There is a bag with only red marbles and blue marbles.

The probability of randomly choosing a red marble is 2/7







There are 16 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: 56

Step-by-step explanation:

Given that :

Marbles in bag are only red and blue ;

Probability of randomly choosing a red = 2/7

Number of red marbles in bag = 16

The total Number of marbles =?

P(choosing a red marble) = required outcome / Total possible outcomes

Required outcome = number of red marbles

Total possible outcomes = total number of blue and red marbles

Total number of blue and red marbles = x

P(choosing a red marble) = required outcome / Total possible outcomes

2/7 = 16 / x

Cross multiply

2x = 16 * 7

2x = 112

x = 112 / 2

x = 56 marbles

Total number of marbles = 56


Related Questions

Midterm plss helpppppp

Answers

Answer:

we conclude that:

[tex]g\left(x\right)\:-\:h\left(x\right)\:=\:2x^2\:-\:3x[/tex]

Step-by-step explanation:

Given

[tex]h(x) = -3x[/tex][tex]g\left(x\right)\:=\:2x^2[/tex]

We have to determine [tex]g\left(x\right)\:-\:h\left(x\right)\:=\:2x^2\:-\:3x[/tex]

so

[tex]g\left(x\right)\:-\:h\left(x\right)\:=\:2x^2\:-\:3x[/tex]

Thus we conclude that:

[tex]g\left(x\right)\:-\:h\left(x\right)\:=\:2x^2\:-\:3x[/tex]

What is the result of subtracting the second equation from the first?
8.x - 4y = -4
-3a + 4y = 5​

Answers

this is the answer with explanation

A box of candy had 4 cherry pieces for every 9 lemon pieces. If the box had 45 lemon pieces, how many cherry pieces would there be?

Answers

Answer:

20

Step-by-step explanation:

Does 6 equal to the absolute value of -6

Answers

Answer:

yes

Step-by-step explanation:

yes it does 6 = |-6|

on khan my progress wont go up and i need 50% and i have 44 help please

Answers

Answer:

watch 2 more videos

Step-by-step explanation:

Help!!! Whats The answer, Please explain your answer Marking brainlliest:D......

Answers

the answer would be 96 square feet length

6 x (4)^2 = 96

(this is only 7th-grade math!!) how to find the rates?
also sorry if some of the ones i put are wrong, i have a big headache rn and i cant focus on math

Answers

Answer:

i think under 3 1/2 its 87.50 and under the 4 its 100

Step-by-step explanation:

for every 1/2 hour he gets $12.50

i hope this is right :)

Asphere with a radius of 7 m. What is the volume of the figure? Round your answers to the nearest tenth, if necessary.
a
1436.8m
b
1026.6m
С
1834.9m3
d
11494m

Answers

Answer:

            a )   1436.8 m³

Step-by-step explanation:

R = 7 m

[tex]V=\frac43\pi R^3=\frac43\pi\cdot7^3=\frac{1372}3\pi\ m^3\approx1436.8\ m^3[/tex]

the perimeter of a rectangle is 62 m.

Answers

Answer:

c o n f u s i o n

Step-by-step explanation:

Uh... I dunno, sure, the perimeter of a rectangle is 62 m, I guess?

Help needed. 30 points to complete the table and do the second part.

Answers

Answer:

-4,-6,-8,-10

Step-by-step explanation:

I am not so sure though.

ASAP PLZ HELP ME with this

Answers

Answer:

40.9ft

Step-by-step explanation:

14+8+10+8.9 = 40.9

bottom side is 14 because the shape on the left is a rectangle so it will have 10 ft on the bottom as well as top that you have to add on top of the 4ft from the triangle.

What is the factored form of t6 − p3?

A.
(t2 + p)(t4 − pt2 + p2)
B.
(t − p)2(t2 − pt + p2)
C.
(t2 − p)(t4 + pt2 + p2)
D.
(t − p)2(t2 + pt + p2)

Answers

Answer:

(C). (t² - p)( [tex]t^{4}[/tex] + pt² + p²)

Step-by-step explanation:

a³ - b³ = (a - b)(a² + ab + b²)

[tex]t^{6}[/tex] - p³ = (t²)³ - p³ = (t² - p)( [tex]t^{4}[/tex] + pt² + p²)

Find the sale price of the item. Round to two decimal places if necessary.

Original price: $80.00
Markdown: 33%​

Answers

Answer:

24$

Step-by-step explanation:

FREE BRAINLEST Reagan has a rectangular bedspread that measures 238 centimeters by 435 centimeters. She wants to sew a fringe around the edge of the bed spring.



what length of ringe dose Reagan need to purchase=1346 centimeters



Reagan gets a new bedspread that is 27 centimeters longer.

what length of fringe dose reagen need for the longer beadspread?

Answers

Answer:

               I am only adding this so they can get the brainliest

                                            give it to them

Step-by-step explanation:

                            1400 cm                      They are correct!

           ~You could notify me, but they seem to know this more~

                                           Have a nice day!

                                                     ^ω^

-- XxFTSxX

Reagan needs to sew a 1346 centimeters fringe around the edge of the bed spring.

Given that, Reagan has a rectangular bedspread that measures 238 centimeters by 435 centimeters.

What is the perimeter of a rectangle?

The perimeter of a rectangle is the total distance of its outer boundary. It is twice the sum of its length and width and it is calculated with the help of the formula: Perimeter = 2(length + width).

Now, the perimeter = 2(238+435)

= 2×673

= 1346 centimeters

Therefore, Reagan needs to sew a 1346 centimeters fringe around the edge of the bed spring.

To learn more about the perimeter of a rectangle visit:

https://brainly.com/question/15287805.

#SPJ2

slope 3, y-intercept at -4 in slope intercept form

Answers

Answer:

[tex]y = 3x - 4[/tex]

Step-by-step explanation:

To set up a Slop intercept equation the formula is

[tex]y = mx + b[/tex]

mx being the slope

and b being the y-interecpt

Hope this helps!


WILL GIVE BRAINLIST IF CORRECT! DUE IN 10 MINS

December 10th . 2020


3. Write an equation for each line.

Answers

Answer:

y=4 x= undefined

Step-by-step explanation:

Answer:

red and green line are zero  blue and yellow are undefined

Step-by-step explanation:

what percent of 15 is 15% of 20​

Answers

Answer:

20 %

Step-by-step explanation:

15% of 20 is 3, and 3 is 20% of 15

a semigroup which has a left identity element and in which every element has a right inverse is a group

Answers

Element and in which every element has a right inverse is a group?

Now, If both the identity and the inverse are of the same side, this is simple. For, instead of the above, say every element has a left inverse. For a∈G denote this left inverse by a−1.

Then(aa−1)(aa−1)=a(a−1a)a−1=aa−1

and we can use the fact that

cc=c

⟹c=1

to get that inverses are in fact two-sided: aa−1=1

From which it follows that

a=1⋅

a=(aa−1)a=a(a−1a)=a⋅

1 as desired. But in the scenario given we cannot use cc=c⟹c=1, and I can see no other way to prove this.

To know more about Semigroup follow the given link below visit : https://brainly.com/question/13258417

#SPJ4

3x + 3-5> 4
this is my last straw

Answers

Answer:

x> 2 im not for sure though

Step-by-step explanation:

What are the solutions of 4x^2- x + 9 = 0 ?

PLEASE HURRY AND HELP ITS TIMED!!

Answers

Answer:

Hope this helps luv!

Step-by-step explanation:

There are no solutions. Copy and paste this for more help; 4x^2- x + 9 = 0

if you have an 90 in a class and took at test but got a 74 what is your new grade
I’m asking because I really want to know my grade for bio thank you
I will give you branlyist if you answer

Answers

Answer:

How must did your teacher say the test would take off but I would say a A- or B

Answer: i think it will be like a 87.81

Step-by-step explanation: pls mark this as braanlyest

Please help ! Write slope intercept form

Answers

Answer:

y=4/3x

Step-by-step explanation:

What is the slope of the line shown in the graph below?

Answers

Slope = (y2-y1)/(x2-x1)
The points: (2,0) and (0,3)
(3-0)/(0-2) = 3/-2 = -3/2
The solution is -3/2

Answer:

the slope is -1.5

hope this helps

PLZ HELP ME!!! THX :D

Answers

Answer:

x=6

MKL=37

Step-by-step explanation:

Answer:

Step-by-step explanation:

1. because U is between T and B

TU +UB = TB

2x+3x+1 =21

5x = 20

x= 4

mTU = 2x = 2*4 = 8

mUB = 3x+1 = 3*4 +1 = 12 +1 = 13

2.

m∠JKL = 59°

m∠MKL + m∠JKM = m∠JKL

5x+7 +2x+10 = 59

7x +17 = 59

7x = 59-17

x = 42/7 = 6

m∠MKL=5x+7 = 5*6 +7 = 30+7 = 37°

I need help asap someone please help me i dont understand this question so can someone help me

Answers

Answer:

we conclude that:

[tex]\frac{2p}{4p^2-1}\div \frac{6p^3}{6p+3}=\frac{1}{2p^3-p^2}[/tex]

Step-by-step explanation:

Given the expression

[tex]\frac{2p}{4p^2-1}\div \frac{6p^3}{6p+3}[/tex]

[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{b}\div \frac{c}{d}=\frac{a}{b}\times \frac{d}{c}[/tex]

[tex]=\frac{2p}{4p^2-1}\times \frac{6p+3}{6p^3}[/tex]

[tex]=\frac{2p}{4p^2-1}\times \frac{2p+1}{2p^3}[/tex]

[tex]\mathrm{Multiply\:fractions}:\quad \frac{a}{b}\times \frac{c}{d}=\frac{a\:\times \:c}{b\:\times \:d}[/tex]

[tex]=\frac{2p\left(2p+1\right)}{\left(4p^2-1\right)\times \:2p^3}[/tex]

cancel the common factor: 2

[tex]=\frac{p\left(2p+1\right)}{\left(4p^2-1\right)p^3}[/tex]

cancel the common factor: p

[tex]=\frac{2p+1}{p^2\left(4p^2-1\right)}[/tex]

[tex]=\frac{2p+1}{p^2\left(2p+1\right)\left(2p-1\right)}[/tex]

cancel the common factor: 2p+1

[tex]=\frac{1}{p^2\left(2p-1\right)}[/tex]

Expanding

[tex]=\frac{1}{2p^3-p^2}[/tex]

Thus, we conclude that:

[tex]\frac{2p}{4p^2-1}\div \frac{6p^3}{6p+3}=\frac{1}{2p^3-p^2}[/tex]

The corresponding sides of two similar triangles are 8 and 12. If the perimeter of the smaller triangle is 28, find the perimeter of the bigger triangle?
A. 38
B. 30
C. 54
D. 42

Answers

Answer:

D

Step-by-step explanation:

12•28 which is then divided by 8=42

What is the value of the expression 10(n-6) when n = 14?

Answers

Answer:

80

Step-by-step explanation:

10(n-6)

10(14-6)

10(8)

80

Answer:

80

Step-by-step explanation:

10(n-6)            Expression

10 ( 14 - 6 )      Replacing n with 14

10 ( 8 )            Solving the expression in the brackets

80                   Removing parenthesis

80!

If f(x)=3x^5+2x^4+5, then what is the remainder when f(x) is divided by x−1?

Answers

Answer:

The remainder is 10

Step-by-step explanation:

The find the remainder when f(x) divided by g(x), find the value of x when g(x) = 0, then substitute it in f to find the value of the remainder

∵ f(x) = 3[tex]x^{5}[/tex] + 2[tex]x^{4}[/tex] + 5

∵ f(x) is divided by x - 1

g(x) = x - 1

→ Equate g(x) by 0 to find x

∵ g(x) = 0

x - 1 = 0

→ Add 1 to both sides

∵ x - 1 + 1 = 0 + 1

x = 1

→ Substitute x in f by 1

∵ f(1) = 3[tex](1)^{5}[/tex] + 2[tex](1)^{4}[/tex] + 5

∴ f(1) = 3(1) + 2(1) + 5

∴ f(1) = 3 + 2 + 5

f(1) = 10

∵ The remainder is the value of f(1)

The remainder is 10  

If h(x) = −3x − 10, find h(−3).

Answers

Answer:

9

Step-by-step explanation:

h=-3

-3(-3)= 9

Answer:

h(-1)

h= -1

Step-by-step explanation:

A math test has 12 multiplication problems and 24 division problems.

What is the ratio value of multiplication problems to division problems?

Type your answer as a fraction in simplest form.

Answers

Answer:

12:24 = 1:2

Step-by-step explanation:

Since there are 12 multiplication problems, and 24 division problems, the ratio of multiplication and division problems are 12:24, now we need to put it in simplest form.

We need to find the highest number of which both are divisible by, 12 and 24 are both divisible by 12.

So 12÷12 = 1, and 24÷12 = 2, so 12:24 in simplest form is 1/2 or 1:2.

Answer:

1/2

Step-by-step explanation:

12 is half of 24. Therefore, the answer as a fraction in simplest form is 1/2.

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