Question 17 *
There are 24 girls in a class. The ratio of girls to boys is 3 : 8.
How many boys are in the class?​

Answers

Answer 1
There are 64 boys in the class because 24/3=8 and you have to do the same thing so 8 times 8= 64

Related Questions

Find x

A: 11.2
B: 13.1
C: 9.2
D: 22.9

Answers

Hi there!

[tex] \large{tan35\degree = \frac{x}{16} }[/tex]

We can also use the other angle but I will focus on 35°.

The reason why we use the equation above because tan is equivalent to opposite/adjacent

From the picture, the opposite is x-term while the adjacent is 16 if we focus angle 35°.

Define theta = 35°. Thus, the equation would be tan35° = x/16.

Solving the equation, you might want to bring open Trigonometric Table or a calculator to calculate tan35°. You should get 0.7 (rounded)

[tex] \large{0.7 = \frac{x}{16} }[/tex]

Then solve the equation for x-term.

[tex] \large{0.7 \times 16 = x} \\ \large{x = 11.2}[/tex]

Hence, the value of x is 11.2

Answer

11.2

Questions about the problem be asked through comment.

Furthermore, you can also use the other angle. If we use 55° instead, the equation would be tan55° = 16/x. The outcome would be the same.

Hope this helps, and Happy Learning! :)

select all the expressions that are equal to
8(x-24)

Answers

Answer:

Your answer will be the 1st, 3rd and 4th/[tex]8(x-3), 9(x-3)-(x-3), and (5+3)x-24[/tex]

Step-by-step explanation:

No explanation since I've had this in the past, but I am 100% sure that it is A, C, and D. Therefore, your answer will be [tex]8(x-3), 9(x-3)-(x-3), and (5+3)x-24[/tex].

Find the length of the slide board. Round your answer to the nearest tenth place.​

Answers

Answer:

22.8

Step-by-step explanation:

(18²+14²)½

= 22.8

between which two consecutive numbers does the square root below lie ?
[tex] - \sqrt{128} [/tex]

Answers

Answer:

where is the second one?

Step-by-step explanation:

Choose the product of (3x2 + 7)(6x2 – 4x + 5).

A. 63x2 – 28x + 35
B. 9x4 – 7x3 + 51x2 – 11x + 12
C. 18x4 – 12x3 + 42x2 – 28x + 35
D. 18x4 – 12x3 + 57x2 – 28x + 35

Answers

The answer is D
------------------------
ps, have a great day! ^^

The school has two separate buildings, one is shaped
like a triangle and the other a rhombus. The base of
the triangle is 100 meters and the height is 150
meters, what is the area? The rhombus is a kite shape
with one diagonal 50 meters and the other 40 meters,
what is the area?

Answers

Answer:

250 = triangle

90 = rhombus

(i think, its all i know)

Step-by-step explanation:

just use 1/2 x b x h for triangles

and A = l x w for rectangles

Which expression is equivalent to the following?
[tex]sin^4(x)-cos^4(x)[/tex]

This is basically calculus......

Answers

Step-by-step explanation:

[tex]\sin^{4}x \: - \cos^{4} x = (\sin^{2}x)^{2} - (\cos^{2}x)^{2} [/tex]

[tex] = (\sin^{2}x)^{2} - (1 - \sin^{2}x)^{2} [/tex]

[tex] = \sin^{4}x - (1 - 2\sin^{2}x + \sin^{4}x)[/tex]

[tex] = 2\sin^{2}x - 1[/tex]

[tex] = - \cos2x[/tex]

Note: I used the identity

[tex] { \sin }^{2} x = \frac{1}{2} (1 - \cos \: 2x)[/tex]

for the last step.

PS. I love proving trigonometric identities!

What is the median of this data set?

{3, 5, 7, 8, 8, 9, 10, 10, 10, 11, 12, 15}

Answers

Answer:

Hi, there your answer is 9.5

Median=10

9 + 10 = 19

19 ÷ 2 = 9.5

Step-by-step explanation:

Sorry my bad I forgot to add and divide

Answer:

The median would be 9.5

Step-by-step explanation:

To find our answer we will first put them in numerical order:

3, 5, 7, 8, 8, 9, 10, 10, 10, 11, 12, 15

Now that we have the numbers in order, we will find the middle numbers.  Since the middle numbers are 9 and 10, we will add them both and divide them by 2.

9 + 10 = 19

19 ÷ 2 = 9.5

Therefore 9.5 is our answer!

The question was not clear for me! Help :(

Answers

Answer:

0.1 , 0.2 , 0.05

Step-by-step explanation:

*each column adds to 1*

20 x 1/2 = 10

1/2 x 20 x 0.1 = 1

top left box = 0.1

; 5 x 2 x 0.1 = 1

1/2 x 10 = 5

; 0.2 x 1/2 x 10 = 1

bottom middle box = 0.2

; 5 x 1 x 0.2 = 1

; 2 x 10 x 0.05 = 1

middle right box  = 0.05

; 20 x 1 x 0.05

1.
Tom has a badge collection. He buys more so that his collection increases by 35%.
He originally had 20 badges. How many badges does he
have now?

7%

Answers

Tom has 27badge
Explanation
100%+25%=135%
135/100 X 20 =27

ill give brainliest to the correct answer

Answers

Answer:

312 inches

Step-by-step explanation:

Surface Area = 2×(8×12 + 8×3 + 12×3) = 312 inches

Answer:

312

Step-by-step explanation:

(12x3)x2=72

(12x8)x2=192

(8x3)x2=48

72+192+48=312

The control limits, calculated as three standard deviations from the sample mean, imply that _________ of the sample points are expected to fall between the upper and lower control limits.

Answers

Answer: 99.7%

Step-by-step explanation:

A control chart is used in the identification of the assigned causes of variation for a process. The control limits are refered to as the horizontal lines that are below and above the center line which are used in judging whether a particular process is out of control.

In this case, the control limits, which is calculated as three standard deviations from the sample mean, simply means that about 99.7% of the sample points will be expected to fall between upper and lower control limits.

what is the area of a triangle with base 18cm and height 4cm

Answers

Answer: The area of the triangle would be “36cm^2”

Explanation: To find the area of a triangle you multiply the height and base and divide it by 2 so it would look like this 18 x 4 = 72 then 72/2 which is 36cm^2.

Have a nice day!

Answer:

Area=36

Step-by-step explanation:

18x4=72

72/2=36

beth walks 8 miles in 120 minutes. assume beth maintains a constant speed. what is the number of miles beth walked in one hour? i need helppp!!

Answers

Answer:

1 mile in 15 minutes

Step-by-step explanation:

Simply divide 120  by 8

120/8=15

Connie is 4 years younger than Max. Max is twice as old as Tom. If Tom is t years old, how old is Connie in terms of t?

Answers

Answer:

8t

Step-by-step explanation:

c = 4m

m = 2t

c = 4(2t) = 8t

Answer:

2t-4

Step-by-step explanation:

Tom: t.

Max is twice as old as Tom - 2t.

Connie is 4 years younger than Max - 2t-4.

So, Connie is 2t-4 years.

Please mark me as brainliest if you like the answer! :)

Solve for the missing side to the tenths place ( ignore the letters labeled on the triangle, they are labeling the angles not the sides)

c=

Answers

C=12.6
Using pythagorus theorem.

Answer:

120 broAB ayi dónde es 120 desde A asta B

The elevation at ground level is 0 feet. An elevator starts 90 feet below ground level. After traveling for 15 seconds, the elevator is 20 feet below ground level. Did the elevator travel up or down? What was the speed (in ft per second) of the elevator in the 15 second interval?

This is due at 8am tomorrow please help me

Answers

The answer is -4 2/3

Explanation : The elevator is at 0, and went below ground level 90 feet, that would be -90, then it went up 20 feet, which would be -90 + 20 = -70

-70 ft / 15sec = - 4 2/3

I am not sure about the ground level and negative difference but that it is what I was taught. Below ground level is negative and above is positive. Therefore the elevator traveled up and it traveled -4 2/3 per second.
It so either 4 2/3 or - 4 2/3 but pretty sure it is - 4 2/3.

:)))

can anyone help me ?

Answers

Answer:

d

Step-by-step explanation:

The sum of the angles of a triangle is ALWAYS 180 degrees.

The answer is D because the sum of the angle s of a triangle is always 180 degrees

SOMEONE!!!

QUESTION: What is the measure of each angle in a regular polygon with 6 sides?

Answers

Answer:

polygon do all the number times each outher divided in half then times 6 for the hight and langht

Step-by-step explanation:

what is the angle from x​

Answers

Answer:

133° because vertically opposite angles are equal!

Hope this helped!

An aquarium is 8 feet long, 5 feet wide, and 3.4 feet deep. What is the volume of the tank?

Answers

Answer:8x5x3.4= 132 feet squared

Step-by-step explanation:

when did the united states get it independence​

Answers

Answer:

4th July 1776

Step-by-step explanation:

4th July is marked as independence day

In 1776 ...................

The type of book that the students at a middle school prefer to read is shown in the table. Type of Book Number of Students Mystery 45% Science-fiction 35% Non-fiction 5% Fantasy 15% Tanner wants to make a circle graph of the data. How many degrees would be used for the section representing the students who prefer to read fantasy books?
A 15°
B. 27°
C. 45°
D. 54°
E 75°​

Answers

The answer is 54. Let me know if you need an explanation

A train travels a distance of 120 km at a constant speed of V kmh 1. If the speed
is reduced by 10kmh), then the time taken to the journey is increased by one
hour. Find the constant speed V of train.


Help me please

Answers

Answer:

V = 40 km/h

Step-by-step explanation:

Total distance = 120 km

Constant speed of train = V km/h

⇒ [tex]Time \: taken \: by \: train = \frac{Distance}{Speed} = \frac{120}{V} \: hr[/tex]

Its given that if speed is reduced by 10 km/h , the time taken by train increases by 1 hour. BUT THE DISTANCE REMAINS SAME. So,

[tex]Speed \times Time = Distance[/tex]

[tex]=> (V - 10)(\frac{120}{V} + 1) = 120[/tex]

[tex]=> 120 + V - \frac{1200}{V} - 10 = 120[/tex]

[tex]=> V - \frac{1200}{V} - 10 = 0[/tex]

[tex]=> \frac{V^2 - 1200 - 10V}{V} = 0[/tex]

[tex]=> V^2 - 10V - 1200 = 0[/tex]

Factorise the quadratic equation.

[tex]=> V^2 - 40V + 30V - 1200[/tex]

[tex]=> V(V - 40) + 30(V - 40)[/tex]

[tex]=> (V - 40)(V + 30)[/tex]

[tex]=> V = 40 \: (or) \: -30[/tex]

Speed can't be negative. So , V = 40 km/h

Find the Missing Angle!!!!

Answers

it would be 80 degrees

please help i will give an extra 40 if you do

Answers

umm i did a problem like this and i just add

Answer:

area of the right triangle=1/2×7×5

=17.5 square feet

Pls hurry


Rafael writes an expression to represent "a number, n, decreased by thirty-one." Then he evaluates that expression if
n-29. Which statements are true about the expression and its evaluation? Check all that apply.
The correct expression is 31-n.
This is a subtraction expression.
This is an addition expression.
To evaluate, substitute 29 for the variable in the expression.
To evaluate, substitute 31 for the variable in the equation.
To evaluate the expression, add 31 to 29.
The correct expression is n-31.
To evaluate the expression, subtract 31 from 29.

Answers

Step-by-step explanation:

To evaluate, substitute 29 for the variable in the expression.

To evaluate, substitute 31 for the variable in the equation.

To evaluate the expression, add 31 to 29.

The correct expression is n-31.

To evaluate the expression, subtract 31 from 29Pls hurry

Rafael writes an expression to represent "a number, n, decreased by thirty-one." Then he evaluates that expression if

n-29. Which statements are true about the expression and its evaluation? Check all that apply.

The correct expression is 31-n.

This is a subtraction expression.

This is an addition expression.

To evaluate, substitute 29 for the variable in the expression.

To evaluate, substitute 31 for the variable in the equation.

To evaluate the expression, add 31 to 29.

The correct expression is n-31.

To evaluate the expression, subtract 31 from 29..

students who buy tickets at a local movie theater receive a 10% discount on the price of a ticket. what is the total price for the 4 students tickets if the regular cost per ticket is $6.00.

options- $21.60, $26.40, $6.60, or $5.40

Answers

Answer:

$21.60

Step-by-step explanation:

Answer:

Answer is $ 21. 60

Step-by-step explanation:

$22 or 21.60 in decimal form

Step-by-step explanation: $6.00 - 10% is 5.4

5.4 + 5.4 +5.4+5.4 is 21.60

you can also round this off and get the answer as $ 22 .

Hope this answer helps you :)

Have a great day

Mark brainliest

According to the graph, what is the value of the constant in the equation below?
Height= Constant/Width
(4,5) (5,4) (10,2) (20,1)
A. 1
B. 10
C. 5
D. 20

Answers

Answer:

20

Step-by-step explanation:

AP EX Confirmed

Given the vertices of M(1, 5) A(-1, 2), T(1, -1) H(3, 2), prove that MATH is a rhombus.​

Answers

Step-by-step explanation:

i have solved the question

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