Mathematics High School


A bag contains 9 blue marbles and 36 green marbles. If a representative sample contains 3 blue
marbles, then how many green marbles would you expect it to contain? Explain.

Answers

Answer 1

Answer:

It is 12 green marbles

Step-by-step explanation:

[tex] \frac{9}{3} = 3 \\ \\ \frac{36}{x} = 3 \\ x = \frac{36}{3} \\ x = 12[/tex]

I hope that is useful for you :)

Related Questions

True Or False? When the group gets to Camamzotz, Mrs. Whatsit says the 3 ladies will stay with them the whole time.​

Answers

Answer:

false

Step-by-step explanation:

Hitoshi spends 30 minutes an history homework, 60 minutes on English homework, and x minutes on math homework, one fourth of his total homework time is spent on math which equation can be used to find the amount of time Hitoshi spends on his math homework

Answers

The answer is 1/4(30+60+x)= x

Rebecca wants to prove that if the diagonals in parallelogram are perpendicular, then it is a rhombus. Select the appropriate rephrased statement for Rebecca's proof

Answers

Answer:

The answer is C

Step-by-step explanation:

Khan Academy

Answer:

C

Step-by-step explanation:

*PLEASE HELP ME* (math attachment) IT'S PAST MIDNIGHT I'M TIRED AND DESPERATE

Answers

Answer:

D

Step-by-step explanation:

let's rewrite this

x + y = 11                  - equation 1

   - x = - y - 9           - equation 2

solve the first equation for x

x + y = 11            (add -y to both sides to get x by itself)

     x = -y + 11           - equation 3

now substitute -y + 11 for x in the second equation

 y - 11 = - y - 9        (2 negative signs next to each other equals positive)

2y - 11 = -9              (add y to both sides)

      2y = 2               (add 11 to both sides)

        y = 1                (divide both sides by 2)

now substitute y = 1 into equation 3

x = -1 + 11

x = 10

therefore, x = 10 and y = 1. in coordinates, x goes before y

therefore, the coordinates are (10, 1)

therefore the answer is D

good luck my friend! hope this helped a lot! also, i found a website if you don't fully understand this, its called MathPapa, i didn't use it to work this out so my working might be different but it definitely helps me sometimes. for an equation like this, type it likes this: x+y=11; -x=-y-9

-cheesetoasty

It’s the 2nd one I did this

(1a) There is a closed carton of eggs in Mai's refrigerator. The carton contains e eggs and it can hold 12 eggs. What does the inequality e<12 mean in this context?

Answers

Answer:

e<12 mean in this context means that the number of eggs in the carton is not up to 12

Step-by-step explanation:

The number of eggs in the carton = 12

The capacity of egg carton is depicted as e

Hence, the inequality e<12 in this context means that :

The number of eggs in the carton is less than the capacity of the egg carton

Thus we can conclude that the number of eggs in the carton is not up to 12, which is the number of eggs the carton can hold.

A line that is parallel to y=3x+10 would have a slope of _______.​

Answers

Answer:

three

Step-by-step explanation:

HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP PLEASE PLEASE PLEASE

Answers

Answer:

XYZ is similar to ABC

Step-by-step explanation:

take a ruler and measure the sides

Find the exact circumference of a circle with the given radius.

36 inches

C =

Answers

Circumference is 226.19

EXPLANATION:
Since 36 is the radius you multiply that by 2 to get diameter which is 72. Then you multiply 72 by pi to get 226.19.

find the rate of change (slope) for the graph below ( simplify answer)​

Answers

The slope is -1 the equation is y=-1x+1

solve linear system of equations graphically - y=3/5x+2
y=x-6

Answers

Answer:

(20, 14) If the first y is positive

(5/2, -7/2) If the first y is negative

Answer:

Point form: (20,14)

Equation form: x=20, y=14

Step-by-step explanation:

Nalani says the expression 9+7r cannot be factored using the GCF. Is she ​correct? Explain why or why not

Answers

Answer:

Nalani is correct.

Step-by-step explanation:

Given - Nalani says the expression 9+7r cannot be factored using the GCF.

To find - Is she ​correct? Explain why or why not.

Proof -

GCF - Greater Common factor

Given that, the expression is - 9 + 7r

As

HCF(9, 7) = 1

So , we can not factor the expression.

i.e. there does not exist any number who is a multiple of 9 and 7 both.

So,

Nalani is correct.

Example -

Let the expression be 24 + 18x

HCF(24, 18) = 6

So,

24 + 18x = 6(4 + 3x)

Each of the figures are similar. Find the missing length.

Answers

Answer:

7

Step-by-step explanation: the rule is to divide by  in this case. 21 / 3 is 7

Answer:

? = 7 m

Step-by-step explanation:

6/18 = ?/21

18? = 126

? = 7

Can someone help me please

Answers

Answer:

c as it is on a straight line

Answer:

C. 2x + 58 = 180

Step-by-step explanation:

Not 100% sure but I hope this helps you!

A- {(-4, -3), (2, 2), (2, 1), (0, 3), (-2, 4}
B- {(-3, -4), (2, -2), (2, 1), (3, 0), (4, -2)}
C- {(-3, -4), (-2, 2), (2, 1), (3, 0), (4, -2)}
D- {(-3, 4), (-2, -2), (1, 2), (3, 0), (4, 2)}

Answers

Answer:

C

Step-by-step explanation:

The first point would be (-3,-4) which means A and D are eliminated.

The second point is (-2,2) which means you are left with C which is the correct answer

Which expression is equivalent to −13(6x+15)−3?

Answers

There you go. N have a nice day:))

what is the vertex of f(x)=x^2-9x+14

Answers


Its going to be a lot of steps

Step one

To complete the square, the same value needs to be added to both sides

f(x)+?=x^2 -9x+?+14

Step two

To complete the square add to the expression

x^2 -9 + 81/4= ( x- 9/2 ) ^2 add 81/4
To the expression


f(x)+?=x^2 -9+ 81/4 + 14

Step three

Since 81/4 was added to the right-hand side, also add 81/4 to the left-hand side

f(x)+81/4=x^2 -9x+81/4+14

Step four

Use a^2-2ab +b^2 = ( a-b)^2 to factor the expression

f(x)+81/4=(x-9/2)^2+14

Step five

Move the constant to the right-hand side and change its sign

f(x)=(x-9/2)^2 + 14- 81/4

Last step

Calculate the difference

F(x)=(x-9/2)^2 -25/4


That was to long
Karl:D

Solve for b. Thank you

Answers

Answer:

c

Step-by-step explanation:

simplify both sides then isolate the variable

Answer:

C

Step-by-step explanation:

In order to find "b" (the y-intercept) from the equation y=mx+b ... If you know the slope (m), use any one of the given points by substituting the Y value of the given point for y, and substituting the X value of the given point for x. Solve for b = Y-mX.

please help me and I have more too​

Answers

Answer:

b. x=3

Step-by-step explanation:

i hope this helps :)

Answer:

4x+20=6x+14

Step-by-step explanation:

20=2x+14

6=2x

3=x

PLEASE ANSWER QUICKLY!!!

Answers

6 and 7
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What is the value of in the solution of the
system of equations 3x + 2y = 12 and 5x – 2y = 4?

Answers

Answer:

x = 2

y = 3

Step-by-step explanation:

add the 2 together and the y-values drop out and you are left with:

8x = 16

x = 2

3(2) + 2y = 12

2y = 6

y = 3

I REALLY NEED HELP!!! what is the answer to this one?

Answers

I think the answer is A. I will check if it is wrong

help asap kinda confused D;

Answers

Answer:

its 8

2 to the power of 3 is 8

Patrick deposits $500 in a savings account, and he makes no deposits. How much money does Patrick have the savings account after 5 years?

Answers

He still has $500, unless there is some interest that wasn’t mentioned.

find the value of x
2x−3=5

Answers

Answer:

x=4

Step-by-step explanation:

5+3 =8

8/2 = 4

factor 4 in...

(2x4)-3=8

Answer:

X=4

Step-by-step explanation:

ASAP someone please simplify these two exponents

Answers

Answer:

3) [tex]qm^{-17}[/tex]

4) [tex]np^{-3}[/tex]

These should be your answer! Make sure to double check!

Step-by-step explanation:

Just simplify.

Matt bought notebooks at the store for $1.07 each. He spent $3.21 on the notebooks. Let x represent the number of notebooks Matt bought. Use the equation 1.07x = 3.21 to find the number of notebooks he bought.

Answers

answers 3, you move 1.07 under 3.21 and divide those two and you get 3.

Is this is it rational or irrational? If rational prove it by converting it to a fraction ​

Answers

Answer:18

Step-by-step explanation:trust

A sculpture at a park is in the shape of a rectangular pyramid. What is the volume of the sculpture if the length and width of the base of the pyramid are 11 feet and 5 feet respectively, while the height of the pyramid is 6 feet? ​

Answers

Answer:

40

Step-by-step explanation:

11x6=60

60-5x4= 20

=40

Which phrase describes the shape of the data? Please help I will give brainleist

Answers

Which Phrase describes the shape of the data?

D. Not symmetric, bell shaped

(This is for my Algebra ll project all you need to do is answer this question) How many siblings do you have?

Answers

Answer:

I have two Sisters

Step-by-step explanation:

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