Urgent please!!! I really don’t understand it, tysm to anyone who can answer thissss :))))
(53 points)

Urgent Please!!! I Really Dont Understand It, Tysm To Anyone Who Can Answer Thissss :)))) (53 Points)

Answers

Answer 1

Answer:

(ax + by + cz)/(a + b + c)

Step-by-step explanation:

Average = Sum / Number

In terms of the scores we calculate the sum as:

ax + by + cz

The number is the sum of the frequencies:

a + b + c

Mean average score is:

(ax + by + cz)/(a + b + c)

Related Questions

Which choices describe the number of acorns?

Answers

Answer: D

Step-by-step explanation:

Because if you count from the tup to bottom their is 4 and if you count from top to right its 5 so its... 5 x 4.

IM NOT GOOD AT EXPLAINING ... CAN SOMEONE HELP ME EXPLAIN ?...

Answe my  uuuuuuttt

Step-by-step explanation:

A rectangular football field is 6x meters long and 3x meters wide. If its
perimeter is 360 meters, then the value of x is

Answers

Answer:dgrgfhtbsdvdsvs

Step-by-step explanation:dssfdfd

Answer:

x = 20

Step-by-step explanation:

perimeter = 2(width) + 2(length)

2(6x) + 2(3x) = 360

12x + 6x = 360

18x = 360

divide both sides by 18

x = 20

solve by completing the square.

3x^2+x-2=0

Answers

Answer: x  =  2 /3  ,  −  1

Step-by-step explanation:

Which term has the definition "A fraction when the top and bottom cannot be any smaller, while still being whole numbers"? Group of answer choices Numerator Simplest Form Denominator Least Common Multiple (LCM)

Answers

Answer:

simplest form

Step-by-step explanation:

Simplest form is a method of converting the fraction to its lowest multiple.

For example, the fraction 25/100 isn't in its simplest form

Both the numerator and the denominator can be divided by 5. When divided by 5 the fraction becomes 5/20.

5/20 is still not in its simplest form because it can be divided by 5. When divided by 5, the fraction becomes 1/4.

1/4 is now in its simplest form because both the numerator and denominator cannot be divided by any other number

The radius of the front wheel of Monica's bicycle is 1 foot. About how far has Monica traveled after the wheel has made 100 revolutions? (use 3.14 for pi)

Answers

Answer:

Distance travel by Monica = 628 ft

Step-by-step explanation:

Given:

Radius of whee l = 1 ft

Number of revolution = 100

Find:

Distance travel by Monica

Computation:

Distance travel by Monica = 100[Circumference of wheel]

Distance travel by Monica = 100[2πr]

Distance travel by Monica = 100[2(3.14)(1)]

Distance travel by Monica = 100[6.28]

Distance travel by Monica = 628 ft

j /-2 + 7 = -12. what is the value of j

Answers

Answer:

j = 38

Explanation:

ʲ⁄₋₂ + 7 = -12

Subtract 7 From Both Sides

ʲ⁄₋₂ + 7 - 7 = -12 - 7

Simplify

ʲ⁄₋₂ = -19

Multiply Both Sides By -2

(-2) ʲ⁄₋₂ = -19 (-2)

j = 38

Answer:

38

Step-by-step explanation:

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.
Studled: 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
Which of the following statements are true?
There is no mode of the group that studied.
In general, those students that studied scored much higher than those students that did not study.
The mean of the group that studied is over 15 percentage points higher than the mean of the group that did not study.
The median of the group that studied is over 95.
The median of the group that did not study is less than 80

Answers

Answer:

The median of the group that did not study is less than 80

Step-by-step explanation:

The median of the group that did not study is 79.5

Help me answer this math question

Answers

The equation representing the total number of students in the class: b+g=36

The equation representing the total number of boys in the class: b=2g-3

Sentence representing solution: The number of boys in the class is 13 and the number of girls in the class is 26

Which one is it? Will receive Brainliest!!!

Answers

[tex]\huge\text{Hey there!}[/tex]

[tex]\large\text{GUIDE}\downarrow\\\\\large\text{\bf{ Trinomial}}\large\text{ equals \bf{THREE TERMS}}\large\text{ because \underline{TRI means}}\\\large\text{\underline{THREE}}\\\\\large\text{\bf{Monomial}}\large\text{ equals \bf{ONE TERM}}\large\text{ because\underline{ MONO means ONE}}\\\\\large\text{\bf{Polynomial}}\large\text{ equals SEVERAL TERMS because \underline{POLY means MULTIPLE}}\\\\\large\text{\bf{Binomial}}}\large\text{ equals \bf{TWO TERMS}}\large\text{ because \underline{BI means TWO}}}[/tex]

[tex]\large\text{We have approximately FOUR TERMS, so we could ELIMINATE}\\\large\text{OPTIONS A through B and Option D as a possible answer}\\\large\text{because remember what we said.. tri is three, mono is one, \& bi is two}[/tex]

[tex]\text{This leaves \bf{\underline{option C}}}\text{ as your given \underline{answer}}\text{ because it has MANY terms }[/tex]

[tex]\boxed{\boxed{\large\textsf{Answer: \large\text{\bf{C. polynomial}}}}}}\huge\checkmark[/tex]

[tex]\textsf{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

x =

12
4
6
LOOK AT IMAGE

Answers

Answer:

12

Step-by-step explanation:

I think that’s the only thing that makes sense.

Answer:

12

Step-by-step explanation:

Hope this helps.

no joke i will give brainliest and thanks for the asnwer and go 5 star all ur past answers if u get this correct pls dont do wrong answers

Answers

Answer:

PR = PQ and ST = UT.

If this is not correct then:

PR = 8 ans UT = 2z+3

Step-by-step explanation:

What expression is equivalent to 6(3x+4)?

Answers

Hey there!

“Which expression is equivalent to 6(3x + 4)

6(3x + 4)

6(3x) + 6(4)

6(3x) = 18x

6(4) = 24

= 18x + 24

Possible answer: 18x + 24 ☑️

Good luck on your assignment and enjoy your day!

~Amphitrite1049:)

FOR BIG BRAINERS ONLY
(193849821E283701923009328347182*2983472091092830991248734/187234983742347)*0 + 2

Answers

Answer:

the answer is 2................

It’s 2 , and you put an “E” in the middle of the number XD

Jayden filled his 290 gallon pool with water in 4 hours. How many gallons per hour did he use?

Answers

Answer:

72.5 gallons an hour (i think im sorry if im wrong)

Step-by-step explanation:

Answer Fast Please!! Find the volume of the cylinder. Use 3.14 for pi.

Answers

Answer:

The answer is 24501.42

Step-by-step explanation:

Diameter=34m

Radius=34÷2 = 17m

Height=27m

Volume=πr^2h

Volume= 3.14×(17)^2×27

Volume= 3.14×289×27

Volume= 24501.42m^2

One question, seventh grade question, please help! It’s not long!

Answers

Answer:

The Correct Answer Is 4

Step-by-step explanation:

So if you have $12 and you can buy $3 with each box of envelopes, you think, how many times can 3 go into 12

count in your head, 3 6 9 12 therefore, ITS 4

here is your equation to match this:

3 x ? = 12

You probably already know this, but i simple way to figure this out is to flip the equation to

12/3 = ?

so from here you can tell that 3 goes into 12 4 times

so the equation is

3 x 4 = 12

Hope It helps!

Solve using system by elimination:
-3x + 4y = -18
x = -2y - 4

Answers

Answer:

x=2 and y=−3

Step-by-step explanation:

Use math papa's systems of equations calculator that shows work!

:)

Answer:

I'm doing this now in school. its a pain

Step-by-step explanation:

x=2

y=-3

28% of the animals in an animal
rescue centre are cats. What
percentage are dogs?

Answers

Answer: Percentage of cats = 28%

Therefore, percentage of dogs = (100-28)%

= 72%

Step-by-step explanation:

hope this helps have a great night❤️

PLEASE HELP!!!
Write a simplified equation to solve for X.

Using the equation, solve for x

Answers

Answer:

x = 40

Step-by-step explanation:

x + 100 +  x = 180 {Straight line angles}

2x   + 100 = 180      {subtract 100 from both sides}

         2x = 180 - 100

         2x = 80      {Divide both sides by 2)

           x = 80/2

          x = 40

Answer:

x=40

Step-by-step explanation:

2x+100=180

2x=180-100

2x=80

x=40

pls pls help desprate

Answers

Step-by-step explanation:

x=33 y= -22

52 -33

-22=33m+b

-33=52+b

-11=19m

m=-11/19

-22= 19.105+ b

b= -41.105

y=-11x/19 -41.105

x intercept when y=0

0=-11x/19 -41.105

41.105=-11x/19

-11x= 780.995=781

x= - 71

x-intercept = -71

Question : Find the length of the missing side. round your answer to the nearest tenth.

Answers

Answer:

8.5

Step-by-step explanation:

What is the value of s?
units

Answers

Answer:

s = 17 units

Step-by-step explanation:

In triangle ABD,

(AB)² + (BD)² = (AD)² (by Pythagoras Theorem)

=> 8² + 15² = s²

=> 64 + 225 = s²

=> s = [tex]\sqrt{289}[/tex]

=> s = 17 units

Hope it helps :)

Please mark my answer as the brainliest

What is the measure of 1?
A.15
B.35
C.37
D.79

Answers

Answer:

we have

1+2=180(being co-interior angle)

2x+5+3x-10=180

5x-5=180

5x=180+5

x=185/5=37

m<1=2x+5=2×37+5=74+5=79

30x + 4y = 1,040
12x + 16y = 2,000

Answers

Answer:

(15x+2y)

Step-by-step explanation:

not entirely sure but i hope this helps :) have a nice day !!

The values of x and y in the following equation system are 20 and 110, respectively.

What are System of equation?

simultaneous equations, system of equations Two or more equations in algebra must be solved jointly (i.e., the solution must satisfy all the equations in the system). The number of equations must match the number of unknowns for a system to have a singular solution.

There are four methods to solving systems of equations: graphing, substitution, elimination and matrices.

given a system of equation:

30x + 4y = 1,040.....(1)

12x + 16y = 2,000...…(2)

We will solve it by using substitution method,

Multiply with 2.5 in equation (2) and subtract it from equation (1)

30x + 4y - 30x - 40y = 1040 - 5000

36y = 3960

y = 110

Substitute this value of y in equation (1)

30x + 440 = 1040

30x = 600

x = 20

Therefore, The value of x and y are 20 and 110 respectively for the given system of equation.

Learn more about System of equation here:

https://brainly.com/question/12628931

#SPJ2

Which coordinate in this ordered pair is the X coordinate? (5,-8)

Answers

Answer:

5

Step-by-step explanation:

The x coordinate is always listed first

The coordinate in this ordered pair (5, -8) the X coordinate will be 5.

What is an ordered pair?

An ordered pair is made up of the ordinate and abscissa coordinates, with the two values given in parenthesis in a certain order.

Paired in order. Two numbers that must be provided in a specific order are considered ordered pairs. A set of two integers used to locate a point in a coordinate plane is typically referred to as an ordered pair.

The coordinate is given below.

(5, -8)

The y-coordinate is -8 and the x-coordinate is 5.

The ordered pairs are written in a form of (x,y).

Therefore, the ordered pair corresponding to the given coordinates is (-8,9).

Learn more about the ordered pairs;

brainly.com/question/28874341

#SPJ2

Alice has a total of 12 dimes and nickels.she has 2 more nickels than dimes.which equation represents the given problem situation?

A.c+2c=12,where c is the number of nickels

B.c+(c+2)=12,where c is the numbers of nickels

C.c+(c+2)=12,where c is the number of dimes

D.c+2c=12,where c is the number of dimes

Answers

the answer to your question is B

similarities transformations​

Answers

Answer:

B 1/3 then reflection across y axis then move figure 2 units to down and 1 right.

Step-by-step explanation:

The figure ABC is bigger than FED so the scale factor is less than one since we are going to ABC to FED. Let look at corresponding sides, AB and FE. AB distance is 3. FE distance is 1 so let divide

[tex] \frac{fe}{ab} [/tex]

[tex] \frac{1}{3} [/tex]

The scale factor is 1/3.

The new points are at A'(-2,0) B'(-2,1) C'(-1,0).

Then we apply reflection.

Since FED is in the 4th quadrant, we are going to reflect across the y axis.

That becomes using formula

(x,y) goes to (-x,y) when reflecting across yaxis.

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

Now we will apply the translation. We can simply just move the figure 2 units down and 1 unit to the right.

Answer:

b

Step-by-step explanation:

Read and understand the problem Guide Questions solution​

Answers

Yeahhhhhhhhhhhhhhhhhhhhhh

squares square roots, perfect square

Answers

The perfect squares are 25, 36, 49, 64, 81, 100, 121, 144, 169. You know a number is a perfect square when there is a whole number that can be multiplied by itself to get the number. Example: 25= 5x5
Hope that helps if you need a better explanation let me know.

Please help, I can’t think today
-(4-x) = ?

Answers

Answer:

simplified equation is -4+x

x=4

Step-by-step explanation:

-4+x=0

+4

x=4

Answer:

x-4

Step-by-step explanation:

1. Rearrange terms : −(4−x)  −(−+4)  Then Distribute the negative: −(−+4)   1−4

Multiply by 1: 1−4   so x-4  

Hope this helps !

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