Simon has a bag of marbles. Six are green marbles, four are red, two are blue and ten are black. If he selects one at random, the probability that it will be black is

Answers

Answer 1

The answer is 10/22
Because you have 22 marbles total once you add them all and you have 10 black marbles so the probability it will be black when you pull it out is 10/22

Related Questions

Translate into an algebraic expression:

The difference of the product of 5 and y and their sum.

Answers

subtract the product as 5y and 5+y is what you can simplify this to:

(5y) - (5+y)

Hope this helps!

My GCSE question for my friend
Plz help him and me

Answers

The answer is: "400 pizzas" .
____________________________________
Explanation:
____________________________________
For ham:
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[tex] \frac{20}{60} = \frac{2}{6} [/tex] = (2÷2)/(6÷2) = [tex] \frac{1}{3} [/tex] ,

{Note: Sample of "60" ; Refer to "20" for "ham" on the table.}.
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[tex] \frac{1}{3} *1200[/tex] = 400 .

{Note: "1200 students" at the school; as given in the problem.}.
________________________________________________________
The answer is: "400 pizzas".
_______________________________________________________
The assumption is that each student is gets to eat ONE WHOLE PIZZA for one's self ; or at least GAIN — or OBTAIN — ONE WHOLE PIZZA for oneself—each. If EACH STUDENT is going to "eat less", or "obtain" less"; or "be allotted"—LESS THAN ONE WHOLE PIZZA EACH; the answer: "400 pizzas" would decrease.
_______________________________________________________
{Note that there are no such specifications given in the problem; as such, I mentioned "one whole pizza each"; or "be allotted one whole pizza each" (that one could, for instance, take home the rest for ONESELF).}.
________________________________________________________

How do you write 0.917 in word form.

Answers

The word form of number 0.917 is,

⇒ 0.917 = Nine hundred seventeen thousandths

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The number is,

⇒ 0.917

Now, We can write the number in word form as,

Here, The number is,

⇒ 0.917

Thus, We get;

⇒ 0.917

⇒ Nine hundred seventeen thousandths

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Which fraction is equivalent to negative 2 over 3?

a.) 2 over negative 3
b.) negative 3 over 2
c.) negative 2 over negative 3
d.) 2 over 3

Answers

Answer: the awnser is c

how can you use Place value when using partial quotients?

Answers

The “partial quotients” strategy uses place value and lets students to form on multiplication facts with friendly numbers. Look at the problem 496 ÷ 4. There are three instances of a student’s method to answering 496 ÷ 4. We could say that example C is more effectual than the other two but it is vital to point out how the student is thinking on comprehending. The students can multiply 4 x 20 over and over again or use higher multiples of ten proficiently; they all touch the same solution. The “partial quotient” way will work with any division problem.

(see attachment below)

Given f(x) = 6 (1-x) what is the value of f (-8)

Answers

Thanks for the question!

f(x) = 6 (1 - x)
f(-8) = 6 (1 - (-8))
f(-8) = 6 (9)
f(-8) = 54

Hope this helps!

Charlie spends 3/4 hour exercising every morning. He spends 1/6 hour weight training and the rest of the time running on the treadmill. What fraction of a hour does Charlie spend.

Answers

he spends 45 minutes exercising 1/6 of an hour or 10 minutes of weight training and the rest of the time on the treadmill and that is 35 minutes or 7/12 of an hour. Hope this helped!

A 25-N net force is applied to a rolling cart and produces an acceleration of 5 m/s2.What is the cart's mass

Answers

Remember that Force= mass*acceleration.
Plug in the known values

25 = m* 5

Divide both sides by 5
5= m

Final answer: The mass is 5 kg

The mass of the cart is 5 kg

The calculation can be done as follows

Force= 25 N

Acceleration= 5 m/s²

The mass can be calculated as follows

Force= mass × acceleration

25= mass × 5

mass= 25/5

= 5 kg

Hence the mass of the cart is 5 kg

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the elkwood aquatic society is working wirh various reptiles species to increase their populations. in their latest effort , the initial population of 450 endangered tutles triplied each year for the past five years

Answers

(450 x 3)(3)(3)(3)(3)

Answer: Hi!, i guess you want to know the final number of turtles.

if the original number is 450 and they triplied in one year, then after the first year you have 450*3= 1350 turtles.

this process happens for 5 years, it means that the turtles triplied 5 times, you can write this as: [tex]450*3*3*3*3*3 = 450*3^{5} =109350[/tex]

So, at the end, they had a lot of turtles.

3:7ratio of blue and red chairs if there are 91 red chairs how many blue are there?

Answers

There are 39 blue chairs.

You can find this by setting up a proportional equation:

3/7 = x/91

Solve for x by cross-multiplying:
7x = 91*3
7x = 273
7x /7 = 273 /7
x = 39

So, there are 39 blue chairs if there are 91 red chairs.

Amanda's age is one-half of Sally's. Which variable expression represents Amanda's age? 2s 1 2 +s s + 2 s 2

Answers

The answer is s^2 squared to the second power

Amanda's age, being one-half of Sally's, is represented by [tex]$\frac{s}{2}$[/tex], where s represents Sally's age.

Amanda's age is stated to be one-half of Sally's age. In algebraic terms, if we let s represent Sally's age, then Amanda's age can be expressed as half of Sally's age, which is [tex]$\frac{s}{2}$[/tex]. So, the expression [tex]$\frac{s}{2}$[/tex] accurately represents Amanda's age in terms of Sally's age.

Complete Question:

Amanda's age is one-half of Sally's.

Which variable expression represents Amanda's age?

A.[tex]$\frac{s}{2}$[/tex]

B.[tex]$\frac{1}{2}+s$[/tex]

C.2s

D.s+2

what is 78/100 as a fraction

Answers

78/100 or 39/50 if 78/100 is divided by 2 it's 39/50

If you divide it to 2, it will be 39/50.

Find the square (2x-6)^2

Answers

(2x-6)(2x-6)
4x^2 - 12x - 12x + 36
4x^2 - 24x + 36

hope this helps . give brainliest
thanks

Answer:

4x^2 - 24x + 36

Step-by-step explanation:

The sum of two numbers is 125 and their difference is 47 . What are the two numbers

Answers

x + y = 125
x - y = 47
---------------add
2x = 172
x = 172/2
x = 86

x + y = 125
86 + y = 125
y = 125 - 86
y = 39

ur 2 numbers are 39 and 86

39 and 86 : ) ^^^^******

Find the quotient of 812.30 divided by 83. Round to the nearest tenth.

Answers

812.30/83 = 9.78674698.....
Nearest tenth means one number under decimal place so...

812.30/83 ~ 9.8

Explanation: The 9.7... rounded up to 9.8 because the number after the tenths place (in this case the number after the 7) is greater or equal to 5.

11-1\2y=3+6x Solve for y

Answers

Let's solve for y.

11−12y=3+6x

Step 1: Add -11 to both sides.

−1/2y+11+−11=6x+3+−11

−12y=6x−8

Step 2: Divide both sides by (-1)/2.

−1/2y−1/2=6x−8/-1/2

y=−12x+16

Transformation enlargement
How to find the scale factor tho ?

Answers

We'd need to figure out the side of the bigger pentagon, which is going to be messy, but we can do it!

The area of a pentagon equation is messy, and we need to solve for the side given the area, which would be sqrt((4*area)/((5(5+2sqrt(5)))^(1/2)) or sqrt((4*8)/((5(5+2sqrt(5)))^(1/2)) . We get this from the pentagon equation, multiplying both sides by 4 dividing (5(5+2sqrt(5)))^(1/2)) from both sides, then square rooting that to get the side length

Plugging it in, we get 2 and some more, and we multiply that by 2 to get the bigger side length. Plugging that into the area equation, we get a=32 and 32-8=24

How do you do: x/6 - x/7 = 1

Please explain!

Answers

x/6 - x/7 = 1

6*7 =42

x = 42

42/6 = 7

42/7 = 6

7-6 =1

Can someone plz help me.

Answers

It seems like its more towards C. and D. but I have a strong feeling it's C. since he did it without looking.

7=14x-42y solve equation for y

Answers

y = x/3 - 1/6 not sure if thats correct though so sorry if you get it wrong :/

there were twice as many carnation as roses in a flower shop. After selling 50 carnations and 10 roses, there were 3 times as many roses as carnations left in the shop. how mny roses were in the shop?

Answers

60 carnations to start with 40 roses to start with. 60- 50= 10; 40- 10=30 so the roses are 3 times as much as the carnations.

Math help please!
1. The data set below shows the weight (in pounds) of 5 different pumpkins. What is the mean of the following set of data? 7,5,9,5,12
2. Mariah took 4 quizzes in her class during the past month. Her scores were 92, 94, 100, and 83. What was her mean quiz score?
92.25
93.5
93.75
94.75

Answers

1. The answer for the first question is 7.6 You get the answer by adding all the numbers together then dividing the answer you get by the number of items in this case there were 5 different numbers. This is how you get the mean.
2. The answer is 92.25

What is the value of z?

Enter your answer in the box.
_____
|____|

Answers

62+95=157 180-157= 23 z=23.

All angles must add up to 180 degrees, so 62 + 95+ z = 180°
= 157 + z = 180°
= z= 180 - 157
= z= 23°

Can someone help me to solve this questions?

Answers

Is it 90-9^2=9? I'm guessing

he got it right ^^^^^

Which number rounds down when rounded to the nearest tenth?
A. 59.88
B. 74.27
C. 98.94
D. 100.06

Answers

The answer would be C. 98.94
If the number is below 5 you round down. If the number is 5 or more you round up. So, the number 98.94 would round down because we are to round down to the tenths and the number 4 is next to 9 so we round down.

How can you write 3 million using exponents

Answers

3×10^6
That's how you could right it that way

3x10~6 would be the answer.

Dr. Wong can see 9 patients in 2 hours. At this rate, how long would it take her to see 72 patients?

Answers

It will take Dr .Wong 16 hours to see 72 patients.

in case you need to show work:

72/9=8 72 divided by 9 equals 8

2x8=16hrs you multiply the 8 nd the 2 hours and you get 16.

explain the difference in meaning between |-3| and -3

Answers

| -3 | and -3

the absolute value of a number is just how many spaces that number is from 0. So it is not negative because distance is not measured in negative values.. The absolute value of a number is positive. So |-3| = 3.

-3 just equals -3.

so the difference, I guess, is that -3 is negative but the absolute value of -3 is positive

The number is positive when measured in absolute value. So |-3| = 3. since distance cannot be calculated in negative quantities.

What is the number?

A number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56, etc. are the numbers.

It is given that:

Two numbers are given:

|-3| and -3

As we know, the mod function has positive range.

Let f(x) = |x|

The range of the function is [0, ∞)

The value of |-3| will be 3 after removing the mod which is also called the absolute value of the mod function.

A number's distance from zero, or its absolute value, is expressed as the number of spaces.

Since distance cannot be calculated in negative quantities, it cannot be negative. A number is positive when measured in absolute value. So |-3| = 3.

Thus, the number is positive when measured in absolute value. So |-3| = 3. since distance cannot be calculated in negative quantities.

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Solve for x, Show your work: 1/2 (16 - x) = -12 (x + 7)

Answers

You have to get rid of 1/2 by multiplying it by its recriprocal which is like this:
1) 1/2 x 2/1 which equals to zero and you do the same to the other side.
2) -12 x 2/1 = -24x then multiply-24x with 7 which equals -168.
16-x= -24x -168
3) subtract 16 to the other side and subtract 24x with x
23x= -184
4) divide by 23 to isolate x and you get -8
5) x=-8

First you need to multiply 1/2 by 16, then multiply 1/2 by x to get 8-1/2x=-12(x+7). Then you multiply-12 by x to get-12x an then you multiply-12 by 7 so your equation looks like this 8-1/2x=-12x+-84. Combine the like terms and divide by the number with the x and you have your answer

Over 25.5 days, a pond's water level changed by an average of −0.32 centimeter each day. What was the total change in the water level?

Answers

8.16 cm is the total change in water level.

Answer:

-8.16

Step-by-step explanation:

i did the test and that other person that said 8.16 forgot the negitive sign

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