can someone help me on this

The speed of the ship is the distance travelled divided the time taken to reach the shore here the answer will be 677/8 = 84.625km/hr.

The given sum is basically a sum of time distance and speed . here we are provided with the distance and the time taken for the ship and we are asked to calculate the speed of the ship. We know the formula that Distance = speed*time so from this formula we can calculate the speed of the ship that is : speed = distance/time taken ,

we are provided with the distance = 677km and the time taken to cover that distance is 8hrs .As we have the necessary information we can now calculate the speed of the ship with which it covered the distance of 677km in a time span of 8 hours.

according to the question :

distance = 677 km

time taken = 8hour

∴ speed=distance/time

= 677/8 = 84.625km/hr

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Answer:

87.5%

Step-by-step explanation:

28/32=0.875

0.875*100= 87.5

87.5% of 32 = 28

Answer:

10×4 = 40

Given,

already travelled 15 miles

so,

40+15

55 miles

Therefore, The It travels 55 miles

I don't whether it's right or wrong

The numbers are 13 and 3.

Let the numbers be x and y. Equation representing difference of these numbers-

x - y = 10 : equation 1

Equation representing product of these numbers- x × y = 39 : equation 2

Rewriting the equation 2 in terms of y

y = 39/x : equation 3

Keeping the value of y from equation 3 in equation 1

x - 39/x = 10

Multiplying the equation by x

x² - 39 = 10x

Rearranging the equation

x² - 10x - 39 = 0

Factorising the equation

x² - 13x + 3x - 39 = 0

x(x - 13) +3 (x - 13) = 0

(x + 3) (x - 13) = 0

Value of x = 13 and -3

Taking positive value of x

Keeping value of x in equation 3

x = 13

y = 39/13

y = 3

Hence, the numbers are 13 and 3.

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The cost of hot dogs are 1.25 and the cost of hamburgers are 1.50.

Let x=hot dogs a/

Let y = hamburgers

x + 7y = 11.75

x + y = 2.75

Subtract the second equation from the first.

x + 7y = 11.75

-(x + y = 2.75)

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

      6y = 9.50

     divide by 6

       y = 1.50

Substitute the y value in the simplest equation to solve for  x

x +   y   = 2.75

x + 1.50= 2.75

   -1.50   -1.50

x = 1.25

Hot dogs are 1.25 and hamburgers are 1.50.

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At a concession stan,one hot dog and one hamburger cost $2.75, one hot dog and seven hamburgers cost $11.75. Find the cost of one hot dog and one hamburger

Answer:

#C

Step-by-step explanation:

I am almost 95% positive it's C because if you look at the Isosceles shaped diagram.

Answer:

A

Step-by-step explanation:

He increased by 10% because of 80% to 90% is 10%

So, the Answer  is A

Answer:

12.5%

Step-by-step explanation:

The question is asking for the percent increase of 80%. So how much of 80% was the new percentage (90%) increased by.

First, find the difference 90-80=10

Then find the percent of 80 that the difference is.

10/80=0.125

0.125 in a percent form is 12.5%

So, there was a 12.5% increase.

The value of cotθ where θ is in fourth quadrant is [tex]-\frac{5}{\sqrt{171} }[/tex]  which is option (A).

It is given that cosθ = 5 /14 .        ....(1)

As we know that cosθ  = Base / Hypotenuse     ...(2)

On comparing equation (1) and (2) , we get

Base = 5 and Hypotenuse = 14

Using Pythagorean theorem , we get

          Hypotenuse² = Perpendicular² + Base²

                   14²   = P² + 5²

                   196 = P²  +25

                    171 = P²

                   ± [tex]\sqrt{171}[/tex] = P

Then , cotθ = Base / Perpendicular

                   = ±[tex]\frac{5}{\sqrt{171} }[/tex]

As in fourth quadrant cotθ is negative so cotθ will be negative.

So , we will consider the negative value .

  Cotθ = - [tex]\frac{5}{\sqrt{171} }[/tex]

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Answer:

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

Step-by-step explanation:

[tex](f \circ g)(x)=f(g(x)) \\ \\ =f(x+1) \\ \\ =2(x+1)^2 \\ \\ =2(x^2+2x+1) \\ \\ =2x^2+4x+2[/tex]

Answer:

the other answer is right mark them as brainliest!!!

Step-by-step explanation:

The probability that a defective product was found by the first inspector is 80% since the first inspector catches 80% of the defectives.

Probability is a linear scale measurement of the likelihood of an outcome occurring out of many possible outcomes.

Probability refers to the chance that something or an event happens when other events could have occurred.

Probability is measured in percentages, fractions, or decimals.  The probability of an outcome does not exceed one.  When it is one, it shows that the event is certainly going to happen.

Percentage of defectives found by the first inspector = 80%

Percentage of defectives not found by the first inspector = 20% (1 - 80%)

Percentage of defectives not found by the second inspector = 40%

Percentage of defectives found by the second inspector = 60% (1 - 40%)

Thus, the probability that a defective product was found by the first inspector is 80% since the first inspector catches 80% of the defectives.

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Answer: It does not matter.

Step-by-step explanation:

Its because of the commutative property.

Answer: Cecil’s weight is the sum of Alan's weight and Bruce's weight.

Alan’s weight in terms of Dylan's weight is 2d + 3.

Bruce’s weight in terms of Dylan's weight in 3d − 12.

So, the expression for Cecil’s weight in terms of Dylan’s weight is (2d + 3) + (3d − 12).

Answer:

12%

Step-by-step explanation:

Original = $874,990

New = $769,991

874,990 - 769,991/874,990

104,999/874,990

0.12

Turn to percentage

0.12 * 100

= 12%

Answer:

12%

Step-by-step explanation:

Given:

Percent change formula

[tex]\sf percent\:change=\left|\dfrac{final\:value-initial\:value}{initial\:value} \right|\times 100[/tex]

Substitute the given values into the formula:

[tex]\begin{aligned}\implies \sf percent\:decrease & = \sf \left|\dfrac{769991-874990}{874990} \right|\times 100\\& = \sf 0.1200002286 \times 100\\& = \sf 12.00002286... \\& = \sf 12\% \end{aligned}[/tex]

Therefore, the Percent of Decrease (markdown) to the nearest percent is 12%.

The mean number of unused vacation days is 8.64.

Mean is the average of a set of numbers. It is determined by adding the numbers together and dividing it by the total number.

To find the mean of the unused vacation days, find the midpoint of the upper and lower boundary and then multiply by its respective frequency and divide the sum by the sum of frequency.

Days  Frequency  Mid point               (mid point x frequency)

1 - 3         1               (1 + 3) / 2 = 2          (2 x 1) = 2

4 - 6        22           (4 + 6) / 2 = 5          (5 x 22) = 110

7 - 9         14           (7 + 9) / 2 = 8          (8 x 14) = 112

10 - 12        2          (10 + 12) / 2 = 11       (11 x 2) = 22

13 - 15       17           (13 + 15) / 2 = 14     (14 x 17) = 238

Sum         56                                                          484

Mean - 484 / 56 =  8.64                                        

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Answer:

cube root is what number can go into it 3 times

Step-by-step explanation:

for example, the cube root of 27 is 3, because you can times 3x3x3 and get 27. Another example is the cube root of 125 is 5, because you can times 5x5x5 and get 125.

The required length of the side is in the form of the cube root of the box is side = ∛volume.

Given that,
To write the edge length of Alistair's box using cube root.

Volume is defined as the ratio of the mass of an object to its density.

Here,

Assuming the box as a cube,
The volume of the cube = Side³
Volume = side³
side = ∛volume

Thus, the required length of the side is in the form of the cube root of the box is side = ∛volume.

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2x+4y=450

2x=450-4y

x=450-4y÷2----- equation 1

4x+2y=420

4x=420-2y

x=420-2y÷4----- equation 2

putting the value of x in equation 1

x=450-4y÷2

420-2y÷4=450-4y÷2

2(420-2y)=4(450-4y)

840-4y=1800-16y

840-1800=-16y-4y

-960= -12y

y=80

putting the value of y in equation1

2x+4y=450

2x+4×80=450

2x+320=450

2x=450-320

2x=130

x=130÷2

x=65

Answer:

Step-by-step explanation:

Let total shirts be x.

Then, Striped shirts = 1/9x

Remaining Shirts= 8/9x

Therefore, Printed Shirts = 5/8 × 8/9x

= 5/9x

Remaining Shirts

or

Plain Shirts= x - ( 5/9x + 1/9x )

= 3/9x

Acc. to problem,

Plain Shirts=81

Therefore,

3/9x=81

=> x=81×9/3

=> x=27×9=243

Therefore,

Total Shirts= 243

I hope that helps you

Answer: 54

It’s funny how I asked the same question around 10 minutes ago xD People told me it’s 54 so here you go :D

Answer:

x = 7

y = -3

Step-by-step explanation:

You can add both standard equations to cancel out x, and solve for y.

Because -3x + 3x = 0.

Then substitute the solved y value into either equation to find x.

======================================================

Explanation:

Rule: We cannot divide by zero.

Because of that rule, we'll set the denominator equal to zero and solve for x. This way we can determine the x value(s) that are to be excluded from the domain.

6 - |x-1| = 0

|x-1| = 6

x-1 = 6 or x-1 = -6

x = 6+1 or x = -6+1

x = 7 or x = -5

Those x values are to be excluded from the domain, since they make the denominator zero.

Imagine a number line in which we poked open holes at -5 and 7

Combining everything gets us x < -5; -5 < x < 7; x > 7

Answer:

3.14

Step-by-step explanation:

Given that:

Mean weight (m) = 79 ounces

Population standard deviation (s) = 13.1

Sample size = 47

Maximal margin of error associated with 90% confidence interval.

The margin of error is given by:

Zcritical * (standard deviation / sqrt(sample size)

Z critical at 90% confidence interval = 1.645

Hence,

Zcritical * (standard deviation / sqrt(sample size)

1.645 * 13.1 / sqrt(47)

1.645 * (13.1 / 6.8556546)

1.645 * 1.9108313

Hence, the margin of error is :

3.1433174885

= 3.14

Answer:

fhgjhkjl;

Step-by-step explanation:

free points

its the third one

Given the annual deposit amount and annual interest rate, future value of  the annuity in the given period of time is $283,208.03.

Annuity is simply a mechanism to create substantial amount in future by making relatively very small periodic payments up until maturity.

It is expressed mathematically as;

F = P × (( (1+r)^(nt) - 1 )/r)

Given the data in the question;

Plug the given values into the equation above and solve for A.

F = P × (( (1+r)^(nt) - 1 )/r )

F = 2500 × ( ((1 + 0.08 )^(1×30) - 1 ) / 0.08 )

F = 2500 × (( (1.08 )³⁰ - 1 ) / 0.08 )

F = 2500 × ( 10.06265688 - 1)/0.08 )

F = 2500 × ( 9.06265688/0.08 )

F = 2500 × 113.28321111

F = $283,208.03

Given the annual deposit amount and annual interest rate, future value of  the annuity in the given period of time is $283,208.03.

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Answer:

26.183 ft^3

Step-by-step explanation:

Step one:

given

cone

height 5 feet and

radius of its base 5 feet

Required

The volume

Step two:

the formula for the volume of a cone is

v=1//3πr^2h

substitute

v= 1/3*3.142*5*5

v=78.55/3

v=26.183 ft^3

Answer:

The point with coordinates (-3,4) is located in quadrant II. The point with coordinates (-4,0) is located on the x-axis. The point with coordinates (0, -5) is located on the y-axis.

Answer:

in the upper right Quadrant.

Step-by-step explanation:

I hope this helps

Answer:

T(1,0)

Step-by-step explanation:

Answer:

Linear

Step-by-step explanation:

You can simplify the equation by distributing the 9 in:

y = 18x  ⇒  And this equation is indeed linear

So, that means that y = 9(2x) is linear

Hope this helps! :)

y = 9(2x) is a linear function as the function given exactly one output for one input.

Given that,
To determine whether the given expression is a linear function or nonlinear function,

Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.

Here,
The given function y = 9(2x)
Simplifying the given function,
y = 18x
Above relation shows that y has linear relationship with x,

Thus, y = 9(2x) is a linear function as the function gives exactly one output for one input.

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Answer:

I love baby Yoda.

Step-by-step explanation: His little blushies, his cute little smol body, his yawns and his kawaiiness in general makes you love him. You unconsciously go awwww <3

Answer:

Baby Yoda is indeed very cute

Step-by-step explanation:

They did a very good job with the CGI in the Mandalorian and baby Yoda deserves all the love it is given