There is a bag with only red marbles and blue marbles.
The probability of randomly choosing a red marble is 7/9.
There are 42 red marbles in the bag and each is equally likely to be chosen.
Work out how many marbles in total there must be.

Answers

Answer 1

Answer:

do 7/9*42. then you will get answer

Answer 2

Probability helps us to know the chances of an event occurring. The total number of red marbles in the bag is (7×42)/9.

What is Probability?

Probability helps us to know the chances of an event occurring.

[tex]\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}[/tex]

Given that there are 42 red marbles in the bag and each is equally likely to be chosen. Also, The probability of randomly choosing a red marble is 7/9. Therefore, the total number of red marbles in the bag is,

Number of red marbles = 7/9 × 42

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Related Questions

Which function has a greater rate of change?

Answers

Answer:y-2x+5

Step-by-step explanation: I think

A cube with side of 6cm or a rectangular box of 7cm by 6cm by 4cm . find the volume​

Answers

Answer:

Volume of cube = 216cm^3

Volume of box =  168cm^3

Step-by-step explanation:

Cube:

6 x 6 = 36

36 x 6 = 216

Box:

7 x 6 = 42

42 x 4 = 168

Answer:

216 cm^3, 168 cm^3

Step-by-step explanation:

Cube

Volume of a cube is the side * side * side.

Side = 6 || 6 * 6 * 6 = 216 cm^3

Rectangular Box

Volume of box is product of height, depth, and width.

Sizes are, 7, 6, 4 || 7 * 6 * 4 = 168 cm^3

1. Factor 3h2 - 11h - 42 completely.

Answers

Answer:

3h² - 11h - 42 = (3x+7)(x−6)

Step-by-step explanation:

We need to find factors of 3h² - 11h - 42. It is a quadratic equation.

We search two numbers such that their product is 42 and sum is 11. So,

3h² - 11h - 42 = 3h² -18x +7x -42

= (3x+7)(x−6)

So, the required factors are (3x+7)(x−6).

The point (7, 4) lies on a circle centered at the origin. Write the equation of the circle and state the radius.

Answers

Given:

The point (7, 4) lies on a circle centered at the origin.

To find:

The equation of the circle and the radius of the circle.

Solution:

Distance formula:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

The point (7, 4) lies on a circle centered at the origin. So, the distance between the points (7,4) and (0,0) is equal to the radius of the circle.

[tex]r=\sqrt{(0-7)^2+(0-4)^2}[/tex]

[tex]r=\sqrt{(-7)^2+(-4)^2}[/tex]

[tex]r=\sqrt{49+16}[/tex]

[tex]r=\sqrt{65}[/tex]

The standard form of the circle is

[tex](x-h)^2+(y-k)^2=r^2[/tex]            ...(i)

Where, (h,k) is the center of the circle and r is the radius of the circle.

Putting h=0, k=0 and [tex]r=\sqrt{65}[/tex] in (ii), we get

[tex](x-0)^2+(y-0)^2=(\sqrt{65})^2[/tex]

[tex]x^2+y^2=65[/tex]

Therefore, the equation of the circle is [tex]x^2+y^2=65[/tex] and its radius is [tex]r=\sqrt{65}[/tex].

Use the graph to answer the question.
Which equation describes the circle?
O (x-4)2 + (y + 1)2 = = 25
O (x – 4)2 + (y + 1)2 = 5
O (x + 4)2 + (y- – 1)2 = 25
O (x + 4)2 + (y – 1)2 = 5

Answers

Answer:

Its A.

Step-by-step explanation:

Edge 2021

This question is based on the equation of circle. Therefore, the equation of circle is (x - 4)² + (y + 7)² = 81 describes a circle with center (4, -7) and radius 9.

What is circle?

A circle is a closed two-dimensional figure in which the set of all the points in the plane is equidistant from a given point called “centre”. The perimeter around the circle is known as the circumference.

here, we have,

Given:

A circle with center (4, -7) and radius 9.

We need to determined the equation describes a circle with center (4, -7) and radius 9.

According to the question,

As we know that, the equation of a circle in standard form is

⇒ (x - h)² + (y - k)² = r²

Where (h, k) are the coordinates of the center and r is the radius.

Here, it is given that,  (h, k) = (4, - 7) and r = 9.

Therefore, by putting the given values.

We get,

⇒ (x - 4)² + (y - (- 7))² = 9², that is

⇒ (x - 4)² + (y + 7)² = 81 ← equation of circle

Therefore, the equation of circle is  (x - 4)² + (y + 7)² = 81 describes a circle with center (4, -7) and radius 9.

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PLEASE HELP FAST(solve the pre-algebra question)

Answers

Answer:

Flag = 46

Shamrock = 46

Hat = 27

Accordion = 198

Step-by-step explanation:

To keep things simple, I'll denote the flag with f, the shamrock with s, the hat with h and the accordion with a.

The second equation tells us that f/s is 1. When you divide something by something and get 1, that means they're equal (eg, 2÷2=1, 3÷3=1 etc). That means f=s.

The second equation tells us f+s+s=138, but since f=s, this basically means 3f=138. Dividing both sides by three, we find out f=46 and by extension, s=46.

The third equation tells us s+h+h=100. We know s so we can write this as 46+2h=100. Take 46 form both sides to get 2h=54. Divide both sides by 2, we find out h=27.

The fourth equation tells us a=4f+14. Sub in our value for f and this is a=(4x46)+14. Solve this to get a=184+14, a=198.

Evaluate -5x-6y when x=-4 y=4

Answers

Answer:

-4

Step-by-step explanation:

What is the solution to the system x+y=10 3y=-3x+30

PLEASE helpppp

Answers

Answer:

Step-by-step explanation:

x+y=10

x=10-y

x=10-5

x=5

3y= -3x+30

3(10-y)= -3(10-y)+30

30-3y= -30+3y+30

30+30-30=6y

30=6y

y=5

14 x ^3 y ^5 z ^2 - 98 x^2 yz ^2 + 28 x^2 y^3. Show your work​

Answers

Yeyrhrhiekekdkdkdkkd

Stan says that the least common multiple of 6 and 8

Answers

then the lest multiple of 6 and 8 are 5 and 7 duh

HELP...ASAP...GIVEING 50 POINTS FOR THIS HELP PLLLLLLZZZZZZZZz

Answers

Answer:

HI JORDEN!!!

Step-by-step explanation:

Write a polynomial to represent the larger rectangle and the smaller rectangle.

Answers

Answer:

See answers below.

Step-by-step explanation:

Large Rectangle:  length x width = (x + 3)(x - 4) =

                                        x² - 4x + 3x - 12

                                           x² - x - 12

Smaller Rectangle:  length x width = (x)(3) = 3x

Shaded Region: shaded area =  lg. rectangle minus small rectangle

                             A = (x² - x - 12) - 3x  

                             A = x² - 4x - 12

Solve for x, if shaded reion's area is 48 square units:      

                          48 = x² - 4x - 12

                                  x² - 4x - 12 -48 = 0

                                  x² - 4x - 60 = 0

                                  (x - 10)(x + 6) = 0

                                   x - 10 = 0   or   x + 6 = 0

                                   x = 10    or    x = -6

                                               But x represents a length, so x cannot be -6.

                                  x = 10

                                     

You drank 50 L of water on Tuesday but only 30 L of water on Wednesday. What is the percent of change

Answers

Answer:

40% decrease

50=100

30/50=x/100

30=60% of 50

40% decrease of 50 is 30

Step-by-step explanation:

please mark as brainiest

please give 5 stars

thank you

ill mark brainlist plss help

Answers

Answer:

256 ft

Step-by-step explanation:

51+51= 102

77+77= 154

154+102=256

Answer:

P=2(l+w)=2·(51+77)=256ft

Step-by-step explanation:

The answer will be 256ft

which value is greater for the people who go to the gym in the daytime than for the people who go in the evening?

Answers

Answer:

It's maximum age I took the test and that's what I put it says it was right.

Step-by-step explanation:

In a sole proprietorship,______________ receive all of the profits. A banks B. owners C. partners D. investors Please select the best answer from the choices provided O:A O:B О:С O:D​

Answers

Answer:

B. owners

Step-by-step explanation:

Sole proprietorship can be defined as a type of business that is typically owned by an individual or one person and as such is solely responsible for its debts.

In a sole proprietorship, owners receive all of the profits because they own the business and do not share with any partner.

Basically, a sole proprietorship business is a type of business that is owned by a single person and as such their profits are taxed once as personal income tax.

Answer:

B

Step-by-step explanation:

I got it right on edge

Determine the average rate of change in braking distance, in ft/mph, between one can traveling at 50 mph and one
traveling at 70 mph. Explain what this rate of change means as it relates to braking distance.

Answers

Answer:

306.25-156.25/70-50 =150/20=7.5 ft/mph

Step-by-step explanation:

For every 1 mph over 50 mph a car is traveling, its braking distance increases by 7.5 ft

The required braking distance between the one that can travel at 50 mph and one traveling at 70 mph is 7.5 ft/mph.

What is the rate of change?

Rate of change is defined as the change in value with rest to the time is called rate of change.

Here,
Distance traveled when applying brake when speed is 70 mph is 306.25,
Distance traveled when applying brake when speed is 50 mph is 156.25 ft

The rate of change of braking is given as,

= 306.25-156.25/70-50
= 150/20
=7.5 ft/mph

Thus, the required braking distance between the one that can travel at 50 mph and one traveling at 70 mph is 7.5 ft/mph.

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For 8 days, Teresa put $3 into her savings account each day. Her parents also added a certain amount of
money to the account each day. In the end, there was a total of $88 in the account. How much money
did Teresa's parents add each day?
please help! :)

Answers

Answer:

I think 64 dollars

Step-by-step explanation:

*8x3=24  

88-24=64

? Any one know this one

Answers

Answer:

(3, infinity)

Step-by-step explanation:

range is talking about the y axis and every number the graph touches on the y axis. the first number is the minimum number and the second number is the max number. this graph's lowest point is 3, so the answer is (3, something). the max is never/infinity and that's how you get (3, infinity).

1. Savannah has 5 dogs and she feeds each of them 6 oz of dog food every day. How many
pounds of dog food do they eat each day?

Answers

Answer:

0.375 lb

Step-by-step explanation:

For this one all you need to do is convert 6 oz to pounds and to do this

For example to convert an ounce measurement to a pound measurement, use a simple formula. Since one ounce is equal to 1/16 of a pound, the formula for the conversion is:

pounds = ounces ÷ 16

1. Take measurement

2. Divided ounces by 5

3. Round the result to desired decimal places.

And don't just put this answer because I am not very sure.

1.875 pounds of dog food can be eaten by 5 dogs per day.

Pound and ounce based problem:

What information do we have?

Number of dogs = 5

Each dog eats per day = 6 oz

Total dog food eaten per day = Number of dogs × Each dog eats per day

Total dog food eaten per day = 5 × 6

Total dog food eaten per day = 30 oz

1 pound = 16 oz

So,

Total dog food eaten per day = 30oz / 16oz

Total dog food eaten per day =  1.875 pound

Find out more information about 'Pound'.

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Triangle ABC is shown below with its given side length measurements.
Which lists the angles of the triangle in order from largest angle to smallest
angle? *

Answers

Ans
Option A
Because the smallest angle is opposite to shortest side and largest angle is opposite to largest side.

Which city did Miss Hill move to with her new husband?
Group of answer choices

Georgia

New York

Chicago

Orlando

Answers

Miss Hill moved to Chicago.
Hope this helps!!
Please give brainliest if it’s correct!

In ΔRST, the measure of ∠T=90°, the measure of ∠R=6°, and RS = 3.6 feet. Find the length of ST to the nearest tenth of a foot.

Answers

Answer:

0.4

Step-by-step explanation:

Answer:

45.1

Step-by-step explanation:

I need help how do I solve this?​

Answers

The answer is just -infinite

a.A restaurant bill is $21. You leave a 15% tip. How much do you pay including the tip? b. Which of the following represents the amount a customer pays including the tip of 15% if the bill was dollars? Select all that apply.

Answers

Answer:

$ 24.15

Step-by-step explanation:

100%= $21

(100+15)% =115% ×$21

(115/100)*21= 24.15$

A box contains 30 marbles, of which 8 are
black, 10 are green, and 12 are yellow. If two
marbles are drawn at random, what is the
probability that both the marbles will NOT be
green?

Answers

Answer:

4/9

Step-by-step explanation:

'ng' = not green

P(ng,ng) = 2/3 x 2/3 = 4/9

3(6) + 4(2) - 5
What is the answer

Answers

Answer:

21

Step-by-step explanation:

3(6) +4(2) - 5

18 + 8 - 5

26 - 5

= 21

Find the Selling Price

CP = ₹600 Overhead charges = ₹45 Loss = ₹54

Someone Please Help Me With This​

Answers

I think it is 45 times 54 divided by 600 equals $4.05

Are the 1.5% and 1.5 the same?
EXPLAIN why or why not.

(PLS HELP ME OUT I AM BEGGING U THIS IS DUE TOMORROW)

Answers

Answer:

1.5 % is same as 1.50

explanation:

because 1.5 means that the equipment used to measure the number could not measure .It's equal, 1.50 is the same thing just with an added zero.

Can anybody help me solve this

Answers

Answer:

love to answer questions i cant see

Step-by-step explanation:

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