Help I will mark brainliestttt plzzz

Answer:

The remaining credit after 45 minutes of calls is $18.70

Step-by-step explanation:

Here, we have a linear model to work with

Let us have the coordinates as follows;

(time calling time, credit remaining)

So we have two points as follows;

(24,21.64) and (35,20.10)

The slope will be;

(20.1-21.64)/(35-24) = -1.54/11 = -0.14

So the equation looks like;

y = -0.14x + c

To get the y-intercept, we simply substitute a point

Let us use (35,20.10)

20.10 = -0.14(35) + c

c = 20.10 + 4.9

c = 25

So the full equation is;

y = -0.14x + 25

So for 45 minutes, simply substitute 45 for x

We have this as:

y = -0.14(45) + 25

y = -6.3 + 25 = $18.70

Answer:

50

Step-by-step explanation:

solved

Answer:

B.

Step-by-step explanation:

Answer:

y = -3x + 2

extra characters down here

Answer

x= x/11 - 10/11

Step-by-step explanation:

x over 10 take away 10 over 11

Answer: Well the range of how much it fills every 2 minutes is 5.2cm

Step-by-step explanation:

Answer:

x-intercept(s):  ( 0 , 0 )

y-intercept(s):  ( 0 , 0 )

Explanation:

To find the x-intercept, substitute in  0  for  y  and solve for  x .

To find the y-intercept, substitute in  0  for  x  and solve for  y .

Let ,Cynthia invested $x

Rate = 5%per year

time = 3 year

Amount

A= P(1+r/100)^t

8000=x(1+5/100)^3

8000=x(21/20)^3

x= (8000x8000)/9261

x=6910.7$

Therefore she can invest =$6910.7 =5322.14 pound  

Answer:

175

Step-by-step explanation:

since 1 was 152 you have to add more to get number 8

Answer:

-2

Step-by-step explanation:

7 + 3 / -1 - 4

10/-5 = -2

slope is -2

Answer:

(-3,5) (6,2) (Plug in these points into (y2-y1)/(x2-x1) to find the slope)

2-5/6-(-3)

-3/9

-1/3 is the slope

y - y1 = m(x -x1) (this is point slope form)

y - 5 = -1/3 (x +3) (you plug in the x &y values from the first set of coordinates)

y -5 = -1/3x -1  (you get to slope intercept form by solving from point slope)

y = -1/3x +4 (this is slope intercept form)

Step-by-step explanation:

The answer is 5b - w + 8

Step-by-step explanation:

Answer:

-w + 5b + 8

Step-by-step explanation:

Step 1: Since you're only dealing with addition and subtraction, the easiest method is to convert all subtraction to addition by adding the opposite. There is only one case of subtraction (-4w) which can be changed to adding negative 4w:

3w + 6 + (-4w) + 3b + 2 + 2b

Step 2: Combine like terms to simplify:

3w + (-4w) = -w

3b + 2b = 5b

6 + 2 = 8

Answer:

-w + 5b + 8

Answer:

3 times 2 times 2

3 times 4 times 1

Step-by-step explanation:

those are the ones off the top of my head hope that helps

Answer:

B) y<3/2x+2

Step-by-step explanation:

cause y is less than the slope of 3/2 threw the point of 2 on the y axis

also < and > meansd its a dotted line

Answer:

14oz soup/ person

Step-by-step explanation:

the answer would be 14oz of soup/person

multiply 7 (cans of soup) by 16 (oz per can)

7*16=112

divide 112 (oz of soup total) by 8 (number of people feeding)

112/8=14

Answer:

x = -5 and x = 1

Step-by-step explanation:

4( x2 + 4x + 4 ) = 36

4x2 + 16x + 16 = 36

4x2 + 16x - 20 = 0

x2 + 4x - 5 = 0

Answer:

C. x = -5, and x = 1

Step-by-step explanation:

You have the equation 4(x + 2)2 = 36

You then isolate 4 out of the equation using division on both sides

You are left with (x+2)2 = 9

Next, take square roots

[tex]\sqrt({x} +2) ^{2}[/tex] = [tex]\sqrt{9}[/tex]

This leaves you with x + 2 ± 9

So, x = -2 + 3 = 1

or

x = -2 - 3 = -5

Answer:

-3/8 = x

Step-by-step explanation:

90% sure this is correct but my simple math may be wrong

Answer: x=9

Step-by-step explanation:

x^2-8x-9=0...

we can simplify this by adding 9 to each side... so it turns into this: x^2-8x=9

Then, we can turn x^2 to x*x because we know that anything to the power of two is itself multiplied by itself. So our new equation will be this:

x*x-8x=9

Now we know x has to be 9 because 8 is 1 less than 9. Therefore, our answer would be x (9)...

Let’s test this out... first, let’s substitute x with the number 9:

9^2-8*9-9=0. Simplify this:

81-72-9=0. We can then simplify furthers and we get:

0=0. This means that the equation is true

Answer:

C is the answer

Step-by-step explanation:

slope = -4 and y intercept =3

18 grams because 24 subtract 16 is equal to 6 and if you add 6 to 12 you get 18                          

Answer:

A triangle has sides of lengths 9,7, and 12 is not a right triangle .

Answer: 40%

Step-by-step explanation: 6/15= 0.40

Answer:

the answer will be 3+2+2=7 is the answer

Answer:

42.5

Step-by-step explanation:

those two dashes or lines on the sides of the tringle or between A and B or A and C mean that those line are the same length so I would guess your answer is the same as the other givin length which is 42.5

Answer:

4/2 for number one

Step-by-step explanation:

so what u are doing is taking the two dots and matching them itz_joy2006 hit me up on insta or snap jgichane3

Answer:

100!!

Step-by-step explanation:

Hope this helps

Answer:

100

Step-by-step explanation:

5 x 12 = 60 +10 + 10 +10 +10

60 +40= 100

Answer:

nah, thank u for the points tho

Step-by-step explanation:

Answer:

theres nothing there though

Step-by-step explanation: