Help needed ASAP will give BRAINLIEST

Answer: There are a total of 12 rocks

Step-by-step explanation:

Answer:

Pete's: [tex]f(x) = 20x + 60[/tex]

Carla's: [tex]f(x) = 40x + 20[/tex]

Step-by-step explanation:

Let's assume that [tex]x[/tex] is the amount of rooms painted, and [tex]f(x)[/tex]

For Pete's Painting Company, they charge a flat fee of $60, so we will have a constant of 60.

They also charge 20$ per room, meaning that we will multiply 20 by [tex]x[/tex], the amount of rooms painted.

This gets us the function [tex]f(x) = 20x + 60[/tex]

For Carla's Creative Colors, they charge 20$ to hire the workers, meaning this will be our constant.

They also charge $40 a room, meaning we will multiply 40 by [tex]x[/tex], the amount of rooms painted.

So the function is  [tex]f(x) = 40x + 20[/tex].

Hope this helped!

Answer:

-4

Step-by-step explanation:

Answer:

the correct answer is 20 .

Step-by-step explanation:

x^2 - ( x + 4 ) - y = ?

6^2 - ( 6 + 4 ) - 6 = ?

36 - ( 10 ) - 6 = ?

26 - 6 = 20

Answer:

1.1

Step-by-step explanation:

As we move left, we multiply by 10 to obtain the new place value.

Factors of 51: 1, 3, 17, 51

Factors of 68: 1, 2, 4, 17, 34, 68

As you can see the greatest common factor of both numbers is 17.

Therefore, the answer is C.

Best of Luck!

Answer:

the square root of 2 is irrational because it cannot be written as a ratio or fraction.

Step-by-step explanation:

Answer:

184 jumping jacks = 4 minutes

Divide by 4 on both sides.

4/4 = 1

184/4 = 46

Delilah does 46 jumping jacks in 1 minute.

Answer:

Domain: 1, 6

Range: 4

Step-by-step explanation:

The Domain is the first coordinate which is x

The Range is the second coordinate which is y

Hope This Helps :)

Answer:

Step-by-step explanation:

x^2 - 8x + 16 = (x - 4)^2

the first one

Answer:

Red balls =  84     Blue balls =  140

Step-by-step explanation:

Ok so there are 225 marbles

And ratio here is Red : Blue = 3 : 5

So Red marbles = 3x whereas Blue marbles = 5x

Therefore,

3x + 5x = 225

8x = 225

x = 28.125 = 28

Red balls = 28*3 = 84     Blue balls = 28*5 = 140

(Pls check whether total no of balls is 224)

Answer:

$16.56

Step-by-step explanation:

Answer:

Carlos should get back $16.56

Answer:

Step-by-step explanation:

y = 6x − 4

y = 5x − 3

A: chose a value for x(input) and get the out put (y) because the equation already in the slope intercept mode:y=mx+b

x                   y=6x-4                  y=5x-3

1                    y=2                        y=2

2                    y=8                        y=7

0                     -4                            -3

slope  :

y=6x-4    slope is 6            y intercept(0,-4)

y=5x-3      slope is 5          y intercept (0,-3)

solution of the pair of equation is  the point of intersection :

6x-4=5x-3

6x-5x=-3+4

x=1   and y=6x-4   ⇒ y=6-4=2

Answer:

its volume

Step-by-step explanation:

Answer:

Volume is the unit that measures space of an object

Answer:

cos A=

[tex] \frac{1}{ \sqrt{2} } [/tex]

Step-by-step explanation:

We know,

cotA=

[tex] \frac{1}{ \tan(a) } [/tex]

Substituting the value of cot A in the given equation, we get

[tex] \tan( a) + \frac{1}{ \tan(a) } = 2[/tex]

[tex] \frac{{ \tan }^{2} a + 1}{ \: \tan(a) } = 2[/tex]

[tex] { \tan }^{2 \: } a \: + 1 = 2 tan \: a[/tex]

[tex] { \tan }^{2} a - 2 \tan \: a + 1 = 0[/tex]

[tex]( \tan \: a - 1) {}^{2 } = 0[/tex]

[tex] \tan \: a - 1 = \sqrt{0} [/tex]

[tex] \tan \: a = 1 [/tex]

[tex] \tan \: a \: = \tan \: 45[/tex]

[tex]a = 45[/tex]

[tex] \cos \: a = \cos \: 45[/tex]

[tex] \cos \: a = \frac{1}{ \sqrt{2} } [/tex]

Answer:

The answer will be B. 20

Step-by-step explanation:

Looks like you did most of it.

The next step would be setting them equal to 105, like the problem suggests.

[tex]5z+3x+7x=105[/tex]

[tex]15x=105[/tex]

[tex]x=7[/tex]

Then we can plug back in to find the numbers.

[tex]5*7=35[/tex]

[tex]3*7=21[/tex]

[tex]7*7=49[/tex]

[tex]35+21+49=105[/tex]

The three numbers are [tex]35, 21, 49[/tex].

Hope this helps.

頑張って!

Answer:

3+X=[3+X]4

Step-by-step explanation:

Let the number be X

we add x by three = 3+x

the sum of 3+x is 3+x

so we multiply the whole sum by 4 which is [3+x]4

so the ans is 3+x=[3+x]4

GOODLUCK ;]

Answer:

3x-20

Step-by-step explanation:

I had this test yesterday and this was the correct answer

The equation  D. y = 20 - 3x Megan use to find the amount of change.

An equation is is a tool that expresses two equality of two given expressions.

According to the given question Megan bought 3 pounds of apples that cost x dollars per pound. She gave the cashier a 20-dollar bill.

Let y denotes the change she received.

If 1 pound of apple cost x dollars then 3 pounds of apples will cos 3×x = 3x dollars.

∴ y = 20 - 3x.

learn more about equations here :

https://brainly.com/question/13795677

#SPJ2

Answer:

b^a= 4^3 =64

Step-by-step explanation:

4^3

that is 4*4*4

hope this helped!

Answer:

a. you cannot multiply both sides by x because you do not know what x is.

Step-by-step explanation:

Given:

[tex]\frac{1}{x} + 3 = \frac{3}{x}[/tex]

Required

Select which of the option that applies

Considering (a):

A is incorrect:

Because: Multiplying both sides by x has nothing to do with whether the value of x is known or not

Considering (b):

B is incorrect:

Substitute 0 for x in the given expression

[tex]\frac{1}{0} + 3 = \frac{3}{0}[/tex]

[tex]Und efi ned[/tex]

Both sides of the equation are undefined

However, you cannot assume x to be 0

Considering (c):

C is correct:

Start by multiplying both sides by x

[tex]x (\frac{1}{x} + 3) = \frac{3}{x} * x[/tex]

[tex]1 + 3x = 3[/tex]

Then, subtract 1 from both sides

[tex]1 - 1 + 3x = 3 - 1[/tex]

[tex]3x = 2[/tex]

Divide through by 3

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

Considering (d):

D is incorrect;

Because, the equation is linear

Answer: Your answer is 7x-13.

Answer:

The midpoint between 2 points is (1,2.5) .

Step-by-step explanation:

We have to apply midpoint formula :

[tex]midpoint = ( \frac{x1 + x2}{2} , \frac{y1 + y2}{2} )[/tex]

[tex]let \: (x1,y1) \: be \: ( - 8,4)[/tex]

[tex]let \: (x2,y2) \: be \:(10 , - 9)[/tex]

[tex]midpoint = ( \frac{ - 8 + 10}{2} , \frac{4 + ( - 9)}{2} )[/tex]

[tex]midpoint = ( \frac{2}{2} , \frac{ - 5}{2} )[/tex]

[tex]midpoint = (1,2.5)[/tex]

Answer:

-19.8

Step-by-step explanation:

Answer:

Step-by-step explanation:

-9 x 2.2 = -19.8

1

2.2

X -9

-----------

- 19. 8

I hope this helps you

Answer:

1:4

Step-by-step explanation:

No of girls :3

No. Of boys:12

Hence 3:12

1:4

Answer:

Length of the square poster = 6.1 in

Step-by-step explanation:

Area of a square poster = 37 in^2

Area of a square = length^2

37 = lenght ^2

Find the square root of both sides

√37 = √ length ^2

Length = 6.0828 in

Approximately

Length of the square poster = 6.1 in

Answer:

Step-by-step explanation:

In this problem (word problem), we are examined on how to express equations from words.

let us initialize some variables

let the length of the first piece (the short piece) be x

and that of the second(the longer piece) be 5x

given that the total length is 96 cm

Also from the problem statement, the total length can be expressed as

5x+x= 96

6x= 96

divide both sides by 6 to solve for x

x= 96/6

x= 16

now the longer side = 5x

        the longer side= 5*6

       the longer side = 30 cm

Answer:

[tex] \huge \frac{4}{9 {x}^{4} {y}^{6} }[/tex]

Step-by-step explanation:

[tex] \huge \bigg( \frac{2 {x}^{ - 2} }{3 {y}^{3} } \bigg)^{2} \\ \\ \huge = \frac{ {2}^{2} ( {x}^{ - 2})^{2} }{ {3}^{2} ( {y}^{3} ) ^{2} } \\ \\ \huge = \frac{4 {x}^{ - 4} }{9 {y}^{6} } \\ \\ \huge = \frac{4}{9 {x}^{4} {y}^{6} } \\ [/tex]