A bag contains 7 yellow marbles and 35 red marbles. If a representative sample contains 2 yellow ​marbles, then how many red marbles would you expect it to​ contain? Explain.

Answers

Answer 1

30 maybe, not to sure, sorry if its wrong


Related Questions

Radically reduce square root of 243

Answers

Answer: 9sqrt(3)

Step-by-step explanation:

First, we can prime factorize 243.

243 = 3^5

Therefore we are computing the square root of 3^5

3^5 = 3^4 * 3^1; 3^4 = (3^2)^2

Therefore, sqrt(3^5) = sqrt((3^2)^2))*3^1)

= 3^2*sqrt(3)

= 9sqrt(3)

This circle is centered at the origin, and the length of its radius is 4. What is
the circle's equation?

Answers

B) X^2+y^2=16
Hope this helps

what is the Area of the parallelogram

Answers

Answer:

55

Step-by-step explanation:

The Distance between (-2, -5) and (-2, 6) is 11 and the distance between (-2, 5) and (3, 5) [the altitiude] is 5. 11 x 5 is 55 so therefore the area is 55 :)

The answer would be 55 to your problem

A base is labeled on the triangle below. B. C 7 * base Which line segment shows the height that corresponds to the given base of the triangle?​

Answers

Answer: A

Step-by-step explanation:

Looks like A, since it's the altitude.

find the value of 16 to the power of 3/4

Answers

Answer:

8

Step-by-step explanation:

If we write this as an expression it looks like [tex]16^{\frac{3}{4} }[/tex]

Multiply the top number of the fraction by itself to find its square. Write the result and place the fraction line below it.

Grandma baked 1.5 times as many pancakes as waffles. After she baked 45 more waffles, and her grandchildren ate 12 pancakes, there were 17 more waffles than pancakes. How many waffles were there initially?
pls help fast

Answers

Answer:

80

Step-by-step explanation:

(x + 45) - (1.5x - 12) = 17

x + 45 - 1.5x + 12 = 17

-0.5x+57=17

-0.5x=-40

-40/-0.5=80

Directions: Determine the axiom that justifies each of the following statements.

1. 2( -a + 5) = (2)(-a) + (2)(5)

2. 2/5 ⋅ 1 = 2/5

3. (x + 5) + 2 = x + (5 + 2)


Answers

Answer:

distributive propertymultiplicative identity elementassociative property of addition

Step-by-step explanation:

1.

The distributive property of multiplication over addition tells you a factor outside parentheses will multiply each term inside parentheses. That fact is used to expand the given expression. In general, ...

  a(b +c) = ab +ac

  2(-a +5) = 2(-a) +2(5)

__

2.

The multiplicative identity element is the value that can multiply any expression and leave it unchanged. It is 1. That is, multiplying anything by 1 leaves it unchanged.

This fact is generally used to cancel factors common to a numerator and denominator: (2x)/2 = x(2/2) = x(1) = x, for example. It is also used extensively in units conversion.

__

3.

The associative property of addition lets you group the terms of a sum any way you like. It lets you move parentheses at will. (Beware subtraction.)

Here, the parentheses are moved from grouping the first two terms to instead grouping the last two terms.

_____

Additional comment

These are part of the vocabulary of math. Even if you don't remember the specific definitions, it is essential to remember what these properties allow. Making use of them is the way that expressions are simplified and equations are solved.

Answer:

Distributive Property of MultiplicationIdentity Property of MultiplicationAssociative Property of Addition

Step-by-step explanation:

Distributive Property of Multiplication

The distributive property of multiplication is to distribute or multiply one term by all terms.

2(-a + 5)     Distrbute 2 to -a and 52(-a) + 2(5)-2a + 10

Identity Property of Multiplication

Identity property is to multiply by 1. This doesn't change the value, so it keeps the value, identity, the same.

2/5 * 1 = 2/5

Associative Property of Addition

The associative property is to group terms differently, preferably like terms. 2 and 5 are like terms, because they are integers.

(x + 5) + 2x + (5 + 2)x + 10

-Chetan K

Dave buys a coat for £20, a hat for £15 and a pair of gloves for £5.


Later, he sells the coat at 50% profit. He sells the hat for £18 but has to sell the gloves at a 20% loss.


What is his overall percentage profit?

Answers

Answer:

30%

Step-by-step explanation:

Purchases:

Coat £20

Hat £15

Gloves for £5

Total amount of purchases: £20 + £15 + £5 = £40

Sales:

Coat at 50% profit: 150% × £20 = 1.5 × £20 = £30

Hat: £18

Gloves at a 20% loss: 80% of £5 = £4

Total amount of sales: £30 + £18 + £4 = £52

Amount of profit: £52 - £40 = £12

Percent of profit: £12 / £40 × 100% = 30%

Can anyone please help me out with this??? PLEASE AND THANK YOU

Answers

Answer:

(-2/3, 4)

Step-by-step explanation:

3x+2y=10

-12x-2y=-4

-9x=6

x=-6/9=-2/3

-2+2y=10

y=4

given that (x-2) is a factor of (x³-8) ,what is the other factor?​

Answers

Answer:

[tex]x^2+2x+4[/tex]

Step-by-step explanation:

This expression can also be written as a difference of cubes:

[tex]x^3-2^3[/tex]

A important formula to remember is:

[tex]a^3-b^3=(a-b)(a^2+ab+b^2)[/tex]

We can use this to factor this expression:

[tex]x^3-2^3=(x-2)(x^2+2x+4)[/tex]

Therefore the other factor is:

[tex]x^2+2x+4[/tex]

help i give 5 stars and a crown​

Answers

Answer:

false

Step-by-step explanation:

it cannot possibly be 180 because when you add up the other two together and then add 180 it is over 360 degrees

If line m bisects AB at point P, and if AP= 1/2 y and PB= y-2, then find AB

Answers

Answer:

the answer is twenty four

Pythagorean theorem Words Problems

Answers

Answer:

22.2 ft

Step-by-step explanation:

=) B² = H² - P²

=) B² = 32² - 23²

=) B² = 1024 - 529

=) B = 495 root sq.

=) B = 22.2 ft

The distance from O to A is 3 and the distance from A to A prime is 3. The diagram shows a dilation. Which dilation does it represent? What is the scale factor?.

Answers

The dilation which represented by the line is enlargement and the scale factor of dilation is 2.

What is the dilation of the figure?

Dilation of a figure, means the transformation of the figure. The factor by which the given figure dilated, called the scale factor of dilation.

The distance from O to A is 3. Therefore,

[tex]OA=3[/tex]

The distance from A to A prime is 3. Therefore,

[tex]AA'=3[/tex]

Here, the new length of the line segment is,

[tex]OA'=OA+AA'\\OA'=3+3\\OA'=6[/tex]

The scale factor of dilation is,

[tex]r=\dfrac{OA'}{OA}\\r=\dfrac{6}{3}\\r=2[/tex]

The scale factor is 2 and the image is enlarged.

Hence, the dilation which represented by the line is enlargement and the scale factor of dilation is 2.

Learn more about the dilation of the figure here;

https://brainly.com/question/3457976

Answer:

enlargement

2

Step-by-step explanation:

help with angle sum theorem please

Answers

All the angles in a triangle would add up to 180 which means that 2x would be 180-60-60 which is 60
If 2x is 60 then x is 30 degrees

The points (-5, r) and (2, 3) lie on a line with slope 2. Find the missing coordinate r.

Answers

Answer:

Step-by-step explanation:

I will use the formula for finding the slope of a line.

rise/run = y2 - y1/x2 - x1

3 - r/2 - -5

We will subtract 2 from -5. 2 - -5 = 7

Since the slope is 2, and 2 - -5 = 7, then 3 - r = 7x2 = 14.

3 - 14 = -11

r = -11

Please answer this right if you do I’ll give brainly please please please

Answers

Answer:

$2.25

Step-by-step explanation:

last year price = $3.00

this year price = $3.00 - (25% × $3.00)

= $3.00 - $0.75

= $2.25

x^2(x+2)(x+6)=0
What are the solutions to the equation?

Answers

Answer:

3 solutions

Step-by-step explanation:

x = 0; x = 2; x = -6

As we are given with an equation as follows :

[tex]{:\implies \quad \sf x^{2}(x+2)(x+6)=0}[/tex]

As product of these three factors is equal . So , any of these factor can be 0 as product is 0 only when one of the expressions which are multiplied is 0. So , 3 cases arises as follows ;

Case I :-

[tex]{:\implies \quad \sf x^{2}=0}[/tex]

On raising ½ power to both sides we have ;

[tex]{:\implies \quad \sf x=\pm \: 0}[/tex]

Now , as +0 and -0 have no difference in them . So , it's simply 0

[tex]{:\implies \quad \sf So\quad x=0}[/tex]

Case II :-

[tex]{:\implies \quad \sf x+2=0}[/tex]

[tex]{:\implies \quad \sf So\quad x=-2}[/tex]

Case III :-

[tex]{:\implies \quad \sf x+6=0}[/tex]

[tex]{:\implies \quad \sf So\quad x=-6}[/tex]

[tex]{:\implies \quad \bf \therefore \quad \underline{\underline{Hence \:\: x\in \{0,\: -6,\: -2\}}}}[/tex]

find the constant term of -8x-5x^4-1-x^5/9+8x^3
PLS HELP THXS

Answers

-1 and 9. Constants are numbers by there selves. with no symbol or exponent.

HELPPPPPPPPPPPPPPPPP Solve for w x and y

Answers

Step-by-step explanation:

opp angles are equal in kite

so x = 48°

bigger diagonal bisects smaller diagonal

w=1.6cm

take ∆rey

r= 90°

angle rye = 48°

90+48+y = 180

y= 90-48=42°

thx for your help on the other one now i need help on this one

Answers

I was about to point out that this seemed more like an English question but then I read the thing on the top left.

A) For a meal that cost nothing, starving people would line up for hours, even in the middle of Times Square.

A may be the answer.

B) All across the nation, starving people who couldn't buy food stood in breadlines for hours.

B is not the answer.

C) Millions of men and women were out of work and hungry during the Great Depression.

C is not the answer.

D) Breadlines in the Times Square provided free meals for hungry men and women.

D is not the answer.

The answer is A) For a meal that cost nothing, starving people would line up for hours, even in the middle of Times Square.

Let me know if this is the correct answer. :)

What is the solution set for this inequality?

-8x + 40

-16

Answers

i think it’s a positive

Please give me right answer fast need it by tonight

Answers

the answer is d like on the paper
The answer is 75 dollars, B. Please give brainliest if you can!

Choose the polynomial that is written in standard form. 2x2 3x4 10x6 4x4 6x3 10x4 −3x8 9x2 10x −7x6 x3 10x8.

Answers

The polynomial [tex]\rm -3x^8 +9x^2+ 10x[/tex]  is written in standard form. The correct option is C.

What is polynomial?

Polynomial is an algebraic expression that consists of variables and coefficients. Variable are called unknown. We can apply arithmetic operations such as addition, subtraction, etc. But not divisible by variable.

The standard form of the polynomial is given as

[tex]\rm a_o x^{n} + a_1 x^{n-1} + a_2 x^{n-2} + ...... + a_n x^{n-n}[/tex]

1.  [tex]\rm 2x^2 +3x^4 +10x^6[/tex] is not written in standard form.

2.  [tex]\rm 4x^4 +6x^3 + 10x^4[/tex] is not written in standard form.

3.  [tex]\rm -3x^8 +9x^2+ 10x[/tex] is written in standard form.

4.  [tex]\rm -7x^6 + x^3 + 10x^8[/tex] is not written in standard form.

More about the polynomial link is given below.

https://brainly.com/question/17822016

A shirt is on sale for 30% off the regular price. The regular price is $27.00.
What is the sale price?
$8.10
$18.20
$18.90
$18.80

Answers

30% off. Would be 18.90

Answer:

18.90

Step-by-step explanation:

Zachary invests $400 into an account that earns 3.5% simple interest for 5 years. He does not make any other deposits or withdrawals.

At the end of 5 years, Zachary invests the entire account balance into a different account that earns 5% simple interest. He leaves the money in the account for 2 years without making any additional deposits or withdrawals.

What is the new account balance at the end of 2 years?

Drag and drop values into the boxes to correctly complete the statements.

Zachary invests $Response area into the account that earns 5% simple interest. At the end of 2 years, the account balance is $Response area.

Answers

Answer:

Zachary invests $470 into the account that earns 5% simple interest. At the end of 2 years, the account balance is $517

Step-by-step explanation:

I took the test

The new account balance at the end of 2 years is $517.

Simple interest

5 years

Using this formula

I= (P+r×t)

Where:

I=Interest=?

P=Principal=$400

r=Interest rate=3.5%

t=Time=5 years

Hence:

I= ($400×0.035 x 5)

I= $70

2 years

I=Interest=?

P=Principal=$470

r=Interest rate=5%

t=Time=2 years

I=($470+0.05×2)

I=$47

New balance:

New balance=$400+$70+$47

New balance=$517

Inconclusion the new account balance at the end of 2 years is $517.

Learn more about simple interest here:https://brainly.com/question/2294792

a + c = 30
12a + 8c = 280

Answers

Answer:

a=10 and c=20

Step-by-step explanation:

This is a system of equations. I will solve using the substitution method.

a+c=30

12a+8c=280

Solving for a:

a+c-c=30-c

a=30-c

Substituting a into the second equation:

12(30-c)+8c=280

360-12c+8c=280

360-4c=280

-4c=-80

c=20

Substituting into the original equation:

a+20=30

a+20-20=30-20

a=10

To prove this answer is correct, I will plug the solutions back in to the original equation.

a+c=30

10+20=30

30=30, True

12a+8c=280

12*10+8*20=280

120+160=280

280=280, True

Therefore, a=10 and c=20.

What is another way of saying that Janelle can ride her bike at a rate of 15 kilometers per hour?

Answers

Answer:

Janelle can ride her bike at a rate of 9.32 miles per hour

Step-by-step explanation:

15 kilometers is 9.32 miles

1 yd² of soil containing 30% clay was mixed into 2 yd of soil containing 45% clay. What is the clay content of the mixture?​

Answers

Answer:

105% ?

Step-by-step explanation:

I'm not entirely sure if the 1 yard 'squared' is considered in the 30% but assuming it's not ... 1yd =30% 1yd^2=60% and 2yd=45% so 60%+45%=100%

(PLEASE HELP!) (IM GIVING GOOD POINTS!) Michaela buys 2 cartons of eggs at $1.58 a carton, 415 pounds of ground turkey at $6.99 a pound, and a jar of strawberry jam for $4.38. She gives the cashier four $10 bills.

How much change will Michaela receive?

Enter your answer as a decimal rounded to the nearest hundredths place, if necessary, like this: 4.25

Answers

Answer:

Michaela gets 3.45$ back.

Step-by-step explanation:

1 carton of eggs = 1.58$

she buys 2, so 2 times 1.58= 3.16$

1 pound of turkey = 6.99$

she buys 4.15 pounds, so 4.15 times 6.99= 29.01$

she buys a jar of jam for 4.38$

4.38 + 3.16 + 29.01 = 36.55$

4 times 10= 40

40 - 36.55 = 3.45$

Answer:

  $3.10

Step-by-step explanation:

The cost of the goods Michaela buys is ...

  2 cartons eggs at $1.58 per carton = $3.16

  4 1/5 pounds turkey at $6.99 per pound = $29.36

  1 jar of jam at $4.38 per jar = $4.38

The total is then ...

  $3.16 +29.36 +4.38 = $36.90

Four $10 bills will be $40, so the change is ...

  $40 -36.90 = $3.10

Michaela will receive $3.10 in change.

_____

Additional comment

We know that Brainly often mangles mixed numbers, so we have assumed that "415" is intended to be 4 1/5. If it is intended to be 4.15 pounds, then the price of the turkey, and the change, will be different by about $0.35. Michaela's change will increase by that amount.

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