Mathematics Middle School

help me quickly please!!
if
AC= 143
BC= 8x+4
AB= 7x+4
find BC.

Answers

Answer 1

Answer:

BC is 12x. An addition problem.

Step-by-step explanation:

Let me know if I am wrong.

Answer 2

Answer:

Step-by-step explanation:

Related Questions

Is using the associative property of addition a good strategy for simplifying (4/3 + 2/3) + 2? Why or why not?

Answers

Answer:

Easy way

Step-by-step explanation:

(4/3 + 2/3) + 2

= 2 + 2

Oviously (4/3 + 2/3) is directly 2.

Solve for h.

h - 45 = -35
A. h = -10
B. h = 10
C. h = -80
D. h = 80

Answers

B. h = 10

Explanation:
h - 45 = -35
+45 +45
h = 10

Choose the mixed number that is equivalent to this decimal.
3.242424…
A)3 8/33
B)3 12/25
C)3 1/4
D)3 1/5

Answers

Answer:

Step-by-step explanation:

I think this is the answer

The answer is A

if you put all of these in a calculator 3 8/33 is the only one that gets 3.242424242

Madeline is scuba diving at an elevation of −71.8 feet when his friend signals to come higher. Madeline makes three ascents, each an equal distance, to reach an elevation of −15.7 feet, where her friend is located.

What was Madeline's elevation after her first ascent?

Enter your answer as a decimal

Answers

Answer:

I believe its 112.26?

Step-by-step explanation:

Yes it is 112.26 I hope this really does help

Sean's Cafe has regular coffee and decaffeinated coffee. This morning, the cafe served 18 coffees in all, 9 of which were regular. What percentage of the coffees were regular?

Answers

Answer:

50% of the regular coffee's were regular

50%
Explanation:
multiply 9 • 100
the divide 900 into 18
it should give you 50

Elena is buying cups and plates for her party. Cups are sold in packs of 8 and plates are sold in packs of 6. She wants to have the same number of plates and cups.
Find a number of plates and cups that meet her requirement.

Answers

Answer:

24 of each; 3 packs of cups and 4 packs of plates

Step-by-step explanation:

If you want to know the minimum amount of plates and cups she can get, it would be 24.

The factors of 8 are:

8, 16, 24, 32, 40, 48, 56, 64, 72, 80

The factors of 6 are:

6, 12, 18, 24, 30, 36, 42, 48, 54, 60

The least common factor they share is 24.

She can buy 3 packs of cups and 4 packs of plates.

Elena should buy 20 pack of plates

Someone help me with this please, I really need help, and it's due tmrw...PLEASE

Answers

Answer:

the last one

Step-by-step explanation:

3.5(w) 3.5 per week or 3.5 change per week

hope this was helpful

I think it is D. 3.5 is the amount it grows every week which is why it is multiplied by the number of weeks.

All of the following are equivalent to 2(2a + b) + 8, except _____.

4 a + 2 b + 8
2(2 a + b + 4)
4( a + b + 2)
4 a + 2( b + 4)

Answers

Answer:

The answer is : 4a + 2b + 8

Step-by-step explanation:

2x2a = 4a

2xb = 2b

Consider the points (-5,2) and (3,-9)
What's the horizontal distance between the two points?

Answers

Answer:

The distance between the 2 points is about 13.6

Step-by-step explanation:

Picture the 2 points on a graph, and then look at the distance between them as the hypotenuse of a right triangle. You can easily find the length of the legs of that triangle, and with those legs, you can use the pythagorean theorem to calculate the length between the points.

The length of one leg is the distance between the 2 x-coordinates, between -5 and 3, so that's 8.

[tex]3--5=3+5=8[/tex]

The length of the other leg is the distance between the y, between 2 and -9.

[tex]-9-2=-11[/tex]

That's just a distance of 11, as there's no such thing as negative distance.

Now we have the legs, so we can find the hypotenuse:

[tex]a^2+b^2=c^2\\8^2+11^2=c^2\\64+121=c^2\\c^2=185\\c\approx13.6[/tex]

Find all the factors of 15. A) 1, 3, 5, 15 B) 2, 3, 5, 7, 15 C) 1, 2, 3, 5, 7, 15

Answers

Answer: it is b

Step-by-step explanation:

trust its b

The answer is A ) 1 , 3 , 5 , 15

how many times can 7 go into 1000

Answers

Answer:

7 can go into 1000 142 6/7 times. This is a remainder equation, but that is how many times 7 can go into 1000.

Hope this helps!

How to calculate distance between two points (-3,2) and (3,0).
And pls find the radical

Answers

√74
Explanation:
To calculate the distance use the
distance formula
d=√(x2−x1)^2+(y2−y1)^2

−−−2
where
(x1,y1)and (x2,y2)
are 2 coordinate points
The 2 points here are (-3 ,7) and (4 ,2)
let(x1,y1)=(−3,7) and (x2,y2)=
(4,2)⇒d=√(4−(−3))2+(2−7)2=√49+25=√74←in radical form

I think it’s y=3x-9?

An arts academy requires there to be 4 teachers for every 76 students and 3 tutors for every 27 students. How many students does the academy have per teacher? Per tutor? How many tutors does the academy need if it has 54 students?

Answers

Answer:

The answer is 19 students per tescher

Step-by-step explanation:

76 ÷ 4 =19

Per teacher there would be 19 students.
76 divided by 4 = 19

Per Tutor there would be 9 students
27 divided by 3 = 9

Hope this helped

Identify the parts of the expression 4.2m + (8 , 2) - 6

a. What are the terms of the expression?
b. Which term is the product of two factors?
c. Which term is a quotient?
d. Which term is a constant numerical value?

Answers

Answer:

Step-by-step explanation:

complete the table for given rule

Answers

Answer:

x y

4/3 2

8/3 10/3

22/3 24/3

Step-by-step explanation:

Substitute y with 2 for the first problem

2=x+2/3

Subtract 2/3 on both sides:

4/3

Thus:

x y

4/3 2

Now Substitute x with 8/3 for the second problem

y=8/3+2/3

Add:

y=10/3

Thus:

x y

8/3 10/3

Now Substitute x with 8/3 for the third problem

y=22/3+2/3

Add:

y=24/3

Thus:

x y

22/3 24/3

Thus the Full equation is:

x y

4/3 2

8/3 10/3

22/3 24/3

Hope this helps!

Answer:

x y

4/3 2

8/3 10/3

22/3 8

Step-by-step explanation:

y=x+2/3

2=x+2/3

2-2/3=x+2/3-2/3

6/3-2/3=x

4/3=x

y=x+2/3

y=8/3+2/3

y=10/3

y=x+2/3

y=22/3+2/3

y=24/3

Select the expressions that are equivalent to 5(6a).

Answers

Answer:

Not B

Not C

Not D

Step-by-step explanation:

Answer:first one

Step-by-step explanation:

So i picked b because it looked like the correct one? can someone tell me if it is

Answers

Yeah you are correct

B is the corect answer

The density of a substance is the mass of the substance per unit of volume. The density of the element Americium is inversely proportional to its volume. The graph shows the relationship between the density of Americium, p grams per cubic centimeters, and its volume, v cubic centimeters.

Answers

Answer:

The density of a substance is the mass of the substance per unit of volume.

Step-by-step explanation:

When mom is doing cleaning on her own it takes 2 hours. When dad does cleaning, it takes 4 hours. How long will it take if both of them work together?

Answers

2 hours because mom will just kick dad out since he’s not helping much

It will take them 8 hours

Evaluate the equation.

3w = 96
A. w = 288
B. w = 32
C. w = -32
D. w = -288

Answers

Answer:

Step-by-step explanation:

when you bring 3 to the right side its not working so when you divide it (cause you don't want any numb with the w) you get 32 :)

Answer:

Step-by-step explanation:

3w=96

W=96/3

W=32

Douglas went to Charlies General Store to get gas. He paid $52.20 for 20 gallons of gas. How much would he have paid if he got 25 gallons instead

Answers

$52.20/20= $2.61 , which equals how much he paid per gallon.

$2.61x25= $65.25 for 25 gallons of gas

Answer: $65.25

52.20 divided by 20 is 2.61. 25 multiplied by 2.61 is 65.25

n is m% of what number?

Answers

Answer:

100

Step-by-step explanation:

n/m/100

n is divided by m%

m%=m/100

m%=m/100 means to multiply. n=(m/100)•x

Order from least to greatest: 11
6
, 2
3
, 11
2
, 5
6
.

A number line contains the numbers 0, 1, 2. There are 6 equal spaces between each number.
Which list shows the fractions ordered from least to greatest?
Two-thirds, StartFraction 5 Over 6 EndFraction, 1 and one-sixth, 1 and one-half
StartFraction 5 Over 6 EndFraction, two-thirds, 1 and one-sixth, 1 and one-half
1 and one-sixth, two-thirds, 1 and one-half, StartFraction 5 Over 6 EndFraction
1 and one-sixth, 1 and one-half, two-thirds, StartFraction 5 Over 6 EndFraction

Answers

Answer:

6, 25, 62, 311

Step-by-step explanation:

hope this helps you!

23,56,112,and 116 this is from least to greatest.

HELP PLS IT DIFFICULT ND THX U.

Answers

Answer:

Circumference 1: 5

Circumference 2: 3.5

Circumference 3: 3

Step-by-step explanation:

hope this helped

Answer:

Circumference 1: 5

Circumference 2: 3.5

Circumference 3: 3

Step-by-step explanation:

Given that the function graphed is ƒ(x), what is ƒ(−5)?

I will give the best answer brainliest!

Answers

Answer:

D. 5

Step-by-step explanation:

yeah-ya............. right?

The correct answer is is answer choice D

Which calculation and answer show how to convert 3/12 to a decimal?

Answers

Answer:

Step-by-step explanation:

3/12= 1/4=0.25

Answer:

Step-by-step explanation:

step 1

Address input values.

Input values:

The fraction number = 3/12

step 2

Write it as a decimal

3/12 = 0.25

0.25 is the decimal representation for 3/12

For Percentage Conversion :

step 1

To represent 0.25 in percentage, write 0.25 as a fraction

Fraction = 0.25/1

step 2

multiply 100 to both numerator and denominator

(0.25 x 100)/(1 x 100) = 25/100

25% is the percentage representation for 3/12

15x = 6x - 90
i keep getting two

Answers

Answer: If you are trying to solve for x then I keep getting -10 but I'm gonna try again.

Answer:

Its answer is - 10

I think you did it another way. There is the process

Step-by-step explanation:

15x = 6x - 90

or, 15x - 6x = - 90

or, 9x = - 90

or, x = - 90 / 9

or, x = - 10

Select the locations on the number line to plot the points −17/8 and 13/8.

Answers

Answer: With this information the answer would be GO down twice into the negatives and make you plot point, next go down eleven times and make your plot point, and last go down seventeen times and make your plot point.

Step-by-step explanation: What you have to do is make the number line with a zero at in the middle on the left of the zero you go down into the the negative numbers and on the right you go up into the positive numbers

Step-by-step explanation:

-17/8 < 13/8

♡Discussion:

≤ Means maximum≥ minimum > means greater than< means less

Part B Using the area you found for the base of the tower, what is its approximate volume? Remember to include units in your answer. And the area of the base of the tower is 1,962.5 square feet. pls help

Answers

If you are just trying to find the volume of the cylinder shown the answer should be 25pi squared * 20 which is 39269.91 cubic ft. But I’m not quite sure how the number for the base of a tower is incorporated into the equation.

You don't have to solve the K and the equation for me, I know how to do it. I just don't know what to do for the table. It confused me...

Answers

Answer: x=18 y=2 and then it is also equal to 5.

Step-by-step explanation: all you have to do is find the ratio in the table, by dividing 48 by 8 = 6, this lets us know that the ration is 6 to 1. 6 is the x value and 1 is the y value.

X=18
Y=2
It’s equal to 5
I hope it’s right

Other Questions

The area of a rectangular dog run can be no more than 120 square feet. The length is 15 feet. What is the width of the dog run. Why did they do this PLEASE Help!!:Check for understanding: plese help 40 pts and brainliest if correct A stadium has 30 rows. The first row has 18 seats.Each row has 3 more seats than the previous row.How many seats are in the 25th row? Which of the following elements of Selection 1 would make it more difficult to create a play based on the text rather than a film?A) the setting of the text B)the sudden shifts in time C)the focus on only one major character D)the lack of dialogue within the original text Answer my questions plz! THIS QUESTION IS FIR THE ONES WHO KNOW AND SPEAKS SPANISH!!,Answer please!! At Florida A&M University, the ratio of students from Florida to students not from Florida is about 3:1. How many of its 12000 students are from I NEED HELP!!!! URGENTLY!!!! I HAVE TO GET THIS DONE THIS WEEK!!!! WILL GIVE BRAINLIEST!!!!1. You learned that waves in the ocean, sound waves, and light waves all have certain things in common. They all carry energy. The velocity, frequency, and wavelength of each is connected by the same equation. Which type of wave would you most want to learn more about? Why does it interest you? What would you want to find out about it? Write your answers in 2-3 paragraphs. (10 points) Would you like to know more about how waves in the ocean move, how sound travels, or how light works?2. If you could somehow travel inside an atom and look around, what part of the atom would you want to look at? Why? What would you want to understand better as a result of your "travels"? Write your answers in 2-3 paragraphs. (10 points) Do electrons or the nucleus interest you more? What questions do you still have about how an atom works? A number w is greater than-3 what is the difference between active and passive voice can't believe that you got me in a suit and tie I had to take a pull so I wouldn't cryYou got a line out the church door sayin' goodbyeYeah, I believe 'em when they say you're in a better placeNAME THE SONG AND THE SINGER 50 POINTS!!!!! what is the percent increase in 300 and 375 -2x + 3y=-22-6x + 3y = -18What do you have to multiply the first equation byto have the x's be opposite and the same? _________________ is a disagreement or clash between two or more people.a.Assertive communicationb.Conflict managementc.Interpersonal conflictd.Aggressive communicationPlease select the best answer from the choices providedABCD Help me with the whole thing pls help plz I don't know what I'm doing Read the dialogues and write the subject pronouns. alt_text a. . b. . a. . b. . a. . b. . c. What is the slope for these cordinates(-8,11) , (17,4) Help help help help help

help me quickly please!! if AC= 143 BC= 8x+4 AB= 7x+4 find BC.

Answers

Related Questions

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

Answers

help me quickly please!!
if
AC= 143
BC= 8x+4
AB= 7x+4
find BC.