The ratio of boys to girls in Ms. Cunningham’s class is 2 to 3. There are 18 girls in the class.
What is the total number of students in Ms. Cunningham’s class?

Answers

Answer 1

Answer:

30 students

Step-by-step explanation:

18 divided by 3 is 6

6 x 2 = 12

12 + 18 = 30

Answer 2

Answer:

30 i just took the test 28m ago and it said it was right

Step-by-step explanation:


Related Questions

Which shows the numbers Nine-tenths, 0.3, 0.8, Five-tenths, and Two-tenths in order from least to greatest?

0.3, Five-tenths, Nine-tenths, Two-tenths, 0.8
Two-tenths, 0.3, Five-tenths, 0.8, Nine-tenths
Five-tenths, Two-tenths, 0.3, 0.8, Nine-tenths
Nine-tenths, 0.8, Five-tenths, 0.3, Two-tenths

Answers

Answer:

Step-by-step explanation:

Let's express all the given numbers as decimals:

nine tenths- 0.9

0.3

0.8

five tenths- 0.5

two tenths- 0.2

Ordering them from least to greatest:

two tenths, 0.3, five tenths, 0.8, nine tenths

Answer:

B is your answer

Step-by-step explanation:

a group of fifth graders collected 46 cans of food to donate to three food banks. If each food bank is get an equal number of cans, how many cans do the each receive

Answers

Answer:

about 15.3.

Step-by-step explanation:

46 divided by 3. ig

Rose how r u doing with Sofie???

Answers

Awe ur really wasting ur points for a girl every boy should do this :(

simplify 4p^5q^3*p^2^-4

Answers

24p+7q

-----------

    12

Answer:

[tex]4p^{5q^{3} -2}[/tex]

Step-by-step explanation:

The base would stay the same as nothing is being multiplied.

Caesar has $180 in his bank account. He needs a total of $2,000 to purchase his uncle's car. He earns $60 per day and says $50 of that amount each day. Which equation can be used to determine the number of days, D, he needs to work to reach his goal of $2,000?​

Answers

Answer:

Im not 100% sure because I dont have paper, but the answer is..YELLOW and Dark blue

Step-by-step explanation:

If this isnt the answer pls forgive me, and if you can pls gimme brainliest


Sophia spent $75.00 of her $225.00 paycheck on new shoes. What percent of her paycheck did she spend on the new pair of shoes?

Your answer:

if you do solve please make an explanation :)

Answers

Answer:

33.33%

Step-by-step explanation:

75*100=7500

7500/225=33.3333333

What is 5654554 + 5544527?

Answers

Answer:

11,199,081

Step-by-step explanation:

Hope this helped,  have a great day! ;D

As an estimation we are told 5 miles is 8 km.
Convert 92 km to miles.

Answers

Answer:

105 miles

Step-by-step explanation:

Can I get the answer ?

Answers

Answer:

If the triangle is the same length on the right it will be the same on the left so its 62°

Step-by-step explanation:

Hey! Hoped I helped Im Eve btw Have an amazing day and consider marking this  brainliest please. If you do thank you in advanced.

Answer:

58 degrees

Step-by-step explanation:

A triangle is 180 degrees total. 60+62= 122. 180-122= 58. The last angle is 58

A common factor for two numbers is one that is a divisor of each of
the two numbers. What is the greatest common factor of 24 and 36?

Answers

Answer:

The answer is 12.

Step-by-step explanation:

Please mark as Brainliest, this is the right answer

If y=10x+0.08
Is this relationship proportional? At least 1 sentence explanation.

Answers

Answer:

No it is not proportional.

Step-by-step explanation:

Crystal's gym membership costs $48 a month. Which table shows the sum of the
amounts that Crystal will pay for her gym membership over the next 4 months?

Answers

Answer:

it will cost 240$ dollars to pay for 5 month

Step-by-step explanation:

PLZ GIVE ME BRAINLEST

Plz help ASAP!!!! I NEED IT!!!!!If you don't know the answer plz don't use an answer to say "oh idk" or sum like that

The shape we are referring to is the singular one

Which shapes are similar but not congruent to shape I?

The choices are the groups

Answers

Answer:

I wanna say the first picture second answer choice. Please tell me if I am right.

Step-by-step explanation:

Answer: The first group is the correct answer

Step-by-step explanation:

I took a test with this question got it right

PLEASE HELP ASAP !!!!!!!!!!!!!!!!!!!


The variables x and y vary directly. Use the values to write an equation that relates x and y. y=2 ; x=10

Answers

Answer:

20=y*x = 2*10=20

Step-by-step explanation:

If this is what you are asking for here q-q

what is the branch of mathematics that uses variables, numbers and operations.

Answers

Answer:

Step-by-step explanation:

Algebra is a branch of mathematics that uses mathematical statements to describe relationships between things that vary. These variables include things like the relationship between the supply of an object and its price.

Answer:

Algebra

Step-by-step explanation:

This is because the branch of mathematics that uses variables, numbers, and operations is called algebra.

She needs a little less than 4 pounds to make 12 turkey burgers because 1/3 times 12 is about 3.99 pounds. But she only has 3 3/8 pounds which is about 3.375 pounds.

Answers

Answer:

10 burgers

Step-by-step explanation:

[tex]{3.375pounds}(\frac{12 burgers}{3.99pounds})=(\frac{xburgers}{3.375pounds}){3.375pounds}\\xburgers=10.15\\[/tex]

so you get 10 burgers

or you could approach it

[tex]\frac{3.375}{(1/3)} =[/tex]3.375×3=10.125

PLEASE HELP!!QUICK! in 3 years ,a gyms membership went up from 6,400 to 8,400.which expression shows how to find the percent of increase?
A.2,000 divide by 8,400
B.2,000 divide by 6,400
C.6,400 divide by 2,000

Answers

I’m pretty sure the answer is B.

At a butchers hosp, Hilda bought beef and pork. She left with 18 and 8/25 pounds of meat. Express the number of pounds of pork she bought using a decimal.

I'm not sure if I mis-read or something.. How am I supposed to find the pounds of pork if there isn't any info about how much beef she bought. Am I doing something wrong? If so, what is the answer?

Answers

Answer:

18.32

Step-by-step explanation:

convert the fraction 8/25 to the decimal .32 and add 18

These tiles represent the expression 2(5x–3)–9x. Which expression is equivalent to 2(5x–3)–9x?

Answers

Answer:

There are various answers... x-6 or 10x-6-9x or (5x-3)2-9x or (-3+5x)2-9x

Step-by-step explanation:

We all just have to distributive or simplify

Please help me understand this question

Answers

Answer:

Make the picture clearer and bigger

Step-by-step explanation:

Explain what you would do first to simplify the
expression below. Justify why, and then state the
result of performing this step.
312
1212
2
4+²

Answers

Answer:

how do you do this

Step-by-step explanation:

Part B: You can also find the standard deviation for the binomial probability distribution of a specific outcome in a binomial experiment. Use the formula to find the standard deviation. You've already identified n and p in Part A. Show your work, and round your answer to two decimal places.

Answers

Answer:

Mean = np + n(n-1)p²

Standard Deviation= √ σ²   = √npq

Step-by-step explanation:

The m.g.f of the binomial probability distribution b(x;n,p) is derived as below.

M₀t = E (e)^tx

        = ∑(e)^tx (nCx) (p)^x q^(n-x)            { x varies from 0 to n}

        = ∑(e)^tx (nCx) (pe^t)^x q^(n-x)

          = (q +pe^t)^n

The expansion of this binomial is purely algebraic and need not to be interpreted in terms of probabilities.

WE get the moments by differentiating M₀(t)  once, twice, etc. with respect to t and putting t=0

Thus

μ₁`  = E(X) = [ d/dt (q +pe^t)^n]    t=0

     = [ npe^t (q +pe^t)^n-1]  t=0  

     = np

And

μ₂`  = E(X²) = [ d²/dt² (q +pe^t)^n]    t=0

      = [ npe^t (q +pe^t)^n-1]    +  [ n(n-1)p²e^²t (q +pe^t)^n-2]    t=0

= np + n(n-1)p²

Variance= μ₂= μ₂`  - μ₁`²

             σ² =E(X²)-  E(X)²

              σ² =np + n(n-1)p²- (np )²

             σ²   =npq

Standard Deviation= √ σ²   = √npq

Use the quadratic model y = −4x2 − 3x + 4 to predict y if x equals 5.

Answers

Answer:

-111

Step-by-step explanation:

substitute 5 in place of each x

    -4(5)^2 - 3(5) + 4

then evaluate or type it into your calculator

    -100 - 15 + 4

Answer:

It is -111

Step-by-step explanation:

Hope this helped have an amazing day!

The Casey family uses up a 1/2 gallon jug of milk every 3 days. At what rate do they drink milk?

Answers

1/6 Gallons a day or .166


Answer:

1/6

Step-by-step explanation:

1/2 divided by 3

Consider the probability distribution shown below. x 0 1 2 p(x) 0.15 0.60. 0.25 compute the expected value of the distribution.

Answers

Answer:

1.10

Step-by-step explanation:

Given the probability distribution :

x : ___ 0 ___ 1 ___ 2

p(x)__0.15 _0.60 __0.25

The expected value is obtained by:

Σ(X * p(x))

(0 * 0.15) + (1 * 0.60) + (2 * 0.25)

0 + 0.60 + 0.50

= 1.10

2. Alex is training for a marathon. Yesterday, he ran 12 miles North then 9 miles east. He then ran back to his starting point taking the shortest distance possible. What was the total distance he ran yesterday? Hint: find the hypotenuse first. A.225 miles G. 36 miles T.15 miles. Y. 21 miles​

Answers

Answer:

21

Step-by-step explanation:

12 + 9 = 21

that is the distance he ran so that is the distance he will run back

( i hope that helped)

find the equation for the line​

Answers

Answer:

y = 1/2x + 1.5

Step-by-step explanation:

first find the slope and then put it in y= x+b

you can see that to get from (-1,1) to (1,2) you must go up one and over two

slope is = rise over run --> rise 1 and run 2

the b is were it hit threw the y intercept

6th grade math i mark as brainliest​

Answers

Answer:

dividend is 30

divisor is 6

Step-by-step explanation:

What is the slope of the line through (0,5) and (-2, -1)? Please help.​

Answers

You have the correct answer. It’s 3. Slope is just defined as rise over run, so you can count that the rise between the two points is 6, and the run is 2. 6/2=3.

Last year's cost, c, of a water park season pass increased 35%. The expression C+0.35c can be used to represent the increased price of a season pass. What is another expression that can be used to find the the new cost of a season pass?

Answers

Answer:

c+35/100c

Step-by-step explanation:

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