Where are white blue and red boat in the Marina three fourths of the boats in the Marina are white for seventh of the remaining boats are blueAnd the rest are red if there are nine boats how many boats are in the Marina?

Answers

Answer 1

Answer:

28

Step-by-step explanation:

Here is the complete question used in answering this question :

Three-fourths of the boats in the marina are white. 4/7 of the remaining boats are blue , and the rest are red . If there are 9red boats, how many boats are in the marina?

We first have to determine the fraction of the boats that are red

1 - ([tex]\frac{3}{4}[/tex] + [tex]\frac{4}{7}[/tex])

1 - [tex]\frac{21 + 16}{28}[/tex]

1 - [tex]\frac{37}{28}[/tex]

1 - 1[tex]\frac{9}{28}[/tex]

= 9/28

so, 9/28 of the boats are red

let b represent the total number of boats

9/28 x b = 9

to find b, divide both sides of the equation by 28/9

b = 28


Related Questions

Some biology students were checking eye color in a large number of fruit flies. For the individual fly, suppose that the probability of white-eyes is 1/4 and the probability of red-eyes is 3/4. We may treat these observations as independent Bernoulli trials. what is the probability that at least 3 flies have to be checked for eye color to observe a white-eye fly?

Answers

Answer:

0.5625 = 56.25% probability that at least 3 flies have to be checked for eye color to observe a white-eye fly.

Step-by-step explanation:

A sequence of independent Bernoulli trials is the binomial probability distribution.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

What is the probability that at least 3 flies have to be checked for eye color to observe a white-eye fly?

This is the probability of no white-eyes during the first two flies, that is, [tex]P(X = 0)[/tex] when [tex]n = 2[/tex]

Probability of white-eyes is 1/4

This means that [tex]p = \frac{1}{4} = 0.25[/tex]

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 0) = C_{2,0}.(0.25)^{0}.(0.75)^{2} = 0.5625[/tex]

0.5625 = 56.25% probability that at least 3 flies have to be checked for eye color to observe a white-eye fly.

I mark brainliest 5+5

Answers

Answer:

5+5 is 10 lol but thanks I guess

what's 1+1 plese my mom is going to tak away my tablet and I'll even mark yo branlyist​

Answers

Answer:

2

Step-by-step explanation:

Imagine you have 1 cookie, and then you have another cookie.

1 cookie and then another cookie is 2 cookies.

1/tanA-1/tan2A=cosec2A​

Answers

Answer:

we have to prove it or solve it

Find the approximate area of the triangle.

30 square

15 square

21 square

45 square

Answers

Answer:

A

Step-by-step explanation:

Hard to explain xD

HELPPPPPPPPPPPPPPPPPP

Which mechanical waves need a medium to travel through?

Question 3 options:

electromagnetic waves only


mechanical waves do not require a medium to travel through


transverse and surface waves


all mechanical waves need a medium


surface waves only

Answers

Answer: transverse and surface waves

Step-by-step explanation:

If point B has coordinates (-8, 1), what are the coordinates of the point when it is reflected across the y-axis?

Answers

Answer:

(8,1)

Step-by-step explanation:

When flipping across the y axis, the y coordinate stays the same, while the x coordinate changes it's sign.

(x,y) - > (-x,y)

(-x,y) -> (x,y)

what is the value of x?
2
3
6
7​

Answers

Answer:

A. 2

Step-by-step explanation:

Given:

DC = 1

CE = x + 4

AB = 11

BE = x + 1

Required:

Value of x

Solution:

(DC + CE) × CE = (AB + BE) × BE

(1 + x + 4) × (x + 4) = (11 + x + 1) × (x + 1)

(x + 5) × (x + 4) = (x + 12) × (x + 1)

x² + 4x + 5x + 20 = x² + x + 12x + 12 (distributive property)

x² + 9x + 20 = x² + 13x + 12

Collect like terms

x² - x² + 9x - 13x = - 20 + 12

-4x = -8

Divide both sides by -4

x = -8/-4

x = 2

Answer

A.2 edg 2021

Step-by-step explanation:

giving brainliest !! *easy*

Answers

Answer:

25

Step-by-step explanation:

25

Please Help Timed Question. Picture provided below.

Answers

Answer:

17.67 mpg

Step-by-step explanation:

The fuel efficiency is given by :

[tex]\eta=1.437+0.541\times s[/tex]

We need to find the fuel efficiency for a speed of 30 mph

Put the value of s equals 30 mph in the above equation.

[tex]\eta=1.437+0.541\times 30\\\\\eta=17.67\ mpg[/tex]

So, the required fuel efficiency is equal to 17.67 mpg.

The water depth of a pond is initially 36 inches and decreases at a rate of 0.2 inches per day through evaporation. Write a linear function that represents the depth of the pond at a given time.

Answers

Answer:

36-0.2d

Step-by-step explanation:

d refers to the number of days

This should work for your question if not I'm very sorry

The required expression for the decreasing depth of the pond is y = 36 - 0.2x, Where y is the depth of the pond after x days.

What is the equation?

The equation is the relationship between variables and constants represented as y = ax + b  is an example of a polynomial equation.

Here,
The water depth of a pond is initially 36 inches
The water depth of a pond decreases at a rate of 0.2 inches per day through evaporation.
Let the number of the days be x , and the depth left be y
According to the question,
Total depth in x days = 0.2x
Total remaining depth = 36 - 0.2x
or
y = 36 - 0.2x

Thus, the required expression for the decreasing depth of the pond is y = 36 - 0.2x, Where y is the depth of the pond after x days.

Learn more about equations here:

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Solve 28,490-478.29

Answers

answer is : 28,011.71
28,490 - 478.29 = 27,991.71

what is bigger 1 yard or 35 inches

Answers

1 yard since 1 yard is 36 inches and 35 inches is less than 36 inches

Answer:

Step-by-step explanation:

1 yard has 3 feet

1 foot has 12 inches

3 feet have 3 * 12 = 36

36 is greater than 35

1 yard is greater than 35 inches.

The half-life of Palladium-100 is 4 days. After 24 days a sample of Palladium-100 has been reduced to a mass of 7 mg.

A.) What was the initial mass (in mg) of the sample?


B.) What is the mass (in mg) 4 weeks after the start?

You may enter the exact value or round to 4 decimal places.

Answers

9514 1404 393

Answer:

  A) 448 mg

  B) 3.5 mg

Step-by-step explanation:

24 days is 24/4 = 6 half-lives. That is, the mass of 7 mg is 2^-6 times the initial mass.

A) The initial mass is 2^6×(7 mg) = 448 mg

__

B) 4 weeks is 28 days, or 7 half-lives. The remaining mass will be half the amount after 6 half-lives.

  (7 mg)/2 = 3.5 mg . . . . remaining after 4 weeks

Can someone help me with the answers to these questions and possibly explain? I’d really appreciate it!

Answers

Answer:

1.010) 60

Step-by-step explanation:

Since the opposing side measures 60 degrees, angle m<3 has to also be 60 (the fornonia law of geometry).

A solid sphere is cut into 8 equal wedges. The volume of each wedge is
V= dor? Solve the formula for r.
O A. r =
6V
B. r = 6V – 7
O c. r= = v
OD. r= 16V (11)

Answers

Answer:

A) r=∛(6v)/[tex]\pi[/tex]

Step-by-step explanation:

v=1/6[tex]\pi[/tex]r³

v÷1/6=[tex]\pi[/tex]r³

(when dividing by a fraction, invert and multiply)

6v=[tex]\pi[/tex]r³

6v÷[tex]\pi[/tex]=r³

(6v)/[tex]\pi[/tex]=r³

take the cube root of both sides

∛(6v)/[tex]\pi[/tex]=∛r³

∛(6v)/[tex]\pi[/tex]=r

ANSWER FAST PLEASE

h(1) = -2
h(n) = h(n − 1) +n
h(2) =

Answers

Use papa math you might have to use different letters but it helps a lot :)

Megan wants to spend no more than $300 planning a party. She spent $75 on food and wants to buy decorations that are $10 each. How many decorations can she buy​

Answers

Answer:

Step-by-step explanation:

10x + 75 ≤ 300

10x ≤ 225

x ≤ 22.50 on decorations

Simplify (3/5x-5)(3/5x+5)

Answers

Answer:

9/25x^2 -25

Step-by-step explanation:

Jessie types at the rate of 3 pages every 20 minutes. Find the time it would take Jessie to type a 12 page essay

Please note that this is directly proportional applications and the formula is output unit/input unit times input unit

Answers

Answer:

80 min or 1 hour and 20 min

Step-by-step explanation:

3 pages ⇔ 20 min12 pages ⇔ x min

Cross= multiply and solve for x:

3x = 12*203x = 240x = 240/3x = 80 min = 1 hour and 20 min

EXAMPLE How many inches are in 6 miles? (1 mile=5280 feet, 1 foot=12 inches)

Answers

1 foot 12 inches
5280 feet X inches
X=12•5280
X=63,360 inches

X inches 6 miles
63,360 inches. 1 mile
X=63,360•6/1
X=380,160 inches

There are 380,160 inches in 6 miles

Please help asap pretty easy question just stuck

Answers

Answer:

Circle Pentagon Triangle Rectangle

Select the expression that represents the following statement: add 24 to the quotient of 16 and 8.

a. 16 x 8 + 24
b. (16 ÷ 8) + 24
c. 24 − 8 + 16
d.(16 − 8) + 24

Answers

Answer:

Change the minus sign to a plus. 2. ... 24. = 8. 11. 24. Find each quotient. 1. 1. 3. 1. 6. 2. 5. 8. 1. 16. 2. 1. 3 x. 6. 1 = 6 ... Write a variable expression to represent the word phrase.

The correct expression for the given condition is,

⇒ (16 ÷ 8) + 24

What is an expression?

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

We have to given that;

The algebraic expression is,

''add 24 to the quotient of 16 and 8.''

Now, We can write the expression as;

Quotient of 16 and 8 is,

⇒ 16 ÷ 8

And, Add 24 to the quotient of 16 and 8.

⇒ (16 ÷ 8) + 24

Thus, The correct expression for the given condition is,

⇒ (16 ÷ 8) + 24

Learn more about the mathematical expression visit:

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Solve the equation of N+5/-16=-1

Answers

Step-by-step explanation:

N + 5 = -1

-16

N = - 1 + 5

16

N = -16 + 5

16

N = -11

16

N = -0.6875 = -0.7

given. Round
The first three terms of a sequence are
to the nearest thousandth (if necessary).

1 , 5/4 , 25/16 find the 7th term.

Answers

Answer:

[tex] \frac{15625}{4096} [/tex]

Please give me the correct answers​

Answers

Answer:

x = 25°

y = 25°

Step-by-step explanation:

✔️(x + 35)° + 30° + 90° = 180° (sum of triangle)

x + 35 + 30 + 90 = 180

Add like terms

x + 155 = 180

x + 155 - 155 = 180 - 155

x = 25°

✔️(y + 30)° + 35° + 90° = 180° (sum of triangles)

y + 155 = 180

y = 180 - 155

y = 25°

plzzzzzzzzzzzzzzzz SOLVE THE PIc

Answers

Answer:

The area is 72.

Step-by-step explanation:

2 * 6 = 12

6 * 10 = 60

60 + 12 = 72

Hope this helped! Have a nice day! Plz mark as brainliest!!!

-XxDeathshotxX

Answer:

72 units squared

Step-by-step explanation:

6x2=12

10x6=6

60+12=72

A block of land was available for sale last year at $35,000.
a) if the inflation rate during the year was 3.2%, what would be the value of the land in this year?

b)if the inflation rate this year is reduced 2.7%, what price would the land attract next year??​

Answers

Answer:

- $36,120

- $35,945

Step-by-step explanation:

This problem is rather pretty simple when breaking it down. We really just need to ask ourselves what the percent is of our whole and then add that to our total. Work shown below.

Step 1:

Move decimal over on both. You should get...

.032 and .027

(You always move it two to the left in these types of cases.)

Step 2:

Multiply our original price by inflation decimal. You should get...

$35,000 x .032 = $1,120

$35,000 x .027 = $945

Step 3:

Add our previous answer to our original price. You should get...

$35,000 + $1,120 = $36,120

$35,000 + $945 = $35,945

- This is our final answer, as the pricing increased due to inflation.

Note: Inflation means their is an increase in price.

Let me know if a further explanation is needed.

help please I need to pass​

Answers

9514 1404 393

Answer:

  33.49 ft³

Step-by-step explanation:

Use the formula for the volume of a sphere and fill in the given numbers. After that, it's all arithmetic. A calculator is usually helpful.

   [tex]V=\dfrac{4}{3}\pi r^3\\\\V=\dfrac{4}{3}(3.14)(2\text{ ft})^3=\dfrac{(4)(3.14)(8)}{3}\text{ ft}^3\\\\=\boxed{33.49\text{ ft}^3}[/tex]

Which rule should be applied to reflect f(x)=x^3 over the line y=x?​

Answers

Answer:

if y=x

than f(x)=x³

be

f(y)=y³

Answer:

y = x

f(x) = x³

f(y) = y³

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