The ratio of left-handed students to right-handed students in Mr. Johnson's first period class is 2: 3. If there are 30 students in this class, how many are left-handed?

Answers

Answer 1
12 students are left handed.

i hope this helps!:)
Answer 2

Answer:

12 left-handed students

Step-by-step explanation:

The ratio 2:3 indicates 2 left-handed students for every 3 right-handed students.  This means 2 left-handed students are expected for every 5 total students.  You can use this information and set up and solve the proportion 2/5 = x/30


Related Questions

PLEASE HELP FAST

The Pythagorean theorem states that a² + b² = c² for a right triangle with leg lengths, a and b, and hypotenuse length, c.

The hypotenuse of a right triangle is 5 units long and has the points (3, 0) and (0, 4) as end points. One of the legs has length 3.

Use the Point and Segment tools to draw a right triangle at demonstrates the other leg length is 4.

Answers

Answer:

Uh how to use segmant tool

Step-by-step explanation:

not there

Write an exponential equation of a function that passes through the
points (0,4) and (2,64).

Answers

Y +Y1 = M (x + x1)
Y + 4 = M (X+ 0)
Y+4= Mx + 0
-4. -4
Y = Mx + 4
64=ab²4=ab⁰

Divide both systems:

16=b²4=b

a(b)²=64a=64/16=4

y=4(4)^x

y=4^x+1

4。
7.28
-4.9_
Find the difference

Answers

Answer: 119/50 in decimal form 2.38000

Step-by-step explanation: 4.9 can be made to 49/10

 Find the Least Common Multiple

     The left denominator is :       25  

     The right denominator is :       10

Least Common Multiple:

     50

Zendaya needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 4.25 hours and charged her $59 for parts. The total was $377.75. What was the cost of labor, per hour?

Answers

This is oddly the funniest question I've seen so far. But never fear, I guess I'm here? :\

Honestly, I'm kinda lost but your answer should be $88.88. Even though it would say $88.88 multiplied by total hours, which is 4 hours and 25 minutes is $377.74, that answer is determined by a thousandth of a number. If you want it the other way, it's 88.8824.

Definitely hope this helped. [Pretty much, the answer is $88.88.]

The cost of labor per hour is $75.

It is required to find the cost of labor per hour.

What is arithmetic?

Arithmetic is the branch of mathematics that deals with the study of numbers using various operations on them. Basic operations of math are addition, subtraction, multiplication and division. These operations are denoted by the given symbols.

Given:

The total amount that the technician charged her is the sum of the cost for the total hours worked and the costs of the parts.

Total charge = cost of total hours worked + cost of parts

$377.75 = $59 +  cost of total hours worked

Cost of total hours worked = $377.75 - $59

Cost of total hours worked = $318.75

In order to determine the cost per hour of labor, divide the total cost of total hours worked by the hours worked.

$318.75 / 4.25 = $75.

Therefore, the cost of labor per hour is $75.

Learn more details about arithmetic here:

https://brainly.com/question/11559160

#SPJ2

The variables y and x have a proportiurial relationship, and y = 28 when x = 21.
What is the value of x when y = 42?

x= 14
x = 18 2/3
x= 31 1/2
x=56

Answers

Answer:

x = 31 1/2

Step-by-step explanation:

If y = 42, that means the original y = 28 was multiplied by 1.5, so we have to multiply x = 21 by 1.5 to find the answer.

21 * 1.5 = 31.5 A.K.A 31 1/2

Simone wrote that 2+5.8=6.

Use the drop-down menus to explain why 6 is incorrect.



2+5.8 cannot be 6 because 2+5.8 is

Six is a correct sum to the expression +5.8, not 2+5.8.

Answers

1+5.8= 6.8
0.2+5.8=6

Answer: The correct equation should be 0.2+5.8=6

Step-by-step explanation: First of all let's look at the equation without the decimal ".8". So, it would be 2+5 which equals 7. Since the sum is greater, adding a decimal will make the sum larger than 6. 2+5.8=7.8, therefore the correct equation being 0.2+5.8=6. Hopes this makes sense and helps!

All of the following are equivalent to 8/10 except _____16/20 , 4/5, 5/6, 40/50.

Answers

Answer:

5/6

Step-by-step explanation:

Answer:

5/6

Step-by-step explanation:

All of the answers either increase or reduce to 8/10 except 5/6

Hope this helps! Please mark as brainliest answer if correct.

Stay safe, God bless, and happy studying!

Jude is arranging for a party to be held in the students' union. The use
of the hall will be free but security costs of £300 will have to be met.
The cost of the main band will be £2,500 and the supporting band will
cost £500. Tickets will be priced at £16 each. On arrival, every ticket
holder will be given a bottle of water, worth £1 per bottle. If Jude sells
400 tickets as he anticipates, what profit will he make?
19:08

Answers

The profit that Jude made during the party was £3700.

What is profit?

Profit is the difference between revenue and cost. It is given by:

Profit = Revenue - Cost

From the question:

The total cost = 300 + 2500 + 500 + (1 * 400 people) = £3700

Revenue = 400 ticket * £16 = £6400

Profit = Revenue - Cost = £6400 - £3700

The profit that Jude made during the party was £3700.

Find out more on profit at: https://brainly.com/question/23103804

angle 1 is supplementary to angle 2
angle 2is supplementary to angle 3
angle 1 and angle 3 are

Answers

9514 1404 393

Answer:

  congruent

Step-by-step explanation:

Angles supplementary to the same angle are congruent.

__

Here, angles 1 and 3 are both supplementary to angle 2, so ...

  angle 1 and angle 3 are congruent

Lines M and N are parallel. Name the relationship between ∠a and ∠b.

Answers

Answer:

alternate angled

Step-by-step explanation:

add up to 180

Help yalll a b d or c

Answers

Answer:

persent i think

Step-by-step explanation:

true or false - Agriculture and trade influenced the growth of civilization in ancient Egypt.
True
False

Answers

Answer:

The answer is True.

Step-by-step explanation:

The earliest civilizations developed between 4000 and 3000 BCE, when the rise of agriculture and trade allowed people to have surplus food and economic stability.

Hope this helps you!

NO LINKS!! Please help me​

Answers

Answer:

A

Step-by-step explanation:

Since cosine is positive and sine is negative that puts θ in Quad IV.

From right triangles we know:

Cos θ = adjacent/hypotenuse = 5/13

sin θ = opposite/hypotenuse = ?/13

To find the opposite side across from θ use the pythagorean theorem.

5² + y² = 13²

25 + y² = 169

y² = 144

y = 12

we are given  that sin is < 0 so sinθ = -12/13

Answer:

A

Step-by-step explanation:

[tex]\cos(\theta)=\dfrac{\textsf{adjacent side}}{\textsf{hypotenuse}}=\dfrac{5}{13}[/tex]

[tex]\textsf{As }\cos(\theta) > 0 \textsf{ the angle is in quadrant I or IV}[/tex]

Using Pythagoras' Theorem a² + b² = c² to find the side opposite the angle:

⇒ 5² + b² = 13²

⇒ b² = 144

⇒ b = 12

⇒ opposite side = 12

[tex]\implies \sin(\theta)=\dfrac{\textsf{opposite side}}{\textsf{hypotenuse}}=\dfrac{12}{13}[/tex]

[tex]\textsf{As }\sin(\theta) < 0 \textsf{ then }\sin(\theta)=-\dfrac{12}{13} \textsf{ and the angle is in either quadrant III or quadrant IV}[/tex]

Therefore, the common quadrant is quadrant IV and

[tex]\sin(\theta)=-\dfrac{12}{13}[/tex]

Solve for m:
m/4.2 =7

please show me the steps

Answers

[tex]\frac{m}{4.2} =7\\m = 4.2 * 7 = 29.4[/tex]

Hope that helps!

Answer:

m = 29.4

Step-by-step explanation:

[tex]\frac{m}{4.2}=7[/tex]

[tex]\mathrm{Multiply\:both\:sides\:by\:}4.2[/tex]

[tex]\frac{4.2m}{4.2}=7\cdot \:4.2[/tex]

[tex]\mathrm{Simplify}[/tex]

[tex]m=29.4[/tex]

Check Answer;

[tex]\frac{29.4}{4.2}[/tex]

[tex]\mathrm{Multiply\:the\:numerator\:and\:denominator\:by:}\:10[/tex]

[tex]\frac{294}{42}[/tex]

[tex]\mathrm{Write\:the\:problem\:in\:long\:division\:format}[/tex]

[tex]42\overline{|\smallspace294}[/tex]

[tex]\begin{matrix}\:\:\:\:\:\:\:\:\:\:\emptyspace7\:\:\:\:\:\:\:\:\:\:\:\:\\ 42\overline{|\smallspace294}\:\:\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\underline{\emptyspace2\emptyspace9\emptyspace4}\:\:\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\:\:\:\:\emptyspace0\:\:\:\:\:\:\:\:\:\:\:\:\end{matrix}[/tex]

Hence, m = 29.4

~learn with Lenvy~

Mr Green gave each of the 12 students in his math group 14 cubes.What is the total number of cubes that Mr.Green gave to his math group?use area model to show how you found the answer​

Answers

Answer:

Step-by-step explanation:

Y-2 = 7(X-4), what form of an equation is this?
Is this in correct standard form? Why or Why not

Answers

9514 1404 393

Answer:

point-slope formno -- not in standard form

Step-by-step explanation:

The point-slope form of the equation for a line with slope m through point (h, k) is ...

  y -k = m(x -h)

Comparing this to the equation you have, you see that you have a "point-slope form" equation with m=7 and (h, k) = (4, 2).

__

The standard form of an equation for a line is ...

  ax +by = c

where a, b, c are mutually prime integers and a > 0.

Putting your equation into standard form would make it look like ...

  7x - y = 26

Your equation is not in correct standard form.

_____

see https://brainly.com/question/18537811 for more information

The circumference of the yellow circle is about for 2.5

Answers

What are you asking to solve?

Answer:

what are you trying to solve?

Here are scores for two softball teams for seven innings. Rosie's Riveters beat The Susan Bees by how many runs?

Answers

Answer:

3

Step-by-step explanation:

Which of the following shapes contain perpendicular line segments?

Answers

Answer:

y

Step-by-step explanation:

I know because I am smart

Answer:

The answer is Y

Step-by-step explanation:

A square is a perpendicular line segment

Can someone help me with this question please!!!!!

Answers

Solution:

We know that:

Interior angles of a triangle sum up to 180°.[tex]3a + 7u + 9 = 180\°[/tex]

This means that:

[tex](7u + 9) + (2a - 3) + 32 = 3a + 7u + 9[/tex]

Let's simplify the equation to find a.

Step-by step calculations:

Open the brackets:

[tex](7u + 9) + (2a - 3) + 32 = 3a + 7u + 9[/tex][tex]7u + 9 + 2a - 3 + 32 = 3a + 7u + 9[/tex]

Cancel same terms on both sides:

[tex]7u + 9 + 2a - 3 + 32 = 3a + 7u + 9[/tex][tex]2a - 3 + 32 = 3a[/tex]

Simplify the LHS:

[tex]2a + 29 = 3a[/tex]

Subtract 2a both sides:

[tex]2a - 2a + 29 = 3a - 2a[/tex]=> [tex]29 = 3a - 2a[/tex]

Simplify the RHS and change the sides:

=> [tex]\bold{a = 29}[/tex]

Let's substitute the value of a in 3a + 7u + 9 = 180° to find u.

[tex]3a + 7u + 9 = 180\°[/tex]=> [tex]3(29) + 7u + 9 = 180\°[/tex]

Simplify the LHS:

=> [tex]87 + 9 + 7u = 180[/tex]=> [tex]96 + 7u = 180[/tex]

Subtract 96 both sides:

=> [tex]96 - 96 + 7u = 180 - 96[/tex]=> [tex]7u = 84[/tex]

Divide 7 both sides:

=> [tex]\frac{7u}{7} = \frac{84}{7}[/tex]=> [tex]\bold{u = 12}[/tex]

Okie help help math math math

Answers

Answer:

[tex]\displaystyle y = -3x + 9[/tex]

Step-by-step explanation:

First, find the rate of change of the line:

[tex]\displaystyle \frac{-y_1 + y_2}{-x_1 + x_2} = m \\ \\ \frac{-6 + 3}{-1 + 2} = m \hookrightarrow \frac{-3}{1} = m \\ \\ \boxed{-3 = m}[/tex]

_______________________________________________

Now plug all the information into the Slope-Intercept Formula. It does not matter which ordered pair is chosen:

[tex]\displaystyle 3 = -3[2] + b \hookrightarrow 3 = -6 + b; 9 = b \\ \\ \boxed{\boxed{y = -3x + 9}} \\ \\ OR \\ \\ 6 = -3[1] + b \hookrightarrow 6 = -3 + b; 9 = b \\ \\ \boxed{\boxed{y = -3x + 9}}[/tex]

I am joyous to assist you at any time.

Joyce paid $110.00 for an item at the store that was 50 percent off the original price. What was the original price?

Answers

Answer:

The orginal price for the item was $220.0

Answer:

240

Step-by-step explanation:

3x≤ -6. Graph the solution.

Answers

Answer:

x less than or equal to -2

Help please thanks in advance

Answers

You didn’t put any question or picture here its useless

solve the following
a)n^2-n=0
b) 9q^2 -1 =0
c)(n-1)^2=16
kindly help me with this

Answers

i tried to solve it, not sure if it’s right but i hope it helps!

A: n= 1 / n=0

B: q= 1/3

C: n=5

<3

Write a sine function that has a midline of 5, an amplitude of 3 and a period of 5/4

Answers

Answer:

[tex]\displaystyle y = 3sin\:1\frac{3}{5}\pi{x} + 5[/tex]

Step-by-step explanation:

[tex]\displaystyle \boxed{y = 3cos\:(1\frac{3}{5}\pi{x} - \frac{\pi}{2}) + 5} \\ \\ y = Acos(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 5 \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \hookrightarrow \boxed{\frac{5}{16}} \hookrightarrow \frac{\frac{\pi}{2}}{1\frac{3}{5}\pi} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{1\frac{1}{4}} \hookrightarrow \frac{2}{1\frac{3}{5}\pi}\pi \\ Amplitude \hookrightarrow 3[/tex]

OR

[tex]\displaystyle y = Asin(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 0 \\ Horisontal\:[Phase]\:Shift \hookrightarrow 0 \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{1\frac{1}{4}} \hookrightarrow \frac{2}{1\frac{3}{5}\pi}\pi \\ Amplitude \hookrightarrow 3[/tex]

From the above information, you should now have an ideya of how to interpret trigonometric equations like this.

I am delighted to assist you at any time.

How to find imaginary and real zeros the function has

Answers

A imaginary zero is a place holder
Ex:8(00)
And a real zero is mainly a the number before 1

Which graph represents a line with a slope of and a y-intercept equal to that of the line y = x – 2?

Answers

Answer:

The last graph at the bottom.

Step-by-step explanation:

Answer:

the very last one btw.

Step-by-step explanation:

To put a fraction in simplest form, what do you do to the numerator and
denominator?
add the same
number to both
divide both by the
same number
subtract both by
same number
multiply both by
the same number
HELP FAST PLS

Answers

Answer:

It's multiply both by thesame number

Step-by-step explanation:

For example:

If we want to change this fraction to a simplest form:

5/25

We simply multiply both sides by 5,which will give us:

5/5

And if you want simplify it further, the answer will be 1

Thanks.

18x² +15x-12 factor​

Answers

GCF is first so
3(6x^2+5x-4)
Do the X method
-24 (top of the X)
5 (bottom of X)
-3 (right side of X)
5 (left side of X)
6x^2-3x+5x-4
Take the first 2 numbers and solve
6x^2-3x
3x(2x-1)
And then take the next 2 numbers
5x+4 you cant do anything here so it stays the same
Just add them all together and you get ur answer
Other Questions
Help me please!!!!!! it is the quality of sound of an instrumenta.fine b.rondo c.timbre d.musical form HELP PLEASE!Which of the following is NOT an example ofwhen people talk about taking out a loan?A. Borrowing money from a bank to buy a car.B. Getting a five year loan to purchase a car.C. Any kind of bill that is paid in full each month.D. Borrowing money and agreeing to pay back a little each month. ASAP!!! GOD BLESS!! MUCH lOVE Describe the atomic theory of atoms. How does this help us understand differences in thethree states of matter? (4 pts) Tina used two examples to represent two different states of matter.Example 1: People seated in a packed auditoriumExample 2: People walking in and out of an auditoriumWhich statement is correct? Example 1 represents a gas and Example 2 represents a solid.Example 1 represents a liquid and Example 2 represents a gas.Example 1 represents a gas and Example 2 represents a liquid.Example 1 represents a solid and Example 2 represents a gas. How does the idea that E. coli could live in food and liquids influence Bessers actions? In an experiment that tests howdifferent fertilizers effect the growth ofplants, what would the INDEPENDENTvariable be?A. the growth of the plantsB. the fertilizersC. multiple groups with the same plant and fertilizerD. a plant without fertilizers Which phrase describes insurance co-pays? Answer the following questions Question one Are the following rational, irrational or neither? Please HELP ASAP A train leaves Boston at 10:20 AM and arrives in Stamford at 1:00 PM. Find the distance between the stations if the average speed of the train is 60 mph. Why is it important to know what happened first when studying history? how do fossils provide evidence for evolution An office supply store purchased a case of binders for $600. The profit (P) to be made on the binders is defined by the functionP(b) - 8.50b - 600, where b is the number of binders sold.Part A What is the range of the function if the domain is {10, 45, 72, 100)?Part B What do the domain and range represent in this situation?Part C What is the minimum number of binders that the store needs to sell in order to make a profit (P >0)? Show or explain your work.Part D What is the minimum profit the store can make on the sale of these binders? Show or explain your work. what lines represent parallel to y=6x+2 what is the best way to figure out which conflicting historical accounts is more trustworthy? When the cat is about to eat a mouse on Matties mothers quilt, this could be described as a ______________.a. Predicamentb. Disasterc. Situationd. Crossroad How has the North American Free Trade Agreement increased trade between the nations of Canada, Mexico, and the United States?Aby reducing tariffsBby imposing quotasby establishing embargoesDby prohibiting foreign investment what is the product of 5^2 x 5^4 as a single power How does the author support the claim that the President has an enlarging scope of responsibilities