A bag contains 3 red marbles, 5 blue marbles, and 4 black marbles. Jenna draws a black marble and does not replace it. What is the probability of drawing a black marble next?
A. 1/3
B. 1/4
C. 3/11
D. 4/11

The following equations could be used to find the price of a child's ticket,  3x + 2(2x) = 28, the correct option is B.

An equation is a mathematical statement formed when two expressions are equated using an equal sign.

The equations are useful in determination of unknown parameters.

The equations are of various types, such as Trigonometric equations, quadratic equations.

The system of equations are used to solve complex problems.

Let the cost of child ticket is $x

An adult ticket is twice the cost of a child's ticket.

Let the cost of adult ticket is $2x

The total amount Angela paid is $28 for two adult tickets and three children's tickets.

The equation that will be formed is

4x + 3x = 28

It can also be written as 3x + 2(2x) = 28.

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-1/7 belongs to B. Rational numbers and F. Real numbers.

A set is a collecting of well defined objects one form of writing a set is in roaster method where we write the elements with commas and close them with second brackets.

According to the given question we have to select all the sets in which the number - 1/7 is an element.

-1/7 is a rational number as it can be written in p/q form where q ≠ 0.

This also contain in the set of real numbers as in -1/7 there is no imaginary part.

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Answer:

[tex]( {6}^{3} ) {}^{ - 3} \\ = \frac{1}{( {6}^{3}) {}^{3} } \\ \\ = \frac{1}{ {6}^{9} } \\ \\ = {6}^{ - 9} [/tex]

Answer:

6^-9

Step-by-step explanation:

the answer is proved above

Answer:

From -2<x<-1, the function F(X) is increasing. (B)

Really, it increases all from around -2.5<x<0.5

C is also the second answer, as it increases til around 2.5

It is decreasing from -4<x<-3. But increases right after. It then starts to slow down around x = 1 and go down again.

Which means (B) is your answer.

If you want to get fancy, its a polynomial and if you take the derivative for instantaneous rate, you will see f prime is increasing if you make an example function.

Answer:

-2,5 < x < 1

is the simplified and truncated value

Step-by-step explanation:

Answer:

x=3

Step-by-step explanation:

Step 1: you have to replace y with x-6 to make it all one equation (as seen in the picture below)  

Step 2: write it all together so: x-6= -2x+3

Step 3: add 2x on both sides to cancel out the negative so: x+ 2x and -2x+2x

Step 4: add 6 on both sides to cancel out the negative so: -6+ 6 and 3+6

Step 5: divide 3 by 3x and 9 to get x

Ans: (1/2)218 = 109

----

Closest to that is 104

Answer:

B. 104

Step-by-step explanation:

It would make the most sense if it were somewhere in the middle since flipping a coin has a 50% chance of being heads.

B. 104 is closest to the absolute middle of 218, therefore, it would be the most accurate.

Answer:

12 = u

Step-by-step explanation:

52=5u-8

Add 8 to each side

52+8=5u-8+8

60 = 5u

Divide each side by 5

60/5 = 5u/5

12 = u

Answer:           1/6

Step-by-step explanation:

Answer:

4y

Step-by-step explanation:

product means multiply

4y

Answer:

4y

Step-by-step explanation:

Answer:

The two most widely used measures of the “center” of the data are the mean (average) and the median. To calculate the mean weight of 50 people, add the 50 weights together and divide by 50 . To find the median weight of the 50 people, order the data and find the number that splits the data into two equal parts.

Answer:

The centroid of a triangle divides each median in the ratio of 2:1. D, E, F are mid-points of BC, CA, AB. AD, BE and CF are medians. The medians cut each other are centroid G.

Helpful link:

https://qcweb.qc.edu.hk/math/Junior%20Secondary/Centroid%20divides%20medians%20in%202%20to%201.htm#:~:text=The%20centroid%20of%20a%20triangle,in%20the%20ratio%202%3A1&text=D%2C%20E%2C%20F%20are%20mid,each%20others%20are%20centroid%20G%20.

Answer:

The centroid of a triangle divides each median in the ratio of 2:1. D, E, F are mid-points of BC, CA, AB. AD, BE and CF are medians. The medians cut each other are centroid G.

Helpful link:

https://qcweb.qc.edu.hk/math/Junior%20Secondary/Centroid%20divides%20medians%20in%202%20to%201.htm#:~:text=The%20centroid%20of%20a%20triangle,in%20the%20ratio%202%3A1&text=D%2C%20E%2C%20F%20are%20mid,each%20others%20are%20centroid%20G%20.

Answer:

18.3125

18.5635

18 13/16

Step-by-step explanation:

Answer:

Divide the number of contestants by 4 and when there is 120 contestants there is 30 winners

Step-by-step explanation:

Looking back at past sequences we can see that when we had 8 contestants we had 2 winners 8/4=2 and we also saw 16/4=4 so that was the formula now we just had to do it on 120 contestants and now we get 30 winners....Hope this helps! :)

Answer:

Step-by-step explanation:

The ratio of contestants to winners is 4 : 1 so to find the number of winners you must divide by 4, so you must divide 120 by 4, which is 30.

Answer:

B:

4 units right and six units up

Answer:

1st- thorn forest - forest which have many thorns it is in rajasthan

2nd- evergreen forest - a forest whose trees are green in any season

3rd- Amazon forest - in Amazon forests there are many venomous/ poisonous amphibians and stuff like anacondas and wild animals.

Step-by-step explanation:

so sorry this is all i could find

Answer:

4xy exponent 7/2xy exponent 6

Answer:

Step-by-step explanation:

First expand the numerator by distributing in the 2 outside the parenthesis to get

[tex]\frac{16x^6y^4}{2x^6y}[/tex] and now, working on one thing at a time, we will divide:

16     x⁶     y⁴

2      x⁶      y    

I separated each set of like expressions to make it easier to see. First divide the numbers, 16 by 2:

8       x⁶      y⁴

        x⁶      y

the x's cancel out (divide to a 1):

8      y⁴

       y

and by the rules for dividing like bases, we will subtract the exponents, lower from upper to get, finally:

8y³

Step-by-step explanation:

use the formula if things get to difficult

Answer:x=6 x=-5

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

D is the answer I did the math.

Hope this helps!

Answer:

d

Step-by-step explanation:

I got 288 but that could be wrong. graduated a while ago. hope it helps though.

Answer:

48 Chocolates

Step-by-step explanation:

Monday: 48

Tuesday: 24

Wednesday: 12

Thursday: 6

Friday: 3

Answer:

The answer would be B if its reffering to the photo and A if its reffering to the scale.

Answer:

8 1/8 units³

Step-by-step explanation:

V = lwh

Since the area is already given to you, just multiply that by the other number.

[tex]V=(16\frac{1}{4})(\frac{1}{2})\\\\V=\frac{65}{8}=8\frac{1}{8}[/tex]

Answer:

original: 2x4

scale factor: 8

new dimensions:

2x8=16

4x8=32

(To get the new dimensions all you have to do is multiply the sides by the scale factor)

Step-by-step explanation:

The new dimensions of the photograph is [tex]64 \ in^{2}[/tex]

The scale factor is a measure for similar figures, who look the same but have different scales or measures. Suppose, two circle looks similar but they could have varying radii. The scale factor states the scale by which a figure is bigger or smaller than the original figure.

According to the question

[tex]S_{1} =2\times4=8[/tex]

[tex]S_{2} =8S_{1} =8\times8=64[/tex]

The new dimensions of the photograph is [tex]64 \ in^{2}[/tex]

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Answer:

$18.75 is the cost for 1 month of gameplay.

Step-by-step explanation:

2 software packages in total

Unit price for software package is $50, and since there are two packages, $50x2=$100

Now, we know that the total amount of money that the software cost was $100, we can do 250-100=150

150 is how much they spent for 8 months of gameplay. (2+6=8)

To find how much 1 month of gameplay costs, we need to do 150/8 which is equivalent to $18.75