A dog walking along some train tracks meets a train every 4 minutes and the train catches up the dog every 12 minutes. Find the value of x if the trains leave the endpoint of the route every x minutes.

Answers

Answer 1

Answer and Step-by-step explanation:

Dog meets the train in = 4 minutes

Train catches up the dog in = 12 minutes

Let x be the time when train leave the route,

Train catch up the dog in 12 minutes, the endpoint of route is x and the dog meet up the train in 4min, so the equation becomes:

                       12 - x = 4

               To find out the value of x, subtract 12 from both sides, we get

                        x = 4 – 12

                         -x = -8

Which gives x = 8, when train leaves the endpoint of route.


Related Questions

The model below can be used to find the quotient of one over two divided by one over eight. What is the quotient?

Answers

Answer:

The answer is 0.25

Step-by-step explanation:

I hope this helps please rate me and like me.

Answer:

0.25 or 1/8

Step-by-step explanation:

I had your question in a quiz so i understand your troubles I hope this helps.

What is the answer to x to the zero power

Answers

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{1}}}}}[/tex]

Step-by-step explanation:

The value of the term having the index 0 equals to 1.

So, [tex] \sf{ {x}^{0} }[/tex] = 1

Hope I helped!

Best regards! :D

I am a three digit number. I am greater than 312 but less than 348. The digit in my tens place equals 5+2. The sum of my digits is 18. What number am I?

Answers

the answer would be 378

4(1+9x) simple fie for me please

Answers

Answer:
4+36x

Process:
4(1+9x)
Multiply 4 by the parentheses
=4*1+4*9x
=4+36x

I hope this helped! If it did, a brainliest would be much appreciated :)

Select the sign of inequality that will make the following statement true.

|-5| __ 0



=

Answers

Answer:

Step-by-step explanation:

The double bar around -5 is absolute value. It means any number will turn positive

|-5| ? 0

5 ? 0

5 ≥ 0

what the simplify form for –3(x + 3) + 4x

Answers

Answer:

x - 9

Step-by-step explanation:

First, distribute:

-3x - 9 + 4x

Then, simplify (add up x):

x - 9

And we're done ^^

Answer:

-3x -9 +4x

-3x + 4x - 9

x - 9

The answer is x - 9

you multiply -3 by x - 3

And there you go .

n-6m-8 for n help! please

Answers

Answer:

n=6m+8

Step-by-step explanation:

we hav to get n by itself

so start easy and add 8 to theother side

n-6m=8 then take 6m and add it the other side

n=6m+8 and there you go

Answer:

Step-by-step explanation:

n - 6m = 8

n = 8 + 6m

The expression 1/x+y is equal to which quantities

Answers

Step-by-step explanation:

exponents is the awnser

What does this equal?

Answers

Answer:

87/100

Step-by-step explanation:

Convert the decimal number to a fraction by placing the decimal number over a power of ten. Since there are

2

numbers to the right of the decimal point, place the decimal number over

10

2

(

100

)

. Next, add the whole number to the left of the decimal.

A square tile has a side length of 10 cm what is the area of the tile

Answers

Answer:

Area = a²

= 10²

= 100

Step-by-step explanation:

Answer:

100 cm 2

Step-by-step explanation:

Area of square = s ^ 2

                         = 10 ^ 2

                         = 100 cm square

Calculate the standard deviation of the volume of water at a temperature of 25°C.

Answers

Answer:

0.01

Step-by-step explanation:

Water is non viscous liquid and it has less density. The measure volume of water is 10.03 ml at 25 degree Celsius which is used to identify the standard deviation of the water.

Average volume of water 10.03ml.

Standard deviation is 0.0001 + 0.0001

Standard deviation is [tex]\sqrt{0.0002}[/tex]  = 0.01.

Liz has 72 stamps in her collection. Risa, who just started her collection, has 9 stamps. Liz’s collection is how many times larger than Risa’s?

Answers

Answer:

8× (8 times)

Explanation:

For this question, divide.

72 ÷ 9 = 8.

Your answer will be 8.

Answer:

8 times as many

Step-by-step explanation:

8x9=72

Point M is the midpoint of AB. The coordinates of point A are (-6, 1) and the coordinates of M are (-3,2).
What are the coordinates of point B?
The coordinates of point B are

Answers

Answer:

Let B(a,b) be x1, y1

A(-6,1) be x2,y2

midpoint M(-3,2) be (x,y)

using midpoint formula

(x,y)= [(x1+x2)/2, (y1+y2)/2)

(-3,2) = [(a-6)/2, (b+1)/2}

comparing corresponding value

-3 = (a-6)/2                           (b+1)/2 = 2

-6= a-6                                  b+1=4

a=0                                         b=3

coordinates of B = (0,3)



1. Order each group of
numbers from least to
greatest:
9,616
9,016 9,916 9.916.1


Answers

numbers from least - to - greatest

9,0169,6169,9169,916.1

hope that helps !

HELP PLEASE
I need help ASAP

Answers

Answer:

1032

Step-by-step explanation:

Add. (f + 3) + (2f + 8)

Answers

Answer:

3f +11

Step-by-step explanation:

[tex](f + 3) + (2f + 8)[/tex]

Open the bracket

[tex]f + 3 + 2f + 8[/tex]

Group like terms

[tex]f + 2f + 3 + 8 \\ [/tex]

Simplify

[tex]3f + 11[/tex]

Answer:

it should be 3f+11

Step-by-step explanation:

Clear selection
2 points
3. Stephanie can run one lap around a track in 5 minutes. Lisa can run one
lap in 6 minutes. If they start running at the same time, how long will it be
until they complete a lap together?
11
30
12
6

Answers

Answer: If they start running at the same time, then it will take 30 minutes until they complete a lap together.

Step-by-step explanation:

Given:  Stephanie can run one lap around a track in 5 minutes. Lisa can run one  lap in 6 minutes.

If they start running at the same time, then the time they will take to complete a lap together = LCM (5,6)

prime factorization: 5=5   , 6 =2 x 3

So, LCM(5,6) = 5 x 2  x 3 = 30

Hence, it will take 30 minutes until they complete a lap together.

Solve for p in the literal equation 8p+5r=q

Answers

8p + 5r = q

We have to isolate the variable  p. Let's begin by subtracting 5r from both sides.

8p = q - 5r

Divide both sides by 8

p = [tex]\frac{q - 5r}{8}[/tex]

[tex]8p + 5r = q[/tex]

Subtract 5r on both sides of the equation.

[tex]8p = - 5r + q[/tex]

Divide both sides of the equation by 8.

[tex]p = \frac{ - 5r + q}{8} [/tex]

Service Costs are part of maintaining your car. It's that time again. You will need an oil change costing $45, four new tires costing $89.95 each, and 2 new windshield wipers costing $7.95 each. What is the total cost of your service cost?

Answers

Answer:

420.7

Step-by-step explanation:

How do
You Write 67 in expanded form

Answers

Answer:

sixty seven

Step-by-step explanation: i think

Answer:

60+7

Step-by-step explanation:

AREA OF THESE TWO POLYGONS?

Answers

Answer:

Step-by-step explanation:

Nancy decides to roll a dice three times. What is the probability that she will roll all even numbers?

Answers

Given:

Nancy decides to roll a dice three times.

To find:

The probability that she will roll all even numbers.

Solution:

If a dice is rolled, then the possible numbers are

Total number = {1,2,3,4,5,6} = 6

Even numbers = {2,4,6} = 3

Odd numbers = {1,3,5} = 3

Probability of getting an even number [tex]=\dfrac{\text{Even number}}{\text{Total numbers}}[/tex]

[tex]P(\text{Even})=\dfrac{3}{6}[/tex]

[tex]P(\text{Even})=\dfrac{1}{2}[/tex]

So, probability of getting all even numbers is

[tex]P(\text{All even})=P(\text{Even})\times P(\text{Even})\times P(\text{Even})[/tex]

[tex]P(\text{All even})=\dfrac{1}{2}\times \dfrac{1}{2}\times \dfrac{1}{2}[/tex]

[tex]P(\text{All even})=\dfrac{1}{8}[/tex]

Therefore, the required probability is [tex]P(\text{All even})=\dfrac{1}{8}[/tex].

The probability that Nancy will roll all even numbers will be:

"[tex]\frac{1}{8}[/tex]".

Probability

According to the question,

Number of times dice rolled = 3

Total numbers = {1, 2, 3, 4, 5, 6}

                        = 3

Even numbers = {2, 4, 6}

                        = 3

Odd numbers = {1, 3, 5}

                       = 3  

Now,

The probability of getting even numbers will be:

= [tex]\frac{Even \ numbers}{Total \ numbers}[/tex]

= [tex]\frac{3}{6}[/tex]

= [tex]\frac{1}{2}[/tex]

hence,

The required probability be:

= P(Even) × P(Even) × P(Even)

= [tex]\frac{1}{2}\times \frac{1}{2}\times \frac{1}{2}[/tex]

= [tex]\frac{1}{8}[/tex]

Thus the above answer is correct.

Find out more information about probability here:

https://brainly.com/question/24756209

complete the missing number sequence.

1/4, 1/2,___, 1, 11/4​

Answers

Answer:If the last number is 1¼ then the answer is ¾

Step-by-step explanation:

From one fraction to the other there is a difference of ¼

¼+¼=½

½+½=¾

¾+¼=1

1+¼=1¼

To identify the difference between the fractions you should get the LCM of the denominator which is 4 then you change all the fractions and make them have the same denominator

½ ,²/4 ,_ ,⁴/4 ,⁵/4

Then work with the numerator

1 , 2, _ ,4 , 5,

The dash is to be filled with 3

So your answer is ¾

negative three times a number increased by 7 is less than-11

Answers

Answer: false.

Step-by-step explanation: the equation is as follows:

-3 + 7 = 7 - 3, which = 5

-3 times 5 = -15, making the statement false.

Answer:

6

Step-by-step explanation:

-3x+7<-11

-3x<-11-7

-3x<-18

X<-18/-3

X<6

What is the range?
8,10, 60, 3, 5, 13, 12, 40, 8

Answers

answer: the range is 57
explanation: to find the range you subtract the smallest value from the largest value in the set

Describe the transformation of the graph of the parent function y = √x for the function y = √x + 7 + 5.

Answers

Answer:

First part 7 units left and 5 units up

The 2nd part is v ≥-7 and the third part is Y≥5

Step-by-step explanation:

Done it in Edge and got it right :)

The transformation of parent function [tex]y = \sqrt{x }[/tex] to [tex]y = \sqrt{x + 7} + 5[/tex] is first translated 7 units left and then it translated 5 units up.

What is function?"It defines the relation between input and output values.""In function, for each input there is exactly one output."What is transformation of function?

"It is nothing but mean transforming the function from one form to another."

For given question,

We have been given a function [tex]y=\sqrt{x}[/tex]

We need to describe the transformation of the graph for the function [tex]y = \sqrt{x + 7} + 5[/tex]

We know, if f(x) is transformed to f(x + a) then it means function f(x) is translated 'a' units left.

So, [tex]y=\sqrt{x+7}[/tex] means the function [tex]y = \sqrt{x}[/tex] is translated 7 units left.

We know, if f(x) is transformed to f(x ) + a then it means function f(x) is translated 'a' units up.

So, [tex]y = \sqrt{x + 7} + 5[/tex] means the function [tex]y = \sqrt{x + 7}[/tex] is translated 5 units up.

Therefore, the parent function [tex]y = \sqrt{x }[/tex] is first translated 7 units left and then it translated 5 units up.

Learn more about the transformation of the graph of the function here:

https://brainly.com/question/11990011

#SPJ3

Order from least to greatest 1 1/4, 1 2/3, 11/12

Help please, quick!

Answers

11/12, 1 1/4, 1 2/3 i’m pretty sure that’s correct that’s my logic

Answer:

[tex]\frac{11}{12}[/tex],[tex]1\frac{1}{4}[/tex],[tex]1\frac{2}{3}[/tex]

Step-by-step explanation:

It wants you to take these 3 fractions and arrange them from least to greatest.

The first thing I did was look for the fraction with no number in front of it.

[tex]\frac{11}{12}[/tex] is the only fraction that has no numbers in front of it. So

The second thing I did was look for the fraction that had the biggest number in front of it. I see that the remaining fractions have the same number in front.

So, I drew 2 circles. 1 of the circles I shaded in and the other I split into 4 equal halves. I shaded in one of the halves. These 2 circles represent [tex]1\frac{1}{4}[/tex].

The next thing I did was draw 2 more circles. I shaded in one of them and slit the other one into 3 equal halves. I shaded in 2 of the halves. These 2 circles represent [tex]1\frac{2}{3}[/tex].

Last, look at the 4 circles and ask yourself which one is the most shaded in. If you said [tex]1\frac{2}{3}[/tex] you are correct. This fraction is the biggest. Meaning that [tex]1\frac{1}{4}[/tex] is in the middle.

How do you do this question?

Answers

Step-by-step explanation:

The marginal totals are the sum of each row and column.

For example, the total number of sophomores is 120 + 302 = 422.

See picture of table with marginal totals filled in.

when 560000 is written in notation, what is the power of 10 a 4, b 5, c 6, d 7

Answers

Answer:

a : 4

Step-by-step explanation:

56*10^4 = 56*10000=560000

The output from a statistical software package indicates that the mean and standard deviation of a data set consisting of measurements are ​$ and ​$​, respectively. a. What are the units of measurement of the variable of​ interest? A. Units B. Dollars Your answer is correct.C. Single measurements

Answers

Answer: dollars

Step-by-step explanation:

Mean means average and it's calculated by adding the numbers given and then dividing the sum by the amount of numbers that were given.

The standard deviation shows the amount of dispersion or amount of variation of a given set of values. From the question, the only unit of measurement we can see is the dollar sign($).

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