There are 1580 adults and children on a ship. 60% of them are adults. When the ship arrives are harbour, some of the students alight and the percentage of adults remaining on the ship decreases by 20%. What is the ratio of the children to adults remaining on the ship?

Answers

Answer 1

Answer:

379 : 62

Step-by-step explanation:

Let’s gather the info from the problem.

1580 adults and children on a ship.

60% of them are adults.

percentage of adults and students remaining on the ship decreases by 20%

60% of 1580 is 948 so there are 948 adults onboard

leaving the remaining children which is 632

948 Adults

632 Children

Adults decreases by 20% so 758 adults

Children decreases by 20% so 124 children

the ratio is 758:124 simplified would be 379 : 62


Related Questions

A worker on an assembly line packed 156 boxes in 3 hours. At this rate, how many boxes would the worker pack in 7 hours?

Answers

Answer:

364

Step-by-step explanation:

156/3 = 52 boxes/hour

52 boxes x 7 hours = 364

Explain what someone has to do to get a good credit rating.

Answers

Answer:

The key to developing a great credit score is not a formula, but there are certain general recommendations that may be followed. Make on-time payments on your debts on a consistent basis. One strategy to ensure that your payments are made on time is to set up automated payments or electronic reminders for your accounts. If you've fallen behind on your payments, get up to date and remain up to date.

Step-by-step explanation:

Hope it helps if this is what you mean;)

Who is correct and why?

Answers

Answer:

hi there i think it is B

Step-by-step explanation:

find the limiting value using L hospital​

Answers

Answer:

  -1

Step-by-step explanation:

The expression evaluates to the indeterminate form -∞/∞, so L'Hopital's rule is appropriately applied. We assume this is the common log.

  d(log(x))/dx = 1/(x·ln(10))

  d(log(cot(x)))/dx = 1/(cot(x)·ln(10)·(-csc²(x)) = -1/(sin(x)·cos(x)·ln(10))

Then the ratio of these derivatives is ...

  lim = -sin(x)cos(x)·ln(10)/(x·ln(10)) = -sin(x)cos(x)/x

__

At x=0, this has the indeterminate form 0/0, so L'Hopital's rule can be applied again.

  d(-sin(x)cos(x))/dx = -cos(2x)

  dx/dx = 1

so the limit is ...

  lim = -cos(2x)/1

  lim = -1 when evaluated at x=0.

_____

I find it useful to use a graphing calculator to give an estimate of the limit of an indeterminate form.

Why is the square root of 25 a rational number?

Answers

Answer:

A rational number can be expressed as a fraction.

√25 = 5 and 5 can be written in the form of a fraction 5/1.

Hope this helps :)

Because it divides out evenly and is not negative

Eva has a points card for a movie theater. She receives 65 rewards points just for signing up. She earns 13.5 points for each visit to the movie theater. She needs at least 200 points for a free movie ticket. Use the drop-down menu below to write an inequality representing vv, the number of visits she needs to make in order to get a free movie ticket.

Answers

Answer:

10

Step-by-step explanation:

200-65= 135

135/13.5=10

Brent leaves school to go home. He walks 10 blocks north and then 6 blocks west. If Brent could walk in a straight line to the school, what is the exact distance between Brent and the school?

Answers

8 BLOCKS :)))

:)))) NO NEED SOLUTION.

Can someone pls help me...

Answers

It is not a function and that is becuase a vertical line would pass through it twice

6457/25 using partial products

Set up using the same way please.

Answers

Answer: 6457/25=258.28

Step-by-step explanation:

Answer:

258.28  Hope this helps! Please mark brainliest it means a lot to me

Step-by-step explanation:

Th=0

H=2

T=5

0=8

tenth=2

hundredth=8

You could get the answer by doing long division/standard algorithm

Help!! You have about 4+ hours to answer!! Help!!

Answers

Answer:

I think I'm doing this right?

Step-by-step explanation:

4.3

----

a. 4.3

b. 4.3

c. 4

Answer:

1. 4.30

2. 4.3

3. 4

Step-by-step explanation:

a. hundredths

4.30 is exactly in between 4.29 and 4.31

a. at the top: 4.31

a. at the bottom: 4.29

a. in the middle: 4.30

b. tenths

4.3 is exactly in between 4.2 and 4.4

b. at the top: 4.4

b. at the bottom: 4.2

b. in the middle: 4.3

c. ones

4 is in the middle of 3 and 5

c. at the top: 3

c. at the bottom: 5

c. in the middle: 4

67 is 0.12% of what number?

Answers

we have 67/x . 100% = 0.12 %

so x = 67.100%/0.12% = 55833,(3) ≈ 56

ok done . Thank to me :>

y/4 − 2 = 9

what does y =

Answers

Answer:

y = 44

Step-by-step explanation:

First, add 2 on both sides to get y/4 = 11, then multiply 4 on both sides to get y = 44.

Hope this helps :)

y/4 - 2 = 9

Turns into

y/4 = 11

Then multiply both sides by 4 to get rid of the division

y = 44

Combine the like terms to create an equivalent expression:
-12-6p-(-2)

Answers

Answer:-2(5+3p)

Step-by-step explanation:

-2(5+3p) trust me this is really simple if you just think about it

1. what is the inverse of f(x) = x+9/10x-1?
a. 10x-1/x-9
b. x-9/10x+1
c. x+9/10x-1
d .2x+9/5x+1



#mathematics

Answers

Answer:

A OPTION IS THE INVERSE OF YOUR QUESTION

find the slope of the line that passes through the following points a(4, -14) b(6, 18) ​

Answers

Answer:

Slope=16

Step-by-step explanation:

solve pls brainliest

Answers

its 4in^3
because its cubed

Answer:

64in

Step-by-step explanation:

v=L×W×H

= 4×4×4

= 16 ×4

= 64in²

A can of crushed tomatoes holds 40 fluid ounces. How can a label designer name the same volume using metric units? Complete the explanation.

The designer can use the ratio 1 fluid ounce ≈ 29.6 milliliters and then multiply:
40 × blank
=
. The designer might decide to convert mL to L and round to the nearest tenth of a liter:
mL ≈
L

Answers

The metric unit of a quantity is simply the unit of measurement of the quantity

The volumes of the crashed tomato cans are 1184 milliliters and 1.184 liters

The volume of the crushed tomato can is given as:

[tex]\mathbf{Volume = 40oz}[/tex]

From the question, we have the following conversion ratio

[tex]\mathbf{1oz \approx 29.6mL}[/tex]

So, the volume in milliliters becomes

[tex]\mathbf{Volume = 40 \times 29.6mL}[/tex]

Multiply

[tex]\mathbf{Volume = 1184mL}[/tex]

To convert the unit to liters, we simply divide the volume by 1000.

So, we have:

[tex]\mathbf{Volume = 1184L \div 1000}[/tex]

[tex]\mathbf{Volume = 1.184L}[/tex]

Hence, the equivalent volumes are 1184 milliliters and 1.184 liters

Read more about metric units at:

https://brainly.com/question/2004114

mitchels room measures 10 inches by 6 inches on a scale drawing. what are the actual measermets of his room (in feet) of he uses a scale of 1 to 24?
width height

Answers

Answer:

20 ft by 12 ft

Step-by-step explanation:

(10 in x 24) / 12 ft = (240 in / 12 ft) = 20 ft

(6 in x 24) / 12 ft = (144 in / 12 ft) = 12 ft

Kevin hiked 4 miles in 135 minutes. Which equation can be used to find how many hours it took Kevin to hike the 4 miles?

Answers

Answer:

135 divided by 4

Step-by-step explanation:

The lines represented by the equations 4y + 4x = 8 and y - x = -2 are
neither parallel nor perpendicular
the same line
perpendicular
parallel

Answers

Answer:

4 y = -4 x + 8    or y = -x + 2

y - x = -2           or y = x - 2

using the standard form for a line   y = m x + b

We see that in one equation m = -1 and in the other m' = +1

this is the condition for perpendicular lines

Which answer choice is NOT equivalent to 4(x + 3)



a. 4x + 12


b. x + 3x + (4 + 3)


c. x + x + x + x +12


d. 2x + 2x + (4 x 3)

Answers

Answer:  b

Step-by-step explanation:

Combine the terms after removing the parentheses.

Reference equation: 4x + 12

a.  4x + 12

b.  4X +7

c.  4x + 12

d.  4x + 12

emma makes 21 laps during a 5 minute song how many laps per minute did emma make how do I show my work?

Answers

Answer:

4.2 laps per minute

Step-by-step explanation:

21laps/5min = 4.2laps/1min

Can someone please tell me the answer to this?

Answers

Answer:

look at the picture ..........

Answer:

Step-by-step explanation:

x × [tex]x^{5}[/tex] = [tex]x^{6}[/tex]

[tex]x^{2}[/tex] × [tex]x[/tex] = [tex]x^{3}[/tex]

[tex]\frac{x^6}{x^3}[/tex]= x³

Geometry help, please.

Answers

Answer:

c=20

Step-by-step explanation:

Use Pythagorean Theorem.

a squared plus b squared equals c squared.

12^2 + 16^2 = c^2

Now rearrange for c.

c = [tex]\sqrt{(12^2+16^2)}[/tex]

The answer is 20.

Given the graph of y=f(x), shown as a green curve, drag the green movable points to draw the graph of y=−f(x). When the green line is moved a red dashed line will appear where the original graph appeared for reference. Notice that you can control the positioning of the reflective function with the coordinate labeled "Drag Function" and control the width of the reflection with the coordinate labeled "Control Width."

Answers

The resulting function is presented in the image attached below.

In this question we know the graphic of a function and we must draw a new function which is the reflection of the original one around the x-axis. Mathematically speaking, a reflection a around the x-axis is defined by the following operation:

[tex]f'(x) = f(x) - 2\cdot [f(x) - 0][/tex]

[tex]f'(x) = - f(x)[/tex] (1)

Which means that the reflected function is equal to the original function multiplied by -1.

Now, we proceed to represent the reflected function graphically.

We kindly invite to check this question on reflections: https://brainly.com/question/15487308

Andre road his bike at a constant speed he rode one mile in 5 minutes which of these equations represent the amount of time t (in minutes) that it takes him to ride a distance of d miles?
a:t=5d
b:t=1/5d
c=d+4
dt=d-4

Answers

Answer: Hello!

Time taken to drive 1 mile = 5 minutes. Now we have to find the amount of time t (in minutes) taken by him to right distance d so we can again use same formula. Since the answer will be equation A. t=5d.

A. t=5d

Step-by-step explanation:

Mark me brainest please. Hope I helped! Hope you make an 100%  Anna♥

Can someone help me please

Answers

Answer:

A

Step-by-step explanation:

4×-12

Answer is letter A

hope it help^^

Sam has 5 dogs and 2 cats. What is the ratio of cats to dogs?

Answers

Answer:

2:5

Step-by-step explanation:

2 cats per 5 dogs

Help me
pleaseeee
i need help

Answers

Answer:

A=2, B=28

Step-by-step explanation:

A:6:7

8:24:B

A=8÷4

 =2

B=7×4

 =28

Answer:A=2

B=28

Step-by-step explanation:

14
The points A, B and C lle on a straight line.
The length of AB is equal to the length of BC
What are the coordinates of point A?
*C(5,6)
*B12, 1)

Answers

Answer:

(-1,-4)

Step-by-step explanation:

First, you take the x coordinate of C and subtract it from the x coordinate of B. 5-2=3. You then take the 3 and subtract it from the x value of point B which is 2 and 2-3=-1 which gives us the x coordinate of point A -1. then you take the Y coordinate of C and subtract it from the Y coordinate of B. 6-1=5. You then take the 5 and subtract it from the y value of point B which is 1 and 1-5=-4 which gives us the y coordinate of point A -5. And that gives you (-1,-4)

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