What is the answer to number 7

What Is The Answer To Number 7

Answers

Answer 1

Answer:

Your answer should be D

Step-by-step explanation:

Because he added his terms correctly and divided correctly


Related Questions

Which ordered pair is a solution to the following linear system

Answers

Answer:

am confused

Step-by-step explanation:

Step-by-step explanation:

sorry Im not sure what the question is

Which expression represents each mathematical phrase?

Drag the answer into the box to match each phrase.

add 12 and a number
subtract a number from 12
divide a number by 12
multiply 12 by a number

Answers

Answer:

Step-by-step explanation:

add 12 and a number: 12 + c

subtract a number from 12: 12 - c

divide a number by 12: c : 12 or c/12

multiply 12 by a number: 12 · c = 12c

Answer:

the sum of a number and 12=   12+p

the quotient of a number and 12=    p/12

the difference between 12 and a number=   12-p

Step-by-step explanation:

find the x and y intercept and the slope of the graph of 8x-6y=24

Answers

Answer:

the x intersept is 3 the y intercept is 4

Step-by-step explanation:

x intersept : 24/8 = 3

y intersept : 24/6 =4

5(x-3y)-2x=6 and x=3y
Solve the equations please by substitution

Answers

x= -3 , y=-1
hope this helped !!

Answer for the first equation:

(7, -1)

Step-by-step explanation:

Original Equation: 5(x - 3y) - 2x = 6 When x = 3y

Substitute in the 3y for x:

5(3y - 3y) - 2(3y) = 6

5(0) - 6y = 6

-6y = 6

y = -1

Plug -1 in for y in the original equation:

5(x -3(-1)) - 2x = 6

5(x + 3) - 2x = 6

5x + 15 - 2x = 6

3x + 15 = 6

3x = -9

x = -3

Find the slope of a line that passes through (-12, -8) and (-15, 22).

Answers

m=22-(-8)/(-15)-(-12)=30/-3=-10

Convert 60 quarts to gallons. 60 qt = ? gal Will the converted amount have more or fewer units than the original? ​

Answers

Answer: 15 gallons .

Step-by-step explanation:

Step 1

4 quarts = 1 gallon

therefore 60 quarts = (60 quarts x 1 gallon) / 4 quarts

= 15 gallons .

Step 2-- The converted amount which is 15  has fewer units than the original which is 60.

pls help asap!!!!!!!!

Answers

Answer:

I think option B is correct

generosity

hope my answer is helpful to you

plz mark me as brainlist

There are 30 marbles in a bag. 24 of them are blue. What percentage of the marbles are blue?

Answers

Answer:

80%

Step-by-step explanation:

24/30 = x/100

100/30= 3 1/3

24 x 3 1/3= 80

(-6y + 8y4 − 5)(y2 − 11y)

Answers

Answer:

[tex]- 8y^6 - 88y^5-6y^3 + 71y^2 + 55y[/tex]

Step-by-step explanation:

Given

[tex](-6y + 8y^4 - 5)(y^2 - 11y)[/tex]

Required

Evaluate

[tex](-6y + 8y^4 - 5)(y^2 - 11y)[/tex]

Expand Brackets

[tex]y^2(-6y + 8y^4 - 5)- 11y(-6y + 8y^4 - 5)[/tex]

Open brackets

[tex]-6y^3 - 8y^6 + 5y^2 + 66y^2 - 88y^5 + 55y[/tex]

Collect Like Terms

[tex]- 8y^6 - 88y^5-6y^3 + 5y^2 + 66y^2 + 55y[/tex]

[tex]- 8y^6 - 88y^5-6y^3 + 71y^2 + 55y[/tex]

The area of cross section of a prism is 45cm² and its height is,10cm. Find its volume​

Answers

Answer:

The Volume of triangular prism

                     V = 450 cm³

Step-by-step explanation:

Explanation:-

Given The area of cross section of a prism A = 45cm²

and     height (h) = 10 cm

The Volume of triangular prism

                V = ( Base area X Height )

                    =  45 X 10

                    = 450 cm³

The Volume of triangular prism

                     V = 450 cm³

While bolling with friends, Brandy rolls a strike in 2 out of 10 frames. What is the experimental probability that Brandy will roll a strike in the first frame of the game?

Answers

I hate you I stole your points

f(x) = x^2. What is g(x)?

Answers

Answer:

D. just sub x = 1, and if the y you get is 5 then that's the answer

what is the reciprocal of 8/5?

Answers

Answer:

5/8

Step-by-step explanation:

To find the reciprocal, flip the fraction. The sign remains the same.

The reciprocal of 8/5 is 5/8.

Answer: 5/8

Answer:

D

Step-by-step explanation:

Solve for the missing variable(s) and SHOW ALL WORK

Answers

Answer:

x = 4

Step-by-step explanation:

From the pythagoras theorem

(x+2)^2 = x(5+x)

x^2 + 4x + 4 = 5x + x^2

x^2 + 4x + 4 - 5x - x^2 = 0

-x + 4 = 0

4 = x

what is the solution of the equation?
-5=q+2​

Answers

Step-by-step explanation:

-5=q+2

-5+2=q

q= -3

hope it helps.

Answer:

q = -7

Step-by-step explanation:

q+2=-5

subtract 2 from both sides

q+2-2=-5-2

q+0=-7

q=-7

Hope this helps. Have a nice day. May it be filled with joy and happiness. Please, stay safe and wash your hands. Happy Holidays.

What is the equation of a line with a slope of
(-2, -4)?
that passes through the point,
O A. y--d
OB. y--2
O C. y= 2x- 4
ODy--3

Answers

Answer: D. 1/2x - 3

Hope this helps :)

Simplify 3(x- 4) + 8(x+ 2).
O 11x - 4
O 11x +4
O 11x -2

Answers

Answer:

11x +4

Step-by-step explanation:

Select the correct answer.
ΔABC with vertices A(-3, 0), B(-2, 3), C(-1, 1) is rotated 180° clockwise about the origin. It is then reflected across the line y = -x. What are the coordinates of the vertices of the image?

A.
A'(0, 3), B'(2, 3), C'(1, 1)

B.
A'(0, -3), B'(3, -2), C'(1, -1)

C.
A'(-3, 0), B'(-3, 2), C'(-1, 1)

D.
A'(0, -3), B'(-2, -3), C'(-1, -1)

Answers

Answer:

the answer is d. hope this helps

Answer:

D.

A'(0, -3), B'(-2, -3), C'(-1, -1)

Step-by-step explanation:

PLATO2022 LNHS

In a scale of an apartment,1 centimeter represents 2 3/4 feet, if the length of the kitchen is 4 1/2 cm on the scale drawing what is the actual length in feet of the kitchen

Answers

Answer:

Step-by-step explanation:

12 3/8

.
The school band decided to make pizza kits to sell for their fundraiser.
The materials cost them $
1500, and they sold the pizza kits for $8.50 a
kit. The Function below can be used to find the profit p(x), where x is
the nunuer of kits sold.
P(x) = 8.50x- 1500
If the band made a profit of $2920, how many pizza kits were sold?
a. 167 kits
b. 344 kits
C. 402 kits
d. 520 kits

Answers

Answer:

520

Step-by-step explanation:

Given that:

Profit function p(x) is :

P(x) = 8.50x- 1500

If the profit made = $2920 ; the number of pizza kits sold is :

Then p(x) = 2920

Putting p(x) = 2920 in the equation :

2920 = 8.50x - 1500

2920 + 1500 = 8.50x

4420 = 8.50x

Divide both sides by 8.50

4420 / 8.50 = 8.50x / 8.50

520 = x

Hence, number of pizza kits sold is 520

Answer:

Step-by-step explanation:

569

Write the equation of a circle with a center at (-1, 2) and radius of 7. Explain how you wrote your equation.please help

Answers

Answer:

idek

Step-by-step explanation:

The mean balance of all checking accounts at a bank on December 31, 2005, was $900. A random sample of 53 checking accounts taken recently from this bank gave a mean balance of $841 with a standard deviation of $190. Using the 1% significance level, can you conclude that the mean balance of such accounts has decreased during this period

Answers

Answer:

Step-by-step explanation:

Given that:

The population mean μ = 900

The sample size n = 53

The sample mean = 841

The standard deviation = 190

The level of significance = 0.01

To test the claim that the mean balance of the accounts has decreased during the period.

The null and the alternative hypothesis can be computed as:

[tex]H_o : \mu \ge 900 \\ \\ H_1 : \mu < 900[/tex]

This is a left-tailed test since the alternative is less than 900

The test statistics can be computed as:

[tex]Z = \dfrac{\overline x - \mu}{\dfrac{s}{\sqrt{n}} }[/tex]

[tex]Z = \dfrac{841 -900}{\dfrac{190}{\sqrt{53}} }[/tex]

[tex]Z = \dfrac{-59}{\dfrac{190}{7.28}}[/tex]

Z = -2.26

The p-value = P(Z < -2.26)

From the z-tables

The p-value = 0.01191

The p-value ≅ 0.012

Decision rule: To reject the null hypothesis if the significance level is > p-value.

We failed to reject the null hypothesis.

Conclusion: Thus, there is insufficient evidence to conclude that such accounts mean balance has decreased during this period.

A cook used 6 gal of cooking oil last month. She used 15% less this
month. How much cooking oil did she use this month?

Answers

Answer:

100%-15%=85%

She used 85% of the total oil for last month

So 6gallons × 85 ÷ 100 = 5.1 gal

16 is 40% of what number

Answers

Answer:

40

Step-by-step explanation:

16 is 40 percent that means that :

32 is 80 percent

8 is 20 percent.

32 + 8 is 40 ------  80 percent+ 20 percent =100 percent

40 is the number whose 40% is 16.

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

We need to find the number whose 40% is 16.

Let us consider the number be x.

Convert 40% to the decimal by dividing with 100

40/100=0.4

Now multiply zero point four with x which gives 16

0.4x=16

Divide both sides by 0.4

x=16/0.4

x=40

Hence, 40 is the number whose 40% is 16.

To learn more on Percentage click:

https://brainly.com/question/28269290

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what is the standard form of (x + 1 + i)(x + 1 − i)

Answers

Answer:

hope it helps

Step-by-step explanation:

please mark me as brainliest thank you

–10 – (–3) = ?????
PLEASE HELP

Answers

Answer:

-7

Step-by-step explanation:

−10−(−3)

=−10−(−3)

=−10+3

=−7

Answer:

-7

you're welcome

What value of x will make the polygon a parallelogram?

Answers

Step-by-step explanation:

In a parallelogram, opposite sides are equal.

Hence 3x = 6 and x = 2.

Help plsssss is due at 11:59 I don’t have much time

Answers

The value of x is 18. They are parallel lines cut by a transversal, that means you have to set them both equal to each other in order to find x.

Help, BRAINLIEST to CORRECT answer!

Potential energy is the energy of motion.
Group of answer choices

True

False

Answers

Answer:

False

Step-by-step explanation:

Energy stored in an object is potential energy but energy in motion is kinetic energy  

find the product of (2x+4)(5x-3y)(8x+4y).
please help me solve this asap​

Answers

(2x+4)(5x-3y)(8x+4y)
= (10x^2 - 6xy + 20x - 12y)(8x+4y)
=80x^3+40x^2y-48x^2y-24xy^2+160x^2+80xy-96xy-48y^2
= 80x^3-8x^2y-72xy^2+160x^2-16xy

Answer:
80^3 - 8x^2y - 72xy^2 + 160^2 - 16xy
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