I need help with this

Answer:

y = 7x-17

Step-by-step explanation:

y=mx+ c

substitute the values,

-3=14+c

c=-17

y=7x-17

Answer:

How to calculate the percentage of a number. Use the percentage formula: P% * X = Y. Example: What is 10% of 150?

Answer: After 5 bags of mulch, the cost for both companies will be the same.

Step-by-step explanation:

The cost for Company can be represented by the equation: y= 10m+100

The cost for Company B can be represented by the equation: y= 30m

To find the amount of mulch, their cost needs to be the same, I will solve for m

10m+100=30m

-10m 10m

100=20m

Divide both side by 20

100/20=20m/20

5=m or m=5

So after 5 bags of mulch, the total cost for both companies is the same.

Answer:

9    10     10   17   3

Step-by-step explanation:

Answer:

Each boy recieved $25.25 each

Step-by-step explanation:

First, you add up all the money the 3 boys spent.

15+15+15=45

Then you add the sum of the equation to the amount all the boys had afterward.

45+30.75=75.75

Finally, you divide that product to 3 boys.

75.75/3=25.25

Therfore the answer is $25.25 each.      

Answer:

3x+5

Step-by-step explanation:

combine like terms add the variables together, then its simplified

Answer:

0/8

Step-by-step explanation: i tried my best

Answer:

9/11

Step-by-step explanation:

4/11 divided by 4/9=

4/11 x  9/4= 1/11x9=

9/11

5b+12c=105    She can buy 21 Books or 8 CDs and 1 book or a variation of both.

I think the answer is

22.5 meter

it is because 7.5 meter ×4=30m

so 7.5+7.5+7.5=22.5 m

Answer:

X=-2 (The slope is - 2/1)

Answer:

joe=6

Sam=11

Step-by-step explanation:

lets see...

i explain 1by1

firstly we know that joe is 5 - 3 x Sam

(read the sentences VERY CAREFULLY)

then, we put Sam as math variable "s"

it will be; 5-3 x S

[tex]5 - 3 \times s[/tex]

the total of their age is 28

[tex]5 - 3 \times s = 28[/tex]

simplify it

it will be 5-S3=28

then you will get 11 right

that will be sam's age

-5 and it will be Joe's age

Step-by-step explanation:

If it looks like this: < with a line under it then it's called a less than or equal to sign.

If it looks like this: > with a line under it then it's a greater than or equal to sign

Answer:

Option D is the answer : 8.8 * 10^-5

Answer:

(a)

1 sig: 0.005

2 sig: 0.0048

3 sig: 0.00482

(b)

1 sig: 50

2 sig: 50.

3 sig: 50.0

(c)

1 sig: 0.0010

2 sig: 0.00098

3 sig: 0.000981

Step-by-step explanation:

Significant Figures Rules:

(a)

0.004816 - the zeros are placeholders, so they do not count as sig figs.

(b)

50.00168 - the zeros are between 2 significant figures, so they do count as sig figs.

(c)

0.0009812 - the zeros are placeholders, so they do not count as sig figs

Answer:

number 4: 8, 15,17

Step-by-step explanation:

This is all just the theorem that a^2+b^2=c^2 so I tried that for all of them and number 4 is the only one that ends as a whole number. Sorry, that wasn't the best explanation but I hope you understood. Just try the theorem on each one like 4(2^2)+9(3^2) doesn't equal 16(4^2)

Answer:

x = 9-8y/7

Step-by-step explanation:

8y+7x=9

Subtract 8y from both sides.

7x=9−8y

Divide both sides by 7.

7x/7 = 9 - 8y/7

​  

Dividing by 7 undoes the multiplication by 7.

x = 9-8y/7

​  

Answer:   The area is 15 square units

Step-by-step explanation:  It is helpful to sketch the coordinates on a graph to get an idea of what the triangle looks like so you can see which side will be the base, and where to get the height. You will see that AB is the hypotenuse, it is a right triangle, so AC can be the base and BC is the height.

Use the differences in x-values of points C & A to get the length of the base:   2-(-3) is 5

Use the differences in y-values of points B & C to get the height:

4-(-2) = 6

Area = bh/2

A = 5×6/2 = 30/2

A = 15 square unts

15 degree or watt quite not sure

9514 1404 393

Answer:

  45 degrees

Step-by-step explanation:

Alternate interior angles where a transversal crosses parallel lines are congruent:

  x + 30 = 75

  x = 45 . . . . . . degrees

Answer:

Supplementary Angles

Step-by-step explanation:

When two angles add up to 90º they are complementary, when they add up to 180º they are supplementary.

Answer:

1. 1, 2, 4

2. 1, 3, 9

3. 1, 2, 4, 5, 10, 20

Step-by-step explanation:

Answer:

1. 8,12,16,20,24, etc , 2 . 18,27,36,45, etc, 3. 40,60,80,100,120,140 etc

Step-by-step explanation:

Answer: I cant understand what you want think you could put it in English?

Step-by-step explanation:

Answer:

The answer for f(2) is 11. The answer for f(x+4) is f = 3x^2 - 4x + 7 / x + 4

Step-by-step explanation:

Answer:

the first one is 3

the second one is 7

the third one is -2

and the last one is -3

Step-by-step explanation:

The equation is matched with its solutions below;

1/4x + 5/3x - 4 = 2 - 1/12x

combine like terms

1/4x + 5/3x + 1/12x = 2 + 4

(3x+20x+x) / 12 = 6

24/12x = 6

2x = 6

Divide both sides by 2

x = 6/2

x = 3

3.2b - 4.7 = 3b - 3.3

combine like terms

3.2b - 3b = -3.3 + 4.7

0.2b = 1.4

divide both sides by 0.2

b = 1.4 / 0.2

b = 7

4.6y - y + 4 = y - 1.2

combine like terms

4.6y - y - y = - 1.2 - 4

2.6y = - 5.2

divide both sides by 2.6

y = -5.2 / 2.6

y = -2

7.5c - 2.5c + 8 = - 7

5c = -7 - 8

5c = -15

divide both sides by 5

c = -15/5

c = -3

Read more on equation:

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9514 1404 393

Answer:

Step-by-step explanation:

The line representing Murphy street goes through point (0, 3) and has a slope of 2/1 = 2. Its equation is then ...

  y = mx + b

  y = 2x +3

The translation vector transforms this equation* by adding -1 to y, and replacing x with x-1.

  y = (2(x-1)) +3) -1

  y = 2x -2 +3 -1 . . . . eliminate parentheses

  y = 2x . . . . . . . . . . . the equation for Nolan street

__

Of course, adding (1, -1) to the point (0, 3) moves it to ...

  (1, -1) +(0, 3) = (0+1, -1+3) = (1, 2)

The image of (0, 3) is (1, 2).

_____

* f(x) is translated by (a, b) this way: g(x) = f(x-a) +b. Here, f(x) = 2x+3 is translated to f(x-1)+(-1) = (2(x-1) +3) -1.