Mathematics High School

The amount Troy charges to mow a lawn is proportional to the time it takes him to mow the lawn. Troy charges $30 to mow a lawn that took him 1.5 hours to mow.

Which equation models the amount in dollars, d, Troy charges when it takes him h hours to mow a lawn?

A) d = 20h
B) h = 20d
C) d = 45h
D) h = 45d

Answers

Answer 1

First, let's find the amount of money Troy charges per hour.

$30 / 1.5hrs = $20 / hr

d = $20h

A is the correct answer choice.

Related Questions

What is 7(x+4)= -21?

Answers

Answer:

x = -7

Step-by-step explanation:

7x + 28 = -21

7x = -21 -28

7x = -49 /:7

x = -7

someone please help me with this! please write the steps as well! thank you so much!

Answers

Answer:

where is the question

Step-by-step explanation:

Which of these equations represents a line that has an undefined slope and is
perpendicular to the line represented by y = 5?
A x = 5
B y = 0
C y = −5
D No such line exists.

Answers

It Will Be C because a positive always turns into An negative so the answer will be Y=-5

Step-by-step explanation:

D. no such line exits

you have to know the gradient of the line given and there is no gradient given

What is the conclusion in this conditional statement?

If a city is in the United States, then it is in North America.

Answers

Answer:

Yes

Step-by-step explanation:

Answer:

True because if the United States is in North America which it is, a city of the United States is most likely to be in North America.

Step-by-step explanation:

What is the value of f(x) = 3x -12 for anx = 9

Answers

Answer:

Step-by-step explanation:

f(x) = 3x -12 for x = 9

f(9) = 3(9) -12

27-12

This is it if you can’t solve it it’s fine!

Answers

Answer:

is 115

Step-by-step explanation:

i think since 7 checks equal 50, 14 must equal 100. and the other kid already had 15 dollars i think so that makes sense......... i think

A music app charges $2 to download the app plus $1.29 per song download, Identify the rate of change.

Answers

Answer: 1.29

Step-by-step explanation: y=1.29x+2

1.29 is the coefficient of X, slope, and the rate of change.

what would be the graph for y=2x+5

Answers

See attachment for math work and answer.

Answer:

See attached picture.

Step-by-step explanation:

We know that in slope-intercept form [tex]y=mx+b[/tex], [tex]m[/tex] represents the slope of the line and [tex]b[/tex] represents the y-intercept. To start we would put a point on (0,5) to represent the y-intercept. Next, we know our slope is 2 so we would go up two and right one to get to our next point (2,6). We can then make a straight line between these to get our graph

Choose two statements that are true fo of this expression. 5x^3- 6x^2 - 25/y + 18

Answers

Answer:

5x^3- 6x^2 - 25/y + 18 / y

Step-by-step explanation:

It would be that expression over y.

Sorry if its wrong I'm still learning too:)

Answer:

The answers are

*There are four terms.

*The term -25/y is a ratio.

Step-by-step explanation:

PLEASE HELPPP please

Answers

Answer: -30x⁵y⁷

Step-by-step explanation:

When multiplying exponents, you add them.

Distribute the -5x³ and y² to the terms inside of the parentheses to simplify:

-30x⁵y⁷

Hope this helps!

when multiplying variables that are the same but have different exponents, just add the exponents together (ex: x^2*x^5 = x^7)

now that we know that, just multiply everything by it’s like term - coefficient by coefficient, variable by variable

so: (-5*6)(x^3*x^2)(y^5*y^2) = (-30)(x^5)(y^7)

now just combine them: -30x^5y^7

how do i show (6y-2) to the power of 2 simplified 36y^2 -24y+4

Answers

Answer:

420 69x1.38 (122) 12344

Write an equation in slope-intercept form of the line that passes through the given point and is parallel to the graph of the given equation.
(-3,-3);y=-3x-2 y=−3x+2
Write an equation for the line in slope-intercept form.

Answers

Answer:

y = –3x – 6

Step-by-step explanation:

We'll begin by obtaining the slope of the equation y = –3x – 2.

This can be obtained by comparing

y = –3x – 2 with y = mx + c

Thus, the slope (m) of the equation

y = –3x – 2 is –3.

Next, we shall determine the slope of the equation parallel to line with equation y = –3x – 2.

This is illustrated below:

For parallel lines, the slope are related as follow:

m1 = m2

m1 = –3

m2 = m1 = –3.

Finally, we shall determine the equation as follow:

Coordinate = (–3, –3)

x1 coordinate = –3

y1 coordinate = –3

Slope (m) = –3

y –y1 = m(x – x1)

y – (–3) = –3 (x – (–3))

y + 3 = –3 (x + 3)

y + 3 = –3x – 3

Rearrange

y = –3x – 3 – 3

y = –3x – 6

Thus, the equation parallel to the line is y = –3x – 6

WRITE A COMPOUND INEQUALITY FOR EACH GRAPH PLEASEEE HELP DUE IN !) MINUTES!!!!!

Answers

Answer:18-1 closed right 5

19-3 open right5

20 0 open left 1 3 closed right 1

21 -4 open left 2 -3 open right 3

22 3 close left 2 6 open right 1

23-3 open left 1 0 open right 2

Step-by-step explanation:

plz i need help -8 = p -5

Answers

the answer is p = -3

rtbnjtfbu7yhjujkuf. ,i

Convert 8 miles into kilometers. Round your answer to the nearest tenth.

Answers

the answer to your question is 12.9

8 miles is equal to 12.9 kilometers .

Given,

Convert 8 miles into kilometers .

Now,

From the metric system of unit conversion table we see that;

1 kilometer = 1000 meters (m)

1 meter = 100 centimeters (cm)

1 centimeter = 10 millimeters (mm)

Here we need the conversion factor that includes miles,

So according to the table 1 mile is equal to 1.609 kilometers .

Then,

8 miles will be equal to:
8*1.609

= 12.9 kilometers .

Hence the value of 8 miles in km is equal to 12.9 kilometers .

Know more about conversion,

https://brainly.com/question/30879700

#SPJ6

Please help
The perimeter of a rectangular pool is 48 feet. Its length is 4 feet more than its width.

Let the width of the pool be represented by x.

Which equation below can be used to describe the situation?

Answers

Step-by-step explanation:

perimeter = 2* ( length + width)

Length = 4 + Width = 4+x

Equation is,

2* (4+x+x) = 48

2* (4+2x) = 48

4+2x = 48/2 = 24

4+2x=24

2x = 24-4 = 20

2x = 20

x = 10

What equation could represent the situation shown in this model? What is the value of `x`?
Select one:

9x+4=24+x; x=2.5

9x=24+x; x=3

4x=24; x=6

9x=28+x; x=3.5
Assessment question image

Answers

Answer:

what>???????????????????/

Step-by-step explanation:

Answer:

9x+4=24+x; x=2.5

Step-by-step explanation:

Please help me the picture is above, I’ll mark as brainliest.

Answers

Answer:

function is a straight line, with a y-int of 1, passes VLT and HLT so it is 1:1

Step-by-step explanation:

f(x)= 2x+4

f(-2)= 2(-2)+4 = -4+4 = 0

f(-1)= 2(-1)+4 = -2+4 = 2

f(0)= 2(0)+4 = 0+4 = 4

f(1)= 2(1)+4 = 2+4 = 6

f(2)= 2(2)+4 = 4+4 = 8

idrk the features but i'll guess

What number would go into the box?

Answers

8. When dealing with exponents like x^2, multiplication is like addition and division is like subtraction (x^2*x^3=x^5, x^3/x^2=x). So, for this one, we can get rid of the X’s and rewrite as this: p+6-2=12. If we solve this, we see that the answer is 8.

In a quiz consist of 10 questions,+2 marks are given for a correct answer, -1 marks for an incorrect answer and 0 marks for not attempting a question. Radhika got 8 correct answers and 2 wrong answers. What is her total score?

Answers

Answer: 14

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

Work Shown:

c = number of correct answers

w = number of wrong answers

n = number of questions not attempted

2c = points you get from all the correct answers

-1w = points you get from all the wrong answers

0n = points you get from all the questions attempted

2c-1w+0n = 2c-w = total number of points

In this case, she got 8 correct answers and 2 wrong answers. So c = 8 and w = 2 which leads to

2c-w = 2*8-2 = 16-2 = 14

Her total score is 14.

Write the equation of a line that passes through the point (3, 4) and has a slope of -1

Answers

Answer:

[tex]Y = -1x + 4[/tex]

Step-by-step explanation:

Hope this helps

What else would need to be congruent to show that ABC is congruent to DEF by ASA?

Answers

Answer:

Step-by-step explanation:

Angle Side Angle

A and \angle B∠B are supplementary angles. If m\angle A=(5x-19)^{\circ}∠A=(5x−19)
∘
and m\angle B=(2x+10)^{\circ}∠B=(2x+10)
∘
, then find the measure of \angle B∠B.

Answers

Answer: 52

Step-by-step explanation:

4x+8 = 5x-3 by the Vertical Angles Theorem that states the vertical angles are congruent.

Subtract 4x from both sides and get:

8=1x -3

Add 3 to both sides:

11= 1x

if x =11, plug that in to angle A.

4x+ 8 becomes 4(11)+8 =

44+ 8=

Vaness’s team won their softball game and scored sixty-three points total. If Vanessa scored fifteen of the points and everyone else scored six points each, how many players were on her team?

Answers

8. 63-15=48 48 divided by 6=6

The value of -4 - x is positive. What must be true about x ?
i need help with this asap

Answers

Answer:

x must be less than -4

Step-by-step explanation:

We need to set the equation equal to 0

-4 - x > 0

+ -4 + -4

x < - 4

someone help please
the options are
1. y = 2x + 4
2. y = 1/2 x + 4
3. y = -1/2x + 4
4. y = -2x + 4

Answers

Answer:

2. y = 1/2x + 4

Step-by-step explanation:

This is the only equation that moves in a positive slope the way the graph shows it, hope this helps.

Vanessa collected Barbie dolls. She began with 2 dolls and added the same amount of dolls to her collection each year. In the 24th year, Vanessa had 98 dolls. Which function, d(n), can be used to determine the number of dolls Vanessa had in any year? Show complete working format please

Answers

Answer:106

Step-by-step explanation:

106

PLZ HELp ME HELP ME PLZZZ

Answers

it’s about 9.6 ft too short since 3.3 times 12= 39.6 and 30 - 39.6 = 9.6

3x^3-75x

please help
.....

Answers

Answer :pls delete my answer.

Answer: 3x(x-5) (x+5)

Step-by-step explanation Step 1: Factor out comon coeffecient factor. 3x3 (exponent) - 75x.- 3(x3 (exponent)-25x)

Step 2: Find One factor. 3x(x2(exponent)-25)

Step 3 an final step: Find One factor again. Factor by grouping, Factor by grouping again, Factor by grouping a third time. Edit: I hope this was helpful and I wish the best of luck to the person that asked this question and people that want to know this question.

There are 12 months in a year and 52 weeks in a year. What is the ratio of months to weeks in one year? A 6/27 B 3/13 C. 13/3 D. 27/6

Answers

Answer:

Step-by-step explanation:

12/52=6/26=3/13

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