Mathematics Middle School

solve for x

please help and include an explanation

Solve For Xplease Help And Include An Explanation

Answers

Answer 1
In the diagram, you can tell the corner the problem is in is 90°, so you take your equations and set it equal to 90 (21x+6=90) and do the basic algebra.

Answer: x=4 :)
Hope that helps

Related Questions

A submarine starts at 0 units and has groups of 3 floats and groups of 4 anchors attached.
Using these groups of floats and anchors, write as many different expressions as you can that would make the submarine's final position -5 units.
write three expressions

Answers

Answer:

-12

Step-by-step explanation:

The three equivalent expressions of the final position are:

-(5)(3) - (2)(4), -(5)(3) + (-2)(4) and -(5)(3) + (2)(-4)

From the question,

Each float takes a step of 5 unitsEach group takes a step of 2 units

So, the final position of the submarine is:

Final = -(5)(3) - (2)(4)

The minus "-" sign implies that the submarine moves downwards i.e. it sinks

The equivalent expressions of the final position are:

-(5)(3) - (2)(4), -(5)(3) + (-2)(4) and -(5)(3) + (2)(-4)

Read more about equivalent expressions at:

https://brainly.com/question/2972832

Help ;-;
Mark's bill for lunch at a restaurant is $14.50, and he wants to leave a 18% tip.
How much should he leave for the tip?

A. $2.18

B. $2.61

C. $11.60

D. $261.00

Answers

It’s B because you divide 18 percent from 14.50 dollars.
It would be B. Because 14.50 times .18 equals 2.61. Just put a decimal on it and move it to the right twice and multiply that by 14.50. If you need a better explanation you can message me! Hope this helps!:)

please help meeee!!!!!!!!!1

Answers

D

is that what you answered or was that the answer

Help plz :((
I'll give brainliest

Answers

Answer:

A. The source of energy for the water cycle is the sun.

B. Condensation would be the process that changes the water vapor into water droplets that form the cloud.

C. Arrow X would be runoff

Which of these tables represents a linear function?

x y
3 3
4 4
5 6
6 7

x y
3 6
4 5
5 4
6 3

x y
3 7
4 6
5 5
6 3

x y
3 2
4 4
5 5
6 6​

Answers

If you still need help it would be the second one

Please help me I just need the ticket price.

Answers

$167.... That an expensive tickets

Anita incorrectly wrote the equation z = w – 18 to describe the pattern in the table.
Choose the best description of Anita’s error.

Answers

D Anita only compared the values in the row for z.

The best description for Anita's error is z = 9w.

What is an equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 4 = 9 is an expression.

We have,

From the table,

The pattern that describes the table.

Let the pattern be z = mw + c

Now,

(3, 27) and (5, 45)

m = (45 - 27) / (5 - 3) = 18/2 = 9

Now,

(3, 27) = (w, z)

27 = 9 x 3 + c

27 - 27 = c

c = 0

Now,

The pattern for the table.

z = 9w

Thus,

The patter for the table is z = 9w.

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ2

Explain how each part of the equation 9=3(x+2) is represented for 9

Answers

Answer:

because there's an equals sign and if you want the answer x=1

Step-by-step explanation:

because 9=3x+6 cancel out 6, 3=3x divided on both sides, 1=x

Answer:

x=1

Step-by-step explanation:

I really need help mad for it to be correct!!!!

Answers

Answer:

0.2

Step-by-step explanation:

I hope it helps, I did the math!

Hello again davetriona12! I can help you.

We have 2.99, 3.19, 3.39, and 3.79

In order to solve this, we need to find out how much is being added every time. To do this, we will subtract 2.99 from 3.19 which gives us 0.20

So each time, 0.20 gets added.

Now that we have that information, we are ready to find the blanks.

For the first blank, we will subtract 2.99 - 0.20 which will give you 2.79

For the second blank, we will add 0.20 to 3.39 which will give you 3.59

Hope this helps you!

#LearnWithBrainly

https://brainly.com/question/21679065

PLS HELLLLLLPPPPPP MMEEEEEE

Which of the following is a solution to the inequality x≤−2
A.-3

B.-2

C.-1

D. 0

E.1

Answers

Answer:

-3

Step-by-step explanation:

The answer of this A -3

ack i need help on this problem

Answers

Answer:

x = 10.5

Step-by-step explanation:

The correct answer is 10.5

Please help meee and explain specifically!!

Answers

an isosceles triangle is when 2 angles are the same measure. an triangles angle equal to 180 degrees. therefore angle A is 80 degrees as well as angle B equals 80 degrees. since the angles of a triangle equal to 180 you subtract the two known angles to find angle C. So 180-80-80 which equals to 20.


Therefore angle C=20 degrees

A submarine starts at 0 units and has groups of 3 floats and groups of 4 anchors attached. Which expression would make the submarine sink the lowest?
A : -(5)(3)+(2)(-4)
B :(5)(3)-(2)(-4)
C: -(5)(3)-(2)(-4)
D: (2)(3)+(5)(-4)
E: -(2)(3)-(5)(-4)
What will its final position be?

Answers

Answer:

The lowest point would be A.

Step-by-step explanation:

A. has the value of -23

Pls hurry 98 points!!!!

Answers

Answer:

28x + 8y + 2

Step-by-step explanation:

multiply all numbers by -2 = -6x - 24y +10 +34x +32y - 8, then combine like terms to get 28x, 8y, and 2.

equation = 28x + 8y + 2.

Hope it helps!!!! :)))

If it helps can I have brainliest?

Answer:

C.

Step-by-step explanation:

Can someone plz help me with this one problem plz!!!

Answers

the answer is 77x + 298
77x + 298 is the answer! Have a great day!

Which statement describes the relationships between x and y in these two equations?

y = 3x

y = x + 3




In y = 3x, the value of y is 3 times the value of x, and in y = x + 3, the value of y is 3 more than the value of x.

In y = 3x, the value of y is 3 more than the value of x, and in y = x + 3, the value of y is 3 times the value of x.

In y = 3x and y = x + 3, the value of y is 3 more than the value of x.

In y = 3x and y = x + 3, the value of y is 3 times more than the value of x.

Answers

Answer:

A

Step-by-step explanation:

A i think so no sure

.........................................................................

Answers

D and E is correct, I hope you get a good grade!

what is the y-intercept (1, 5)

Answers

I think it’s 2.5 Cuzz yes
The 5 because (x,y) is how coordinates are written

The length of a rectangle is 3 1/6 cm longer than the width. The perimeter of the rectangle is 15 1/3 cm. What are the width and length of this rectangle?
PLS HELP ASAP!!!!!!!!!!!!!!!!!

Answers

Answer:

The width of rectangle is  cm and length is  cm.

Step-by-step explanation:

Let,

Width of rectangle = w

Length of rectangle =

Perimeter of rectangle =  cm

Perimeter = 2(Length + Width)

Dividing both sides by 4

Width of rectangle =

The width of rectangle is  cm and length is  cm.

Keywords: rectangle, perimeter

Help plsss !!! I’m begging !

Answers

Answer:

U.S. Constitution

Step-by-step explanation:

B! The US Constitution. (:

A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claimed they had studied at least one hour for the test. The remaining twelve students admitted that they had not studied for the test at all. The test results (expressed as a percent) for the two groups are shown below.


Studied: 88, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 84

Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89

Calculate the range and interquartile range for each set of data.
Using complete sentences, compare the data sets based on your results in part A.

Answers

You add all of the numbers and the divid by the amount of number for example 88+ ......... = 1667 and then you divid by 18 because that is how many numbers there are equaling 92.61% so 92.61% STUDIED

Answer:

horrible scores!

Step-by-step explanation:

The height of a building is proportional to the number of floors. The figure shows the height of a building with floors. Complete parts a and b. a. Write the ratio of height of the building to the number of floors.​ Then, find the unit​ rate, and explain what it means in this situation. Fill in the correct answers to complete the sentences. The ratio of height of the building to the number of floors is . The unit rate is . This means that each floor of the building is ft high.

Answers

Answer:

1:13

1 floor per 13 feet.

It means how many floors are to be allocated in a certain area of space.

Step-by-step explanation:

Answer:


Meaning: Each floor of the buiding has a height of 15 feet.
Step-by-step explanation:
The missing figure is attached.
By definition, the ratios are used to compare two or more things or quantities.
In this case you must write the ratio of height of the building to the number of floors it has.
You can observe in the figure that the building has a height of 135 feet, and, since it has 9 floors, you can write the following ratio:

Therefore, dividing the numerator by the denominator, you get that the unit rate is:

This means that each floor of the buiding has a height of 15 feet

I know it's wrong

Find the slope of the line represented by the table of values.

Answers

Answer:

9/2 or4.5

Step-by-step explanation:

(2,8) (4,13)

y2-y1/x2-x1=m

13-8/4-2/=9/2

What is the sum (2/5 x + 5/8) + (1/5 x - 1/4)?

Answers

Answer:

3x+3/8

Step-by-step explanation:

see screenshot

Plz help...

ANSWERS ONLY!

Answers

Answer:

1. 7 > 4 1/2           I'm only gonna do page one cause it's easy

2. 16 > 0

3. 3 1/2 < 5 1/2

Step-by-step explanation:

The letters of the alphabet are written on cards and placed in a brown paper bag. What is the probability of drawing a vowel, NOT replacing it, and then drawing a Z?

Answers

Answer:

0.1%

Step-by-step explanation:

Good Luck

I'LL GIVE BRAINLIEST:

Answers

Answer:

B

Step-by-step explanation:

HELPPPPSSSSSS MEEE
(15 POINTS)

Answers

Step by step

I hope it helps

Answer:

B 216

Step-by-step explanation:

you need to mulimply and then do some I have no idea what I’m talking abou:)

Please provide explanation IF you can. Very Confused!!

Answers

Really simple the circle has specific dividing corners that will add on to the 26 add all those to get your inches

Answer:

41.63

Step-by-step explanation:

Circumference = 2pi(r)

26.5 / 2 = 13.25 (radius)

2pi(13.25) = 83.25 (circumference of the full circle)

83.25 / 2 = 41.625 or 41.63

A store bought a camera for $300 and sold it for $714. What was the markup percentage?

Answers

Answer:The markup is 40% of the $25 cost, so the markup is:

(0.40)(25) = 10

Then the selling price, being the cost plus markup, is:

25 + 10 = 35

The item sold for $35.

Step-by-step explanation:

Other Questions
Help please!! I will report random answers This sentence is in passive voice.Change it to active voice-' A new shopping mall was designed by the architects near our school.' solve this please 3(w+1.6) In this case you have unlimited iron, but only 6.40 moles of oxygen (O2). How much Fe2O3 can you produce? HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Please show work :) thanks for the help. Fill in the blankThe (blank) of a rock is a result of its mineral composition. Pleaseee helppp answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!! Solve by Substitution:3x-2y = 4y = -2x + 5YALL PLZ HELP ILL DO ANYTHING Find the area of the composite figure. What property of water is primary for living organisms? (SC.6.E.7.4) *1 pointIt is odorless.It does not conduct electricity.It is tastelessIt is liquid at most temperatures on Earth. there are 21 colored balls sindhu took 4/7 rosey took 1/7 and ritesh took 2/7 who took the least numbers of balls Why is absolute dating more accurate than relative dating? can u help me plss ill give u brainliest PLEASE HELPThe table shows values for functions f(x) and g(x)What is the solution to f(x) = g(x) select each correct answer Anita incorrectly wrote the equation z = w 18 to describe the pattern in the table.Choose the best description of Anitas error. PLS HELP ILL GIVE BRAINLIEST!! Which of the following is the best explanation for why wine glasses are carried by the stem? can u plzz find me a length of adjacent la palabra "breves" es una palabra grave,aguda,esdrujula