A plumber charges $10 for transportation and $55 per hour for repairs. Write an expression that can be used to find the cost in dollars for a repair that takes h hours. Group of answer choices 65h 10h + 55 10 + 55h 45h

Answer: X= -15

Step-by-step explanation:  

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer: 4r = 4

Step-by-step explanation:

Ruth bought 4 rulers and each ruler is to be represented by r. She therefore bought:

= 4r

She bought these for a total of $4.00 so the equation then becomes:

4r = 4.00

Equation representing situation is: 4r = 4

Answer:

Thanks mate.

Step-by-step explanation:

Answer:

1/10

Step-by-step explanation:

first you find the common denominator.

multiply 1/2 by 5 and 2/5 by 2

now you have 5/10-4/10

now its easy and the answer is 1/10

Step-by-step explanation:

answer is 5/10-4/10= 1/10 sorry if im wrong

Answer:

C

Step-by-step explanation:

Remark

A midsegment is 1/2 the size of the side that it is parallel to.

Equation

6x - 6 = 2*(x + 3)                    Remove the brackets

6x - 6 = 2x + 6                       Subtract 2x from both sides

6x - 2x - 6 = 6                        Combine

4x - 6 = 6                               Add 6 to both sides

4x = 6 + 6                              Combine

4x = 12                                   Divide by 4

x = 12 / 4

x = 3

==================

Find DF

But that's not the answer.

DF = x + 2

DF = 3 + 2

DF = 5

Answer:2,490

Step-by-step explanation:

(2,500)-(0.4%*2,500)=

1-0.4%)x2,500

100%-0.4)x2,500

99.6%x2,500

99.6/100x2,500

99.6x2,500/100

249,000/100

Answer:

[tex]y = \frac{1}{2} x + \frac{1}{2} [/tex]

Step-by-step explanation:

equation of line formula:

[tex]y = mx + c[/tex]

m = slope

c = y-intercept

1) find m

slope formula:

[tex]m = \frac{ y_{2} - y_{1} }{ x_{2} - x_{1}} [/tex]

take 2 coordinates from the given graph and substitute the values into the slope formula

i) (-1,0)

[tex]x _{1} = - 1[/tex]

[tex]y_{1} = 0[/tex]

ii) (3,2)

[tex]x_{2} = 3[/tex]

[tex]y_{2} = 2[/tex]

substitute the values into the slope formula

[tex]m = \frac{2 - 0}{3 - ( - 1)} [/tex]

[tex]m = \frac{2}{4} [/tex]

[tex]m = \frac{1}{2} [/tex]

2) find the half equation of the line by substituting the value of m into the equation of line formula

[tex]y = \frac{1}{2} x + c[/tex]

3) find c by substituting either coordinate into the half equation

(3,2)

x = 3

y = 2

[tex]2 = \frac{1}{2} (3) + c[/tex]

[tex]2 = \frac{3}{2} + c[/tex]

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

[tex] \frac{1}{2} = c [/tex]

[tex]c = \frac{1}{2} [/tex]

4) find equation of line by substituting the value of c into the half equation

[tex]y = \frac{1}{2} x + \frac{1}{2} [/tex]

Answer:

4x7= 28 6x6=36 28-36=-8 -8+3=5

Step-by-step explanation:

Answer:

[tex]\frac{1}{2} x +x = 2 (x-4)[/tex]

Step-by-step explanation:

Suppose number is x

Following equation can be written from question statement

[tex]\frac{1}{2} x +x = 2 (x-4)[/tex]

Simplifying it further

[tex]\frac{3}{2} x = 2x-8[/tex]

[tex]\frac{3}{2} x -2x=-8[/tex]

[tex]\frac{3x-4x}{2}= -8[/tex]

[tex]-x= -16\\x=16[/tex]

Answer:

2by5 is the correct answer

Step-by-step explanation:

4×1/2=2

10×1/2=5

Answer:

Hi how are you doing today Jasmine

Answer:

Hi! The correct answer is x = 4!

Step-by-step explanation:

~isolate the variable by dividing each side by factors that don't contain the variable~

Answer:

2

Step-by-step explanation:

Answer:

(8, - 5 )

Step-by-step explanation:

Given the 2 equations

3x + 4y = 4 → (1)

- x - 3y = 7 → (2)

Multiplying (2) by 3 and adding to (1) will eliminate the x- term.

- 3x - 9y = 21 → (3)

Add (1) and (3) term by term to eliminate x, that is

0 - 5y = 25

- 5y = 25 ( divide both sides by - 5 )

y = - 5

Substitute y = - 5 into either of the 2 equations and solve for x

Substituting into (1)

3x + 4(- 5) = 4

3x - 20 = 4 ( add 20 to both sides )

3x = 24 ( divide both sides by 3 )

x = 8

solution is (8, - 5 )

sorry mine was a mistake

Answer:

Step-by-step explanation:

Answer: See explanation

Step-by-step explanation:

You didn't give the options but let me help out.

Number of students that want a beef meal = 12

Number of students that want a chicken meal = 8

Number of students that want a pasta meal = 5

Total number of students = 12 + 8 + 5 = 25

The prediction of the meals wanted by the 200 students will be:

Beef meal = 12/25 × 200 = 96

Chicken meal = 8/25 × 200 = 64

Pasta meal = 5/25 × 200 = 40

The answer is: 4%  

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 5750 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 100% equals 5750, so we can write it down as 100%=5750.

4. We know, that x% equals 230 of the output value, so we can write it down as x%=230.

5. Now we have two simple equations:

1) 100%=5750

2) x%=230

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

100%/x%=5750/230

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 230 is what percent of 5750

100%/x%=5750/230

(100/x)*x=(5750/230)*x       - we multiply both sides of the equation by x

100=25*x       - we divide both sides of the equation by (25) to get x

100/25=x

4=x

x=4

now we have:

230 is 4% of 5750

Answer:

y=4x

Step-by-step explanation:

slope`:-8-8/-2-2

-16/-4=4

y=4x+c

8=4(2)+c

8=8+C

8-8=c

0=c

Answer:

This might help you.

Step-by-step explanation:

Answer: 9

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

x = 10

Step-by-step explanation:

5x - 20 = 2x - 10

-2x         -2x

3x - 20 = -10

    +20   +20

3x = 30

x = 10

Answer:

it isnt linear

Step-by-step explanation:

Answer:

S = (4x-1)²

Step-by-step explanation:

Answer:

Your answer(s) are A because 0,0 goes through the point also D cause it goes through and E

Step-by-step explanation:

A,D,E hope its right:()

Final Answer: [tex]3x - 9[/tex]

Steps/Reasons/Explanation:

Question: Simplify [tex]-5 - x + 4x - 4[/tex].

Step 1: Collect like terms.

[tex](-5 - 4) + (-x + 4x)[/tex]

Step 2: Simplify.

[tex]-9 + 3x[/tex]

Step 3: Regroup terms.

[tex]3x - 9[/tex]

~I hope I helped you :)~

Answer: 3x-9

Step-by-step explanation:

Subtract the numbers

-5 - x + 4x -4x

-9 - x + 4x

Combine like terms

_______________

-9-x+4x

-9+3x

Rearrange terms

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

-9+3x

3x-9

Answer:

Option A

Step-by-step explanation:

System of the inequalities is,

y ≥ 2x

y < x + 4

By satisfying these inequalities with the points given in the options we can get the answer.

Option (A). (2, 5)

y ≥ 2x

5 ≥ 2(2)

5 ≥ 4

True.

y < x + 4

5 < 2 + 4

5 < 6

True

Therefore, Option (1) is the answer.

Option (B) (1, 6)

y ≥ 2x

6 ≥ 2(1)

6 ≥ 2  

True.

y < x + 4

6 < 1 + 4

6 < 5

False.

Therefore, it's not the solution.

Option (C) (2, 3)

y ≥ 2x

3 ≥ 2(2)

3 ≥ 4

False.

y < x + 4

4 < 2 + 4

4 < 6

True.

Therefore, It's not the solution.

Option (D) (1, 5)

y ≥ 2x

5 ≥ 2(1)

5 ≥ 4

True.

y < x + 4

5 < 1 + 4

5 < 5

False.

Therefore, It's not the solution.