Mathematics High School

Please help!!

15 Points !!

Answers

Answer 1

Answer:

equation: 3h+2.50=13

solution: h=$3.50

each hamburger was $3.50

Step-by-step explanation:

hope this helps

Related Questions

-2 = K+7/3 find for k

Answers

Answer:

k = -13/3

Step-by-step explanation:

Step 1: Flip the equation.

k + 7/3 = -2

Step 2: Subtract 7/3 from both sides.

k+ 7/3-7/3 = -2 - 7/3

k= -13/3

Hope this helps!

Velvet fabric costs $11.49 a yard. Yvette buys 9.3 yards. Yvette's estimated cost of the velvet is
$20.
$99.
$104.
$120

Answers

Answer:

$99

Step-by-step explanation:

11.49 is estimated to 11

9.3 is estimated to 9

1 yard cost $11 what of 9

11×9=99

Answer:

99 is your anwser⇔

Step-by-step explanation:

Describe how to solve 2x + 36-4x -10 ) = 10 to a middle schooler. Show all the steps and tell
us how you can check if it is correct.

Answers

First, you would combine to 2x and 4x (which makes -2x), then combine 36 and -10 (which makes 26). You are left with the equation -2x+26=10. After finding the equation, you’d subtract 26 from both sides, which would make the equation -2x=-16. Divide both sides by -2, and after you do that you should get your answer x=8.

Answer:

First you would have to combine the numbers that are the same, so combine all the X's and the other numbers, with out a variable (without an X). The numbers with X are 2x and -4x, so you add them, you should have 2x (2+ (-4)= 2) your equation should look like this : 2x + 36 - 10= 10

Next you need to combine the other numbers, 36 and -10, add them, and you should get 26. Your problem should look like this 2x+26=10

Next you will need to subtract 26 from each side, what you do to one side of the equal sign you must do to the other. Your problem should look like this : 2x=-16

To find X you have to get X alone, so you have to divide how many x's there are, 2, so divide both sides by 2 (rembering that what you do to one side you must do to the other). So you should have x= -8

Step-by-step explanation:

What is the solution of the equation 18 = 2x?

Answers

Answer:

x = 9

Step-by-step explanation:

Answer:

The answer is x=9

Step-by-step explanation:

18=2x, you divide both sides by 2 and you get 18/2 which equales 9.

Evaluate f(t)=-2t2+ 1 for f(-3).

Answers

Answer:

Step-by-step explanation:

First, plug-in f(-3) into t in the function:

[tex]f(-3)=-2(-3) +1[/tex]

Second, multiply -2 and -3 to get 6:

[tex]f(-3)=-2(-3)+1[/tex]⇒[tex]f(-3)=6+1[/tex]

Third, add 6 and 1 to get your answer:

[tex]f(-3)= 6+1[/tex]⇒[tex]f(-3)=7[/tex]

How do the measures of the angles of compare with those of when coincides with the other three triangles? What can you say about the preservation of the angle measurements of a shape during a rotation?

Answers

Answer:

The measure of each angle of angle ABC is equal to the corresponding angle of angle A' B' C' when angle A' B' C' coincides with the other three triangles. The measures of the angles of the triangle are preserved as the figure rotates.

Step-by-step explanation:

Answer:

Step-by-step explanation:

I am confused. what is 5r– 7 = 2r+ 14

Answers

Answer:

r=7

Step-by-step explanation:

5r-7=2r+14

add sevento both sides

5r=2r+21

Subtract 2r from both sides.

3r=21

divide both sides by 3

r=7

Solve the compound inequality below:
0 < 2x – 10 < 20

Answers

Answer:5<x<15

Step-by-step explanation:

Answer:

Step-by-step explanation:

0<2x-10<20

If a<u<b then a<u and u<b

0<2x-10 and 2x-10<20

0<2x-10= x>5 2x-10<20 = x<15

Combine the intervals

x>5 and x<15

Solution: 5<x<15

Interval Notation: (5,15)

−45(9x−20)−3x=45x−6 Enter the value of x that makes this equation true.

Answers

Answer x=2

Step-by-step explanation:

Answer: x = 2

Step-by-step explanation: - 4/5*9x +4/5*20 - 3x= 4/5x- 6

-36/5*x+16-3x-4/5*x= -6

-36/5*x-15x/5-4/5*x=-6-16

-55/5*x=-22

-11x= -22

x= -22:(-11)

Hope this helps!!

I was slightly confused so please tell me if it's wrong.

6x4-12\6 please help me

Answers

by using BODMAS,
we divide 12/6 first to get 2.
then we solve the multiplication of 6x4 to get 24.
finally, we subtract 2 from 24 to get 22.

to my best calculations the answer is 22

When do u evaluate exponents in the order of operations??
Pls help I got 9 minutes to do this

Answers

Answer:

2nd

Step-by-step explanation:

Perenthasis

Exponets

Multiply

Divide

Add

Subtract

what is 46.5 divided by .15

Answers

Answer:

310

Step-by-step explanation:

i used the calculator, Use a calculator to help

Simplify 3-8n+5n+8 explain

Answers

Answer: 3-3n+8e

3-8n+5n+8e
Add -8n+5n
That equals to-3n
You get 3-3n+8e since there is no way more to simplify

What is the answer to 8)555 with the remainder and this is division.

Answers

Answer:

69 <-- quotient

---

Step-by-step explanation:

8)555

3 <-- remainder

Which algebraic expression is equivalent to the expression below?
(6x + 10) + (8x - 2)

А.14x + 8
B. 24x-2
C. 14x + 12
D.16x-6

Answers

Answer:

Step-by-step explanation:

Add the Xs and subtract 2 from 10

C because I just took the test in edgenuity

7 to the 14 th power divided by 7 to the 2nd power

Answers

Answer:

13841287201

Step-by-step explanation:

I typed it into a calculator.

Answer:

7^12 = 13841287201

Explanation:

7^14/7^2 here we use the identity-(a^m/a^n=a^m-n)therefore the answer is 7^14-2 =7^127^12 = 13841287201.

Hope it helps.....

PLEASE HELP Mary organized her work below for solving the equation 3m-6=24.
Examine her work and answer the following questions.
In what step (or steps) did Mary make a mistake?
What did she do wrong and how should she fix it?
What should her answer be if she solved the problem correctly?
Be sure to answer in complete sentences.

Answers

Answer:

Mary messed up on the second step. She should have also added 6 to the 24. If she had solved the equation the correct way her answer would have been m=10

Step-by-step explanation:

3m-6=24

Add 6 on both sides

3m=30

Divide by 3 on both sides

m=10

Solve Ix - 11 > 4

A.{xlx <-5 or x> 5}

B. {xlx <-3 or x>5}

C.{xl-3

Answers

Answer:

Step-by-step explanation:

MT&A uses the function f(x)=475-15x-15x.to depreciate smart phones. where f represents the value of smart phone and x represents the number of months since its purchase. a) find f^-1 and explain what it represents in this situacions When will the deprecated value of smart phone be less than $100.00? what does x represent in f^-1(x) =30? What is the value of x? Graph f(x) and f^-1 (x) on the same coordinate

Answers

Answer:

Find the answers in the explanation

Step-by-step explanation:

The given function is

f(x)=475-15x

A.) To find f^-1 and explain what it represents in this situacions, let f(x) = y. That is,

Y = 475 - 15x

Interchange y and x and make y the subject of formula

X = 475 - 15y

-15y = x - 475

Y = 475/15 - x/15

Y = (475 - x) / 15

Therefore,

f^-1(x) = (475 - x) / 15

If the function depreciates the smartphone, then, the inverse function will appreciate it.

When will the deprecated value of smart phone be less than $100.00

Substitute 100 for f(x) and find x

100 = 475 - 15x

-15x = 100 - 475

-15x = - 375

X = 375/15

X = 25

Therefore, the deprecated value of smart phone be less than $100.00 in the next 26 months.

what does x represent in f^-1(x) =30?

X represent the number of months for the smartphone appreciations

What is the value of x?

Substitute the inverse function for 30 and make x the subject of formula in the equation

f^-1(x) = (475 - x) / 15

30 = (475 - x) / 15

Cross multiply

450 = 475 - x

X = 475 - 450

X = 25 months

Graph f(x) and f^-1 (x) on the same coordinate

how many times larger is 8*10^4 than 8*10^1

Answers

10^3 times or 1000 times

solve for x
[tex]\frac{3}{2}(x-2)-5=19[/tex]

to whoever helps thank you so much! <3

Answers

the answer is x=18.

the area if the classroom is 144 square feet. if the room is a square, what is the length of each side?

Answers

Answer:

The length of each side is 12 feet because 12 multiplied by 12 is 144

hope it helps

Tell whether the statement "All integers are rational numbers" is true or false. Explain your choice.

Answers

Answer:

True, all integers are rational numbers.

Step-by-step explanation:

Because each integer can be written as n/1 and integers can be positive and negative. For example, 3= 3/1 , 3 is the rational number. But all rational numbers like 1/2 =0.5 are not an integer. (fractions, decimals are not integers.)

The faucet drips 6 ¾ gallons of water in 4 hours

what is the unit rate?

Answers

Answer:

1.6875 gallons per hour

Step-by-step explanation:

"A clock is positioned on an auditorium wall with its center 9 feet above the floor. The second hand is 10 inches long and continuously moves around the clock. Let x represent the time in seconds measured from noon on a given day. Which f(x) represents the height above the floor, in feet, of the tip of the second hand?"

Answers

Answer: f(x) = 10in*cos(x*2*pi/60s) + 10in*sin(x*2*pi/60s) + 108in.

Step-by-step explanation:

When we have a circular motion, we can write this as:

f(x) = A*sin(k*x + f) + A*cos(k*x + f) + C.

where:

k is a constant that depends on the period.

f is a phase shift.

C is the mean height of the circular motion, in this case will be equal to the height of the center, that is 9ft.

C = 9ft.

A is the amplitude of the motion, in this case is equal to the radius, that is equal to the lenght of the second hand

A = 10in

But we should write both quantities in the same units, so we have:

1ft = 12in

then:

C = 9ft = 9*12in = 108in

Then our equation is:

f(x) = 10in*cos(k*x + f) + 10in*sin(k*x + f) + 108in

now, x = 0s coincides with the noon

so at x = 0s, the second hand is pointint to the twelve, this means that is in the max height, so we have:

F(0s) = 10in*cos(0 + f) + 10in*sin(0 + f) + 108 in

Now, the maximum value will be when the value inside the sinusoidals is 0.

(because cos(0) = 1 and sin(0) = 0)

then we have that f = 0.

Now, we know that it takes 60 seconds to do a full revolution, and for the sinusodial functions the period is 2*pi

Then we have:

c*60s = 2*pi

c = 2*pi/60s.

Then the equation is:

f(x) = 10in*cos(x*2*pi/60s) + 10in*sin(x*2*pi/60s) + 108in.

Answer:

B : 5/6cos(pi/30x)+9

Step-by-step explanation:

Edge 2020

Is 4.63 less than 4.14

Answers

Answer:

No, you should have learned this in 5th grade

Step-by-step explanation:

What is the solution to the division problem below? (You can use long division
or synthetic division.)
x - x2 - 11x +3
x + 3
O A. x2 - 5x+1
O B. x2 - 6x + 1
O c. x2 - 4x + 1
O D. x2 - 7x+1

Answers

Answer:

C. x² -4x +1

Step-by-step explanation:

The synthetic division is shown below. The quotient corresponds to answer choice C.

Which set of ordered pairs represents a function?
{(-8,4),(-5,7),(-8, -1),(-4,8)}
{(-5, -5), (7,2), (-7, -3), (-7,0)}
{(-6,2).(-5,6),(-3,7).(-9, 2)}
{(-7,8), (-7,2), (7,6),(4,2)}

Answers

i’m pretty sure it’s the third one

from the ordered pairs given i think it’s the third one

Subtract 2x-1 from 3x+7 Anyone know this ?

Answers

1x+6? If we go the sensible way.. I might be wrong if I am correct me

Answer: x + 8

Step-by-step explanation:

Set up the expression (3x+7) - (2x-1)

Then, distribute the negative sign across the 2x and -1 to get 3x+7-2x+1

Combine like terms: 3x-2x+7+1

= x + 8

What is the common difference in the arithmetic sequence 30, 27, 24, 21, 18...?

Answers

Answer:

-3

Step-by-step explanation:

To find the common difference take the second term minus the first term

27 - 30 = -3

Check by taking the third term and subtracting the second term

24 - 27 = -3

The common difference is -3

Other Questions

In the medicine bagwhy was the porch referred to as a medicine bag? Which one is NOT something that River Thames has provided people with over the years?A) food B) drinking water C) transportation D) building materials HELP ASAP 10 POINTS!! Create a sentence quoting a speaker using correct punctuation and capitalization. What is the simplified form of the complex fraction? 2x2+x6x2x64x29x2+5x+6 Citizens are people who belong to a country or state in what capacity?Plz I need help What is the square root of 8? How to write a mixed number in science notation [tex]45\frac{3}{8}[/tex] Economists look at any situation in terms of its component parts: the people making decisions, the environment in which they're making those decisions, and the goods or services being exchanged. For example, think about a wedding celebration. Which of the following wedding-related items are services? Check all that apply. Having a wedding gown altered The food at the reception Flowers for a wedding reception Getting your hair done for a wedding For each value of x, determine whether it is a solution to 3x + 5 = 8. Is it a solution?: -6: yes or no -2: yes or no 7: yes or no 8: yes or no Read this excerpt from "Departure."as old bones, the pine treesstrangely red where the sun comes down.I cannot say if it our love,or the day, that is ending.Read this excerpt from "Going Back to School."And ran, and was a part of what rejoices In thunderous nights of rain; lay in the grass Sun-baked and tired, looking through a maze Of tiny stems into a new green world;Which theme is expressed in both excerpts?Many people only find true happiness when they are in nature.Sometimes nature is so powerful that it can affect ones mood.Oftentimes the true meaning of life can only be found in nature.Nature is often symbolic of different emotions experienced in life. How do scientists critically analyze experimental results? I'm not sure whose lunchbox was found in the garbage can yesterday, but you can ask Mrs. Corcoran. Identify the relative pronoun used in this sentence. A) you B) I'm C) whose D) Mrs. Corcoran Find MP.MN=17NP=3yMP=5y+9 A car traveled 180 kilometers in 3 hours.which stamens bets describes the distance traveled by the car per hour ? 15. Proteins are super important because they contain are tomatoes a fruit..... What is the slope of the line ? What three forms of energy are represented when a match is lit? What did Shayss Rebellion, which took place in Massachusetts in the winter of 17861787, demonstrate to American political leaders?A.) the institution of slavery posed a threat to the American republicB.) A stronger national government was needed to solve the nations monetary problems.C.) Patriots in Massachusetts had always been more radical than those in the other states.D.) Unless they gained the right to vote, propertyless men would destroy the American republic. Solve for v -4(-5v+3)-v=4(v-3)-9

Please help!! 15 Points !!

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Please help!!

15 Points !!