A bag contains 35 red counters only. Chen adds green counters to the bag. The probability of picking a green counter is now 0.3 How many green counters did Chen add?

Answers

Answer 1

Answer:

15

Step-by-step explanation:

Red counters = 35

Number of green counters = x

P(picking a green counter) = 0.3

Probability = required outcome / Total possible outcomes

Required outcome = number of green counter

Total possible outcomes = green counter + red counter

Hence,

0.3 = x / (35+x)

0.3(35 + x) = x

10.5 + 0.3x = x

10.5 = x - 0.3x

10.5 = 0.7x

x = 10.5 / 0.7

= 15

Number of green counters = 15


Related Questions

Find the shaded area.

Answers

Answer: ≈ 21.46 m²

Step-by-step explanation:

Area of square = 10 x 10 = 100 m²

Area of circle = π(5²) = 25π m²

Area of total = 100 - 25π = 21.46018366

≈ 21.46 m²

how many terms are in 3x+8y ?

Answers

Answer: 2

Step-by-step explanation:

Answer:

Two

Step-by-step explanation:

There are two sides to the equation-

Its quite simple.

identify the percent of change as an increase or a decrease 3/8 to 7/8

Answers

Answer:

133.5

Step-by-step explanation:

Bonnie bought 14 sponges. There were s sponges in each package. Choose the expression that shows how many packages Bonnie bought.

Answers

Answer:

14/s

Step-by-step explanation:

Bonnie bought 14 sponges. There were s sponges in each package. Choose the expression that shows how many packages Bonnie bought.

Number of sponges = Number of packages

Hence:

s sponges = 1 Package

14 sponges = x

Cross Multiply

s × x = 14 × 1

x = 14/s

Therefore, the expression that shows how many packages Bonnie bought.is given as

14/s

What's the diffrence between an Arithmatic sequence and a Geometric sequence?

Answers

Answer:

An arithmetic sequence has a constant difference between each term.

A geometric sequence has a constant ratio.

An inverse variation includes the points (15,1) and (n,5). Find n

Answers

Inverse variation: y=k/x

1. plug in the values: (15,1)
1=k/15

2. solve for k

3. Now, plug in what you can for the second point: (n,5)
5=k/n (if you do the step above, you will know “k”.

4. Solve for “n”


The value of n is, 75.

What is Proportional?

Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.

Given that;

An inverse variation includes the points (15, 1) and (n, 5).

Now, We know that;

The inverse variation is defined as,

⇒ y = k x

Here, An inverse variation includes the points (15, 1) and (n, 5).

Hence, Substitute x = 15, and y = 1;

⇒ 1 = k × 15

⇒ k = 1/15

And, Substitute x = n and y = 5;

⇒ y = k x

⇒ 5 = 1/15 × n

⇒ 5 × 15 = n

⇒ n = 75

Learn more about the proportion visit:

https://brainly.com/question/1496357

#SPJ5

N a certain​ year, the amount A of garbage in pounds produced after t days by an average household is given by Aequals 7.5t.

Answers

Answer:

The answer is below

Step-by-step explanation:

In a certain​ year, the amount A of garbage in pounds produced after t days by an average household is given by A = 7.5t.

Plot a graph for t > 0

how many days it will take to get 200 pounds of garbage.

Solution:

a) Let the time in days (t) be on the x axis and the amount of garbage (A) in pounds be on the y axis. Therefore:

At t = 0; A = 7.5(0) = 0

At t = 10; A = 7.5(10) = 75

The graph was plotted using the geogebra online graphing tool.

b) number of days require to get 200 pounds of garbage can be gotten by finding the value t for which A = 200. Therefore:

A = 7.5t

t = A / 7.5 = 200 / 7.5

t = 26.67 days

what is the range of the function f(x) =4^x+1 when the domain is {-1,0,3}

Answers

Answer:

(1,∞)

{y|y>1}

Step-by-step explanation:

i hope that this is what you are looking for^_^

This is just a fancy way your teacher saying that when you have an equation y=[tex]4^{x}[/tex]+1, what is y when x=-1,0,3.

We just need to solve by substituting the x in respectively.

x=-1, y=[tex]\frac{5}{4}[/tex]

x=0, y=1

x=3, y=65

Hope this helped! Any questions just put it in the comments.

I NEED HELPPPPP. SOMEONE ANSWER THISSSS

Answers

Answer:y=415 x = 21.5

Step-by-step explanation:

We can see 4x-37 = 49

4x = 86

x = 21.5

4(21.5) -3 = 83

Then we can see what the other side is because they are equal

y/5 = 83

83 x 5 = 415

y=415

The answer is Y= 415 X

Explanation

I WILL GIVE BRIANLIEST!!!!!!!!

Please, I really need to get these right because I’m redoing it for full credit and I have an F in math, help me with as many as you can but don’t guess because I really need this. Even if you see other people’s answers, please give me your feedback still.

You will have to zoom in to see this one.
It says :
Graph the linear function in questions 5 and 6.
Y= 1/3x - 4

Answers

The third one because rise/run and -4 is the y
The third one ( your welcome

24% students in a clan were absent in a day .If 38 students were present ,what is the total strength in the clan

Answers

Answer:

50 students

Step-by-step explanation:

24% students in a clan were absent in a day .

Hence, the Percentage of students present is calculated as:.

= 100 % - 24 %

= 76%

From the question, we know that:

If 38 students were present ,what is the total strength in the clan

The total strength of the clan = Total number of students. This is calculated as:

76% × x = 38 students.

76/100 × x = 38

76x /100 = 38

Cross Multiply

76x = 38 × 100

x = 3800/76

x = 50 students

PLEASE HELP ME ANSWER IF YOU HURRY ILL GIVE POINTSSSS

Answers

Answer:

3rd one and the 4th one

Step-by-step explanation:

Hopt it helps.....

Directions: Solve for x in the inequalities below. Graph and check your solution.
Problem
Graph
Check by Using Substitution
4x + 7 > -21














2x – 2 < -5














10x + 9 < -44







Directions: Solve for x in the inequalities below. Graph and check your solution.
Problem
Graph
Check by Using Substitution
4x + 7 > -21














2x – 2 < -5














10x + 9 < -44














-8x + 4 > -20






















-8x + 4 > -20

Answers

Answer:

hi

Step-by-step explanation:

Answer:thanks for 23 points

Step-by-step explanation:

Does this system have one
olution,
5x + 3y = 1
35x + 21y = 2
Choose the correct answer below.
o One solution
0 Infinitely many solutions
O No solution

Answers

Answer:

infinitely many solutions cuz in mathmatices any problem has solution

Can someone please help me on this and explain if you can!

Answers

Answer:

x = [tex]11\sqrt{2}[/tex]

y = [tex]11\sqrt{2}[/tex]

Step-by-step explanation:

the ratio of the sides of a 45 - 45 - 90 triangle is shown at the bottom of this answer.

as you can see, it is x:x:[tex]x\sqrt{2}[/tex]

The side given is x[tex]\sqrt{2}[/tex], so you have:

[tex]x\sqrt{2}=22[/tex]

divide both sides by [tex]\sqrt{2}[/tex]

x = [tex]22/\sqrt{2}[/tex]

multiply this by [tex]\sqrt{2} /\sqrt{2}[/tex]

[tex]x = 22\sqrt{2}/2[/tex]

[tex]x=11\sqrt{2}[/tex]

y is also equal so y = [tex]11\sqrt{2}[/tex]

WILL GIVE BRAINLIEST, please hurry!!!!

Answers

i’m pretty sure it is the last option. d.
THIRD ONE
CAUSE 8/10 X 4/5 IS 16/25 NOT 32/5

FREE PLEASE HELP
Question: Solve for x

Answers

Answer:

x+9_3

Step-by-step explanation:

13. SOLVE FOR X
21)
18
21
x+ 13
A) 8
C) 7
28
B) 11
D) 6

Answers

Well first go to 'Add Attachments' when your asking a question.

Click whatever file/photo that you wanna show us, and click done.

See?

Ta da~

John is painting a box that is shaped like a cube. 1/10 of a bottle of paint covers 2/5 of the box. How many cubes can he paint with 2 bottles of paint?

Answers

Answer:

8

Step-by-step explanation:

1/10 bottle of paint covers 2/5 of box

2 bottles of paint will cover x of box

Using cross multiplication :

1/10 = 2 / 5

2 = x

(1 / 10)x = 2/5 * 2

x / 10 = 4 / 5

Cross multiply :

5x = 40

Divide both sides by 5

x = 40/5

x = 8

Hence, 2 bottles of paint will be used to paint 8 boxes

Hey there, I really need help! I don't understand how to solve this. PLEASE HELP ME!!

Answers

Answer:

B

Step-by-step explanation:

Does the point (1, –9) satisfy the equation y = 3x − 6?

Answers

Answer:

No.

Step-by-step explanation:

Well, is the points (1, -9) does satisfy the equation y = 3x - 6. Then, substituting the values of x, and, y, into the equation y = 3x - 6,  we should get a true equation.

y = 3x - 6

-9 = 3 * 1 - 6

-9 = 3 - 6

-9 = -3.

So, the points (1, -9) does not satisfy the equation y = 3x - 6.

Spendthrift Steve found a splendid interest rate of 11.5% for his $2500 investment. If interest is
compounded contiuously, how much will Steve have after 4 years, when he needs the money for college?

Answers

Answer:

Step-by-step explanation They will have a 11.5 they have 2000 but you di511.5÷2

Find a solution to the linear equation −8x−y=24 by filling in the boxes with a valid value of x and y

Answers

Answer:

X= 24+7/8 | Y=  24-8x

Steps for answers:

For X:

1. Add y to both sides.

-8x=24+y

2. Divide both sides by -8.

x=-24+y/8

-----------------

For Y:

​1. Add 8x to both sides.

-y=24+8x

2. Multiply both sides by -1.

y=-24-8x

Done by NeighborhoodDealer :

You can buy six cans of root beer for $18. How much will she pay for 27
cans?

Answers

Answer:

162$$

Step-by-step explanation:

PLEASE HELP! GIVING POINTS :)!

Answers

Answer:

$20

20% of 25 is $5, therefore 20 - 5 would be the final cost of the hat

Plzzzzz help meee plz due today soon

Answers

Answer:

a

Step-by-step explanation:

Answer:

the answer is no. a.so ,please make sure u have given the right answer

Can somebody plz help answer all these questions (like what to add to solve it)
Thanks:3

WILL MARK BRAINLIEST WHOEVER ANSWERS THIS FIRST :DDD

Answers

18. 9
19. 5
20. 12
21. 8
22. 2
9,5,12,8,2...........

Scale on a map of Ireland is 1.2 000000 how many square centimetres are represented on the map by the province of Munster.

Answers

Question is incomplete, we will however explain how the scale works using examples

Answer and explanation:

Given the map scale 1:2000000, the fraction from this 1/2000000 is the representative fraction. The representative fraction is the ratio of distance on the map to the real distance on ground.

With the representative fraction 1/2000000, we can find how many meters on the ground is represented by a unit of measurement in centimeters on the map thus:

Given 1m= 100cm

Representative fraction broken down = 1/2×10000×100

Therefore 1cm on the map = 20000m on ground

what does 74% of 160
Equal

Answers

Answer:

Step-by-step explanation:

74% of 160 = 118.4

Answer:

118.4

Step-by-step explanation:

74/100 is 0.74

0.74 x 160 = 118.4

Hope this helps :)

432÷73 estimate by rounding the expression to relate ro one digit​

Answers

I don’t know sorry, i wanna help u

answer- 5.9

Step-by-step explanation:

divide 432 by 73

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