An electrician charges $15 plus $11 per hour. Another electrician charges $10 plus $15 per hour. Which of the systems of equations below correctly represents this situation if x represents the number of hours and y represents the total cost?

Answers

Answer 1

y=11x+15

y=15x+10

This is the system of equariob


Related Questions

if payton has an 73% for a grade and got and 78% on a test does it lower or rises her grade?​

Answers

Pretty sure it rises her grade.

Several paint mixtures are made by mixing blue paint and white paint. Paint Colors Blue Paint White Paint Mixture A 5 cups 12 cups Mixture B 6 cups 6 cups Mixture C 4 cups 12 cups Mixture D 5 cups 6 cups Which mixture has the lowest ratio of blue paint to white paint? mixture A mixture B mixture C mixture D

Answers

Answer:

The mixture C is the correct option

Step-by-step explanation:

According to the given scenario, the calculation is as follows:

For Mixture A

Blue Paint - 5 cups

White Paint - 12 cups

The ratio between them is 5:12

For Mixture B

Blue Paint - 6 cups

White Paint - 6 cups

 The ratio between them is 6:6 = 12:12

It came by multiply the numerator and denominator by 12

For Mixture C

Blue Paint - 4 cups

White Paint - 12 cups

 The ratio between them is 4:12

For Mixture D

Blue Paint - 5 cups

White Paint - 6 cups

 The ratio between them is 5:6 = 10:12

It came by multiply the numerator and denominator by 12

As it can be seen that in all four mixtures the denominator is the same so for calculating the lowest ratio we have to see the small value in the numerator

As it can be seen that there is a small value of 4

hence, the mixture C is the correct option

Answer:

C mixture

Step-by-step explanation:

Find the missing side. Round to the nearest tenth.

A. 13.3
B. 11.3
C. 16.8
D. 27.1

Answers

Answer:

A. 13.3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Trigonometry

tan∅ = opposite over adjacent

Step-by-step explanation:

Step 1: Set up equation

tan55° = 19/x

Step 2: Solve for x

Multiply x on both sides:                    xtan55° = 19Divide tan55° on both sides:             x = 19/tan55°Evaluate:                                             x = 13.3039Round:                                                x ≈ 13.3

And we have our final answer!

Answer:

13.3

Step-by-step explanation:

This is trigonometry

So for this one, we use a basic ratio. We need to use 19 and 55 degrees for the answer. We are given that the leg adjacent to the 55-degree angle is x and the opposite leg to the 55-degree angle is 19.

So we use tangent(opposite leg/adjacent leg) for this (TOA of SOH CAH TOA)

tan(55 degrees)=19/x

  SO then solve for x and then evaluate using a scientific calculator and you should get 13.30394322

      13.3

How to find missing angles

Answers

Step 1: Add together the known angles.
Step 2: Subtract the sum from 180°.

The ratio of red balloons to blue balloons at a party is 4 to 9. If there are 20 red balloons, how many blue balloons are there?

Answers

Answer:

Step-by-step explanation:

4/9 to 20/x

cross multiply and divide to get your answer

4     20

9     x

4x=180

x=45

The number of blue balloons will be equal to 45.

What is a fraction?

Any number of equal parts is represented by a fraction, which also represents a portion of a whole.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that the ratio of red balloons to blue balloons at a party is 4 to 9. There are 20 red balloons. The number of blue balloons will be calculated as below:-

4/9 to 20/x

Cross multiply and divide to get your answer.

4 / 9 = 20 / x

4x=180

x=45

Therefore, the number of blue balloons will be equal to 45.

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share 126 in the ratio 2:5

Answers

Answer:

first share 2x=36

Second share=5x=90

Step-by-step explanation:

Ratio 2:5

Share=126

Let first share=2x

Second share=5x

So 2x+5x=126

7x=126

X=126/7

X=18

So first share 2x=36

Second share=5x=90

Find 3028 ÷ 150. Write the answer as a mixed number in simplest form.

Answers

Answer: 20.1866666667 as a mixed number is  20  14/75

Step-by-step explanation:

Which is the best estimate for the height of the candle after 1 hour?
A. 4 cm
B. 5 cm
C. 8 cm
D. 9 cm​

Answers

Answer:

about 5.5

Step-by-step explanation:

so 5cm. Just trust me i dont know how to explain but i know its right.

Answer:

C.8cm

Step-by-step explanation:

i took the test its correct

prettyy pretty help :):) ?

Answers

Answer: B

Step-by-step explanation:

write cp and sp i bought a suit rs 5750.00 and sold it at rs 5890.00?​

Answers

CP = Rs 5750.00

SP = Rs. 5890.00

[tex]\rm \blue{\: mark \: brainleist \: }[/tex]

g(x) = 2r- 9x2 + 7x + 6
factor

Answers

Answer:

(2x+1)(x−3)(x−2)

Step-by-step explanation:

What is the value of x in the equation 0.02x + 0.7 = 0.8?

Answers

Answer:

5

Step-by-step explanation:

0.02x=0.8-0.7

0.02x=0.1

x=5

Answer:

x = 5

Explanation :

0.02(5) + 0.7 = 0.8

0.1 + 0.7 = 0.8

which shows the price of a $35 video game after a mark up 27%

Answers

Answer:

Step-by-step explanation:

35*27%=9.45 mark up

35+9.45= 44.45 total cost

Answer:

The answer is $44.45

Step-by-step explanation:

You change the percent into a decimal so it would be .27 then multiply the .27 to the $35 and you will get $9.45. Then you add the $9.45 to the $35 and you will get the answer.

john has 350 which is 50 more than sally has, how much does sally have?

Answers

Answer:

sally has 400.

Step-by-step explanation:

because if u add 350 and 50 it equals 400

Answer:

300

Step-by-step explanation:

john= 350

sally=350-50

=300

PLEASE HELP! I WILL MARK BRAINLIEST!!!

What are the essential elements of an independent clause?

a subject and a complete thought
a subject, a verb, and a complete thought
a verb and a complete thought
a complete thought

Answers

Step-by-step explanation:

A subject, a verb, and a complete thought

Answer: A subject, a verb, and a complete thought.

Step-by-step explanation:

                    Independent clauses have three components:

They have a subject - they tell the reader what the sentence is about.They have an action or predicate - they tell the reader what the subject is doing.They express a complete thought - something happened or was said.

Which linear inequality is represented by the graph?

Answers

Answer:

your photo is not clear

Answer:

The answer is A

To find out the answer, substitute 0 into x and find the value of y. If the value of y is same wlike in the graph, then the equation is correct.

Thank you and please rate me as brainliest as it will help me to level up

2x-5(x-4)=-7+3x+15 pls help
Asap

Answers

Answer:

x=2

Step-by-step explanation:

2x-5x+20=-7+3x+15

-3x+20=8+3x

20-8=3x+3x

12=6x

x=2

Is (6, -6) a solution to the system
- 4x – 2y = -12
4x + 8y = -24
Yes
No

Answers

Yes (6, -6) is a solution to the system.

Answer:

[tex] - 4x - 2y = - 12 \\ 4x + 8y = - 24 \\ \\ 6y = - 36 \\ y = \frac{ - 36}{6} = - 6 \\ \\ - 4x - 2( - 6) = - 12 \\ - 4x + 12 = - 12 \\ - 4x = - 12 - 12 \\ - 4x = - 24 \\ x = \frac{ - 24}{ - 4} = 6 [/tex]

yes it's a right answer

go follow my insta (emily.handley)
im so close to 21k!! if you want you can :) i'm following back some people <3

Answers

ummmm if i follow will u follow me back

Select all the values that are equivalent to the given expression. Express your answer in scientific notation.
(9.6 X 103) X (6.7 X 10)
6.432 X 105
6.432 X 106
64.32 x 105
64.32 X 106
(9.6 X 6.7) X (103 X 10)

Answers

the equivalent expressions are:

(9.6*6.7)*(10³*10) 64.32*10⁴ 6.432*10⁵

And the expression in scientific notation is the last one in the bullet points.

Which are the values equivalent to the given expression?

Here we start with the expression:

(9.6*10³)*(6.7*10)

Where both numbers are in scientific notation, notice that we can write that product as:

(9.6*10³)*(6.7*10) = (9.6*6.7)*(10³*10) = 64.32*10⁴

Now, remember that in scientific notation, we only can have a single digit in the left of the decimal point, so we can rewrite:

64.32*10⁴ = 6.432*10⁵

So the equivalent expressions are:

(9.6*6.7)*(10³*10) 64.32*10⁴ 6.432*10⁵

And the expression in scientific notation is the last one in the bullet points.

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14 Solve for the value of x.
3
(2x - 10)
(4x + 16)

Answers

Value of x is 29.........

Katie runs 5 laps arround the park in 8 minutes.how many laps her minute is that

Answers

Answer:

1.6 mins

Step-by-step explanation:

8 divided by 5 = 1.6

Answer:

8÷5=1.6 answer is 1.6

Step-by-step explanation:

running each lap at 1.6 minutes

Simplify the expression: (n-8)-(-2n+2)

Answers

Step-by-step explanation:

3 n - 10

Answer:

3n-10

Step-by-step explanation:

Distribute

(n-8)-(2n+2)

(n-8)+2n-2

Eliminate Perinthesis

n-8+2n-2

Subtract

n-10+2n

Combine like terms

3n-10

A business has a 200 ft wall and places 6 ft letters on the center of an exterior wall to spell SALE. If there is 1ft between each letter, where do they start the letter S?

Answers

Answer:

200 - 6 = 194

194 / 2   = 97

So the wall pretty much will be

]

]

]

]     97 fT

]

]

S

A

L

E

]

]

]     97 fT

]

]

Step-by-step explanation:

Write a linear function in the form y = mx + b for this function
representation.

Answers

Answer:

y = -3, 3

Step-by-step explanation:

The function line goes on both -3 and 3. The answer is y = -3, 3

Answer:

c= -2

m= 2/3

y=2/3x-2

3y=2x-6

Please help me with this question...please

Answers

Answer:phone A

Step-by-step explanation:

phone A is the cheapest

Help plz with this math problem. I’m so confused

Answers

Slope-intercept form is written as y = mx + b, where m is the slope and b is the y-intercept.

From this graph we should determine two points so we can work out the slope. Let's take points (3, -4) and (6, -2).

                                       

The equation to find the slope is:

m = [tex]\frac{y2 - y1}{x2 - x1}[/tex]

Let's substitute in our values:

m = [tex]\frac{-2 - -4}{6 - 3}[/tex]

Remember that two negatives make a positive, let's solve for m:

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

Okay, now we have the value of m. Now we need the value of b. We can determine this by looking at the graph and looking where the line passes through the y-axis. In this graph, we can see the line pass through the y-axis at point (0, -6).

Therefore we can determine that b = -6.

Let's substitute our value for m and our value for b into the slope-intercept formula:

y = mx + b

y = [tex]\frac{2}{3}[/tex]x + -6

There's your final answer! I hope this helps, have a great night. :)

A math quiz has 10 questions and is scored out of 100. Each question is worth the same. The function S(q) represents the quiz score, S, in terms of the number of correctly answered questions, q.
Determine whether each statement below is true or false. Select True or False for each statement​

Answers

Statements are;

1) S(q) represents a quantity that changes at a constant rate per unit interval.

2) S(q) represents a quantity that changes at a constant percent rate per unit interval

3) S(q) represents a linear function

4) S(q) represents an exponential function.

Answer:

Statements 1 & 3 are true while statements 2 & 4 are false

Step-by-step explanation:

We are told that S(q) is a function that represents the quiz score, S, in terms of the number of correctly answered questions, q.

Statement 1 is true because the quiz score(S(q)) changes at a constant rate per unit questions answered since the math quiz has 10 questions and is scored out of 100

Statement 2 is false because S(q) is not expressed as a percentage rate.

Statement 3 is correct because S(q) function is a straight linear functional relationship where it directly depends on the number of correctly answered questions(q)

Statement 4 is false because the relationship is not expressed in exponential form but as a direct linear relationship.

The function S(q) is an illustration of a linear function.

The true statements are:

a) S(q) represents a quantity that changes at a constant rate per unit interval. c) S(q) represents a linear function

The false statements are:

b) S(q) represents a quantity that changes at a constant percent rate per unit interval d) S(q) represents an exponential function.

From the question, we understand that:

S(q) represents the quiz score in terms of the number of correct answers

This means that:

As the correct answers increases or decreases, the value of s(q) changes at a constant interval

Functions that have such behavior are linear functions because they change at a constant rate

Hence, (a) and (c) are true, while (b) and (d) are false.

Read more about linear functions at:

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What's the equation of the line that passes through the points (7,4) and (-7,1)

Answers

Answer:

y=-5/14x-3/2

Step-by-step explanation: Thats the equation

I really hope this answer make sense for you

Solve for the angle denoted by the "?". Round to the nearest tenth. *
(10 Points)
0.7 degrees
35.4 degrees
54.6 degrees
45.3 degrees
WILL MAKE BRANLIEST

Answers

Answer:

Step-by-step explanation:

tanx=27/38

take the inverse...

tan^-1(27/38)

≈35.4 degrees

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