Samir recorded the grade-level and instrument of everyone in the middle school School of Rock below. Seventh Grade Students Instrument # of Students Guitar 6 Bass 4 Drums 6 Keyboard 7 Eighth Grade Students Instrument # of Students Guitar 9 Bass 9 Drums 9 Keyboard 10 Based on these results, express the probability that a seventh grader chosen at random will play an instrument other than drums as a fraction in simplest form.

Answers

Answer 1

Using it's concept, it is found that there is a [tex]\frac{17}{23}[/tex] probability that a seventh grader chosen at random will play an instrument other than drums.

What is a probability?

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem:

There is a total of 6 + 4 + 6 + 7 = 23 seventh graders.Of those, 23 - 6 = 17 play instruments that are not the drum.

Hence:

[tex]p = \frac{17}{23}[/tex]

There is a [tex]\frac{17}{23}[/tex] probability that a seventh grader chosen at random will play an instrument other than drums.

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Related Questions

a. If mQR = 80° and mQS = 150°, what is mZP?

Answers

Answer:

mP = 35

Step-by-step explanation:

QR = 80

QS = 150

The measure of the angle formed by a secant and a tangent intersecting in the exterior of a circle is half the difference between the measures of the intercepted arcs.

This means that (150-80)/2 = mP

mP = 35 degrees

Hope this helps!

An angle measures 140.6° more than the measure of its supplementary angle. What is the measure of each angle?

Answers

Answer:

angle one is 23.3

Step-by-step explanation:

yw

write each quotation as a fraction or mixed number​

Answers

Step-by-step explanation:

wheres. the. quatation it doesnt say

Find the missing angle.
26°

Answers

Answer:

25

Step-by-step explanation:

if you see 26-24=2

=>27-x=2

=>-x=2-27

=>-x=-25

=>x=25

can someone help me with this?​

Answers

Answer:

30°

Explanation:

∠LMP + ∠PMN = 180°

[∠LMO + ∠OMP] + [∠PMR + ∠RMN] = 180°

FIND x

(x - 10) + (x + 30) + x + 40 = 180

3x - 10 + 30 + 40 = 180

3x + 60 = 180

3x = 120

x =40

FIND ∠LMO

∠LMO = x - 10

∠LMO = (40) - 10

∠LMO = 30°

Hope this helps and God bless!

Answer:

∠LMO = 30°

Step-by-step explanation:

Angles on a straight line add up to 180°

⇒ (x - 10)° + (x + 30)° + 40° + x° = 180°

⇒ x° + x° + x° - 10° + 30° + 40° = 180°

⇒ 3x° + 60° = 180°

⇒ 3x° = 120°

⇒ x = 40

Substitute found value of x into the expression for ∠LMO:

⇒ ∠LMO = (40 - 10)°

⇒ ∠LMO = 30°

Help me pleaseeeee :)

Answers

Answer:

The answer to 6^4 is 1296

Step-by-step explanation:

2x2x2x2 = 16 (you have to multiply the 2 four times because you have a little four on top of the two)

3x3x3x3 = 81 (you have to multiply the 3 four times because you have a little four on top of the three)

16x81 = 1296 (6^4 = 6x6x6x6 = 1296)

If you put $2,000 in an account at an annual simple interest rate of 5%, how long will it take your balance
to grow to $2,600? (Hint: How many years will it take to earn $600 worth of interest?)

Answers

Answer:

After investing for 10 years at 5% interest, your $2,000 investment will have grown to $3,258

Step-by-step explanation:

Your welcome

Two dice are tossed 396 times. How many times would you expect to get a sum of 3?

Answers

Using proportions, it is found that you would expect to get a sum of 3 22 times.

What is a proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

When two dice are rolled, there are 36 total outcomes. 2 of them, (1,2) and (2,1), result in a sum of 3, hence the proportion is given by:

p = 2/36 = 1/18.

Out of 396 tosses, the expected value is given by:

E = 1/18 x 396 = 22.

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What is the area of a regular hexagon with a side length of 4 m? enter your answer in the box. round only your final answer to the nearest hundredth. m²

Answers

Answer:

41.57

Step-by-step explanation:

took the test

Brainliest given easy question :)
Explanation needed.

Answers

Answer:

Side Lengths of 4,6, & 7

Side Lengths of 8,9, &4

Step-by-step explanation:

Base on the given we first must know that in order to create a triangle the following must be apply:

[1] All 3 vector have different direction

[2] sum of sizes of 2 vector must be greater than 3rd one.

Thus,

Side Lengths of 4,6, & 7

4 + 7 > 7

10 > 7

Side Lengths of 2,10,&3

2 + 3 > 10

5 <10

Side Lengths of 15, 7 , &8

7+8=15

15 = 15

Side Lengths of 1,4,&3

1+3>4

4=4

Side Lengths of 8,9,&4

8+4>9

12>9

Side Lengths of 6,7,&1

1+6=7

7=7

Hence, we can see that the only ones that are

[1] All 3 vector have different direction

[2] sum of sizes of 2 vector must be greater than 3rd one.

is

Side Lengths of 4,6, & 7

Side Lengths of 8,9, &4

[RevyBreeze]

In 2005, the population of a state was 31,006,000. If the population grows at 1. 2% per year, approximately how many years ( from 2005 ) it will take for the population to reach 40,000,000? ( assuming it grows at the same rate )

Answers

21 years mm. M. N. M

Answer:

21

Step-by-step explanation:

Trial and error into (APPROXIMATELY)

y=31,006,000(1+.012)^x

689x+47x-89 dose anyone know how to solve this?

Answers

Answer:

736x-89

Step-by-step explanation:

i think all you can do here is add the numbers that have an X in them so adding 689x+47x=736x and you leave the 89 so it becomes 736x-89

Answer:

736x-89

Step-by-step explanation:

first add the like terms (numbers with the same variables)

so now the equation is 736x-89

What expression can be used to add 3/4 + 1/6

Answers

Answer:

11 / 12 or 0.9167

Step-by-step explanation:

Given:

3/4 + 1/6

Find:

Value with expression

Computation:

"3/4 added to number 1/6"

3/4 + 1/6

By taking LCM

[9 + 2] / 12

11 / 12 or 0.9167

brainliest?

least number which is dividable by 12,15,20​

Answers

Answer:

[tex]\huge\boxed{\bf\:1}[/tex]

Step-by-step explanation:

At first, let's factorise the given three numbers.

[tex]12\\= 4 * 3*1\\= \underline {2*2*3*1}[/tex]

[tex]15\\= \underline{5*3*1}[/tex]

[tex]20\\= 4*5*1\\=\underline {2*2*5*1}[/tex]

Here, from the given factors, we can see that the three numbers (12, 15 & 20) don't have any common factors except for 1.

•°• The least numbers divisible by 12, 15 & 20 is 1.

[tex]\rule{150pt}{2pt}[/tex]

Which of the following is equivalent to 5x - 19?

A) 7(4 - 2x) + 9 (x - 1)
B) 6x - (x - 11) + 8
C) 10 - 3(x - 3) - 2x
D) -3x + 4(2x - 6) + 5

Answers

Answer:

B

Step-by-step explanation:

6-1+11 +8

5x+19

therefore the answer is 5x + 19

The expression which is equivalent to 5x - 19 is D) -3x + 4(2x - 6) + 5.

What are Expressions?

Expressions are mathematical statements which consist of two or more terms and terms are connected to each other using mathematical operators like addition, multiplication, subtraction and so on.

Given an expression,

5x - 19

We have to find the equivalent expression.

Find the value of each expression in the options.

A) 7(4 - 2x) + 9 (x - 1) = 28 - 14x + 9x - 9 = -5x + 19

B) 6x - (x - 11) + 8

= 5x + 11 + 8 = 5x + 19

C) 10 - 3(x - 3) - 2x

10 - 3x + 9 - 2x = -5x + 19

D) -3x + 4(2x - 6) + 5

-3x + 8x - 24 + 5 = 5x - 19

Hence the correct option is D.

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Urgent. There are 12 coloured counters in a bag. The counters are black, white or grey A counter is chosen at random. The probability that the counter is not black is 3/4. The probability that the counter is not white is 2/3. Work out the probability that the counter is grey.​

Answers

Answer:

1/12

Step-by-step explanation:

Needed information

[tex]\sf Probability\:of\:an\:event\:occurring = \dfrac{Number\:of\:ways\:it\:can\:occur}{Total\:number\:of\:possible\:outcomes}[/tex]

The sum of the probabilities of all outcomes must equal 1

Solution

We are told that the probability that the counter is not black is 3/4.  

As the sum of the probabilities of all outcomes must equal 1, we can work out the probability that the counter is black by subtracting 3/4 from 1:

[tex]\sf P(counter\:not\:black)=\dfrac34[/tex]

[tex]\implies \sf P(counter\:black)=1-\dfrac34=\dfrac14[/tex]

We are told that the probability that the counter is not white is 2/3.  

As the sum of the probabilities of all outcomes must equal 1, we can work out the probability that the counter is white by subtracting 2/3 from 1:

[tex]\sf P(counter\:not\:white)=\dfrac23[/tex]

[tex]\implies \sf P(counter\:white)=1-\dfrac23=\dfrac13[/tex]

We are told that there are black, white and grey counters in the bag.  We also know that the sum of the probabilities of all outcomes must equal 1.  Therefore, we can work out the probability the counter is grey by subtracting the probability the counter is black and the probability the counter is white from 1:

[tex]\begin{aligned}\sf P(counter\:grey) & = \sf1-P(counter\:black)-P(counter\:white)\\\\ & =\sf 1-\dfrac14-\dfrac13\\\\ & = \sf \dfrac{12}{12}-\dfrac{3}{12}-\dfrac{4}{12}\\\\ & = \sf \dfrac{12-3-4}{12}\\\\ & = \sf \dfrac{5}{12}\end{aligned}[/tex]

Ray HJ is the angle bisector of angle GHI. The measure of angle IHJ is 32°. What is the measure of angle GHJ?
a: 64°
b: 16°
c: 32°
d: 0.5°

Answers

Answer:

c) 32°

Step-by-step explanation:

The bisector of an angle is the line or line segment that divides the angle into two equal parts.  So Ray HJ divides ∠GHI into 2 equal parts.

Therefore, ∠GHJ = ∠IHJ

As we are told that ∠IHJ = 32° then ∠GHJ = 32°

To make a quiche, you need 1 tablespoon of butter for every 6 eggs. Write a ratio that compares these two quantities. Which ratios are equivalent to this ratio? Check all that apply.
12 eggs Over 2 tablespoons
15 eggs Over 3 tablespoons
24 eggs Over 4 tablespoons
9 eggs Over 1.5 tablespoons

Answers

Answer:

12 eggs over 2 tablespoons, 24 eggs over 4 tablespoons, and 9 eggs over 1.5 tablespoons

Step-by-step explanation:

1 tablespoon of butter for every 6 eggs makes the ratio 6:1

Now let's make the ratio for all of them:

12:2

15:3

24:4

9:1.5

We can simplify them

6:1

5:1

6:1

6:1

There is your answer,

1) 12 eggs Over 2 tablespoons

2) 15 eggs Over 3 tablespoons

3) 9 eggs Over 1.5 tablespoons

Hope it helped :)

PLEASE HELP ME! 100 POINTS and BRAINLIEST!

Consider this dilation.

Hint: Remember the notation for the original figure and the figure after it has undergone transformation.


(a) Is the image of the dilation a reduction or an enlargement of the original figure? Explain.


(b) What is the scale factor? Explain and show your work.

Answers

Answer:

(a) Reduction

(b) scale factor = 1/2

Step-by-step explanation:

(a)  A reduction is a dilation that creates a smaller image.  

As A'B'C'D' is smaller than ABCD, image A'B'C'D' is a reduction of image ABCD.

(b)  To find the scale factor:

find the center of dilation by connecting the corresponding points from the original and dilated image and finding where these lines intersect (see attached image)measure from the center of dilation to a point on the original image.measure from the center of dilation to the corresponding point on the dilated image.Divide the distance to the dilated image by the distance to the original image.

center of dilation = (0, 0)

(0, 0) to point C = 4 units

(0, 0) to point C' = 2 units

⇒ scale factor = 2/4 = 1/2

HELPPPPPP MEEE PLSSS

Answers

Answer:
208

Step-by-step explanation:

the formula is:

2*(width*lenght+height*lenght+height*width)

2*(6*8+4*8+4*6)

208

Hey ! there

Answer:

208

Step-by-step explanation:

In this question we are provided a net of cuboid with ,

Length = 8 m

Width = 6 m

Height = 4 m

And we are asking to find the surface area of the figure ( cuboid ) . We know that ,

[tex] \quad\underline{ \boxed{\sf{Surface \: Area_{(Cuboid)} = 2 ( lw + wh + hl )}}}[/tex]

Where ,

l refers to length

w refers to width

h refers to height

Solution : -

[tex] \longmapsto \qquad \: 2((8 \times 6) + (6 \times 4) + (4 \times 8))[/tex]

[tex] \longmapsto \qquad \: 2(48 + 24 + 32)[/tex]

[tex] \longmapsto \qquad \: 2(48 + 56)[/tex]

[tex] \longmapsto \qquad \:2(104)[/tex]

[tex] \longmapsto \qquad \: \blue{\underline{\boxed{\frak{208 \: m {}^{2} }}}} \quad\bigstar[/tex]

Therefore , surface area of cuboid is 208 square metres .

#Keep Learning

What is the area of the triangle figure?

Answers

The area of the triangle is equal to 12 mm².

Area of triangle

The area of a triangle is given by the formula:[tex]A=\frac{bh}{2}[/tex], where:

 b= length of the base;

  h=height

STEP 1 - Find the dimensions for the base and the height of the triangle.

From the figure, it is possible to see that h= base of rectangle - 4 mm. Then, the height of the triangle(h)= 10-4=6 mm.

You can see that the sum of the base of the triangle with the height of the rectangle is equal to 12 mm. The figure also shows that the height of this rectangle is equal to 8 mm. Thus, the  base of the triangle(h)= 12-8=4 mm.

STEP 2 - Find the area of the triangle.

From step 1:

    b= length of the base= 4

    h=height=6

Therefore, the area of the triangle - [tex]A=\frac{bh}{2}=\frac{4 * 6}{2}=\frac{24}{2} =12 mm^2[/tex].

Learn more about the area of compound shapes here:

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GIVING BRAINLIEST TO THE PERSON THAT CAN EXPLAIN THIS THE BEST (:

Answers

Answer:

30 inches

Step-by-step explanation:

In equilateral triangle all sides are equal. One side of the triangle EB is also the  side of a square.

So, all the sides of the square is 6 inches

Perimeter = sum of all sides

                  = AB  + BC + CD + DE + EA

                  = 6 + 6 + 6 + 6 + 6

                  = 5*6

                   = 30 inches

Answer:

Here,

length of the square BCDE(l)= 6 inches

Also,

length of the equilateral triangle ABE(l)=6 inches

Lastly, Perimeter of figure ABCDE= 5*6

=30 inches

or,Perimeter of the figure ABCDE also=

AB+BC+CD+DE+EA

=6+6+6+6+6

=30inches

Step-by-step explanation:

We know,

length DC of the square BCDE(l)=6inches

So,

DC=BC=BE=DE (All sides of a square are equal)

Again,

length BE of the equilateral triangle ABE=6inches

So,

BE=AB=AE (All sides of a equilateral triangle are equal)

Therefore, Perimeter of figure ABCDE=

AB+BC+CD+DE+EA or, 5*6

(perimeter means to sum all the outer sides a given polygon, in this case it's a Pentagon)

Please read cautiouly with patience

Number 8 helpppppp math

Answers

The answer is 54

===============

You can see the other angle is 36 degree and q is a right angle (90 degree). You subtract the 90 by 36 which gives you 54.

===============

90 - 36
= 54 degree

If sin x= 24/25 and cos x=7/25, what does tan x equal? What is the simplified fraction

Answers

Answer:

24/7 = 3 3/7

Step-by-step explanation:

Always remember the formula:

tan x = (sin x)/(cos x)

[tex]tan \: x = \frac{sin \: x}{cos \: x} \\ = \frac{ \frac{24}{25} }{ \frac{7}{25} } \\ = \frac{24}{7} [/tex]

Learning Task 2

You are given the different weights (in kg) of lanzones by kaing. Complete the Stem-and-Leaf Display to organize the following data set.​

Answers

The stem-and-leaf plot for the given different wieghts (in kg) is displayed in the image attached below.

What is a Stem-and-Leaf Plot?

A stem-and-leaf plot is a graphical tool used to display data points, in such a way that, if 26, 27, and 28 are data points, 2 will be the stem in a row and along with 6, 7, 8 as the leaf.

Given the data points, 16, 15, 23, 24, 13, 21, 15, 26, 22, 24, 30, 24, 10, 17, 19, 17, 28, 31, 29, 14, the stem-and-leaf plot is displayed in the image attached below (see attachment).

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Given circle O with diameter AB find x

Answers

A circle is a curve sketched out by a point moving in a plane. The measure of x is 60°.

What is a circle?

A circle is a curve sketched out by a point moving in a plane so that its distance from a given point is constant; alternatively, it is the shape formed by all points in a plane that are at a set distance from a given point, the centre.

Given that the measure of the arc AC is 120°. Now, as we know, the diameter divides the circle into two equal chords of 180° each. Therefore, the measure of x can be written as,

[tex]x = {\rm arcAB-arc AC}\\\\x = 180^o-120^o\\\\x = 60^o[/tex]

Hence, the measure of x is 60°.

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14. Which of the following equations is equivalent to = 3/5=12/x-2
36 = 5x - 10
3x - 2 = 60
15 = 12x - 24
3x - 6 = 60

Answers

Answer:

3x - 6 = 60

Step-by-step explanation:

[tex]\frac{3}{5} =\frac{12}{x-2}[/tex]
5*12 = 3*(x-2)
60 = 3x - 6

How many solutions exist for the given equation? 3x 13 = 3(x 6) 1 zero one two infinitely many

Answers

An equation is formed of two equal expressions. There is no solution set of the equation 3x+13 = 3(x+6)+1.

What is an equation?

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

The equation can be solved in the following manner,

[tex]3x+13 = 3(x+6)+1\\3x+13=3x+18+1\\3x+13=3x+19[/tex]

Since both the sides of the equation are the same in terms of variable and the constant terms are not the same. Therefore, there is no solution set of the equation 3x+13 = 3(x+6)+1.

Learn more about Equation:

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Answer: ZERO

Step-by-step explanation:

Light travels at approximately 2.998 x 10^5km/s (correct to 4 significant figures. The distance
between the Sun and the Earth is 1.495 X 10^8 km. How long would it take for light to travel from
the Sun to the Earth? Give your answer in scientific notation correct to 3 significant figures.

Answers

Answer:

498.66577718478985990660440293529019346230820547031354236157438292 seconds

Step-by-step explanation:

A bag has 16 marbles in it: 6 red, 4 blue, 3 yellow, and 3 green. A marble is drawn and not put back,
and then another marble is drawn. What is the probability that a blue marble was drawn followed by a
yellow marble?

Answers

The probability that a blue marble was drawn followed by a yellow marble is; 0.45.

Probability without replacement

According to the task content;

It follows that the marbles were drawn without replacement.

On this note , the probability that a blue marble and yellow marble were drawn respectively is;

P(B&Y) = 4/16 + 3/15

P(B&Y) = 0.45.

Read more on probability;

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