph for you to see

If you have any further questions, don't be afraid to reach out! I hope this helps!

all you have to do is 4 / 72

Step-by-step explanation:

4÷72

Answer:

18

Step-by-step explanation:

you divide 72 by 4

Answer:

(-2, -2)

Step-by-step explanation:

Answer:

(-2,-2)

Step-by-step explanation:

M a t h w a y

Answer:

The answer is C. 18 units

Step-by-step explanation:

Please mark brainliest

Hope this helps!

Answer:

C) 18 square units

Step-by-step explanation:

There are many ways to go about solving this.  You could divide it into two triangles with a middle section.  But it might be easier just to count the squares:

whole squares = 12

half squares = 4 (which equals 2)

3/4 square = 4

1/4 squares = 4

(add the 3/4 and 1/4 squares to equal 4)

12+2+4=18

Answer:

Sara's number is 28

Step-by-step explanation:

Let's assign Sara's number the variable x and solve this equation using the information provided.

"If you subtract 14 from my number"

x - 14

"and multiply the difference by - 3"

-3(x - 14)

"the result is – 42."

-3(x - 14) = -42

Now we can solve from here for x.

-3(x - 14) = -42

x - 14 = 14

x = 28

Answer: 40, -16,-9

Step-by-step explanation:

A. -10+30-20+40

    -30+70

     70-30

      40

b -51+35-0

   35-51

    -16

c. -6+2-8+3

   -14+5

     5-14

      -9

Answer:

Step-by-step explanation:

If J and K are complementary, then J + K = 90. If J is 18 less than K, then:

J = K - 18. Now we have a system. We'll sub in K - 18 for J to the first equation:

K - 18 + K = 90 and

2K - 18 = 90 and

2K = 108 so

K = 54

Now that we know K, we'll sub in to find J:

J + 54 = 90 so

J = 36

Answer:

4

Step-by-step explanation:

Slope is x2-y2/ x1-y1

So, its 6-10/1-2

or, -4/-1

Or 4.

Hope this helps you!

#Team Rainbows.

Answer:

4.

Step-by-step explanation:

The slope = (difference in y coordinates) / (corresponding difference in the x coordinates)

= (10-6)/ (2-1)

= 4 / 1

= 4.

Answer: b

Step-by-step explanation: edge 2020

Answer: x= 7/10

Y= 21/5

Step-by-step explanation:

Answer: 40

Step-by-step explanation: -7 + 3 (-12) -(3)

                                               -7 - 36 + 3

                                                      -40

Answer:(all negative) 14 13 12 11 10

Step-by-step explanation: sall good

Answer: the domain and range are undefined. The function is continuous.

Step-by-step explanation:

Google

Answer:

The answer is 24 times