Three boys were running around the track. The first can run 1 lap in 15 min. The second can run 1 lap in 25 min. and the third can run a lap in 10 min. If the boys start running at 12:45, what time will all 3 boys pass each other again?​

Answers

Answer 1

Answer:

At 15:15

Step-by-step explanation:

Given,

the 1st boy can run a lap in 15 minutes

the 2nd boy can run a lap in 25 minutes

the 3rd boy can run a lap in 10 minutes

Now if they start running at 12:45,they will meet after the time which will be equal to the L.C.M. of their time need to run a lap.

[tex]L.C.M.[/tex] of 15,25 & 10 = 150

So,they will pass each other after 150 minutes or 2 hours & 30 minutes.

If we add it with 12:45 we'll get 15:15 or 3:15 pm


Related Questions

Simplify.
7/11 -3/11

Answers

Answer:

4/11

Step-by-step explanation:

7/11-3/11

=>(7-3)/11

=>4/11

Choose which property of equality is demonstrated moving from step a to step b. a. If b = 3, and m = 5, and y = mx + b then, b. y = 5x + 3

Answers

Answer:

add the = problome

Step-by-step explanation:

The property of equality is demonstrated moving from step a to step b is linear.

What is a linear equation?

The linear equation is defined as the equation having a degree of one or the power of the variable will be one. The linear equation is represented by y = mx + c. Here y is the variable, m is the slope and, c is the intercept.

Given that  b = 3, and m = 5, and y = mx + b then, b. y = 5x + 3. The equation can be formed as below:-

y = mx + c

y = 5x + 3

Therefore, the property of equality is demonstrated moving from step a to step b is linear.

To know more about a linear equation follow

https://brainly.com/question/2030026

#SPJ2

What is the opposite value of -(-9) ?

Answers

Answer:

9

Step-by-step explanation:

two negatives make a positve

Answer:

-9

Step-by-step explanation:

Whenever you are given an expression, first look at it. Since there are two negative signs in the equation, they cancel out, leaving a nine. The opposite value most likely means that the sign is the opposite, so you end up with -9 as the value.

1. Select all drawings in which a corresponding height h for a given base b is correctly identified ​

Answers

Answer:

A, B, D, F

Step-by-step explanation:

To determine which of the drawings are well labelled according to their corresponding height (h) for a given base, recall the following:

1. Base of a triangle could be any of the 3 sides of a triangke.

2. Height of a triangle is the perpendicular distance from the corner opposite the base to the base.

3. The height of a triangle could be indicated from outside the triangle.

Going by this 3 criteria, therefore, the following drawings can be said to be well labelled and correctly identifies by their corresponding height with respect to their bases:

A, B, D, F

MULTIPLE CHOICE QUESTION
If QR = 2x + 3 ad RS = X - 1 and
QS = 5x - 14, find the length of QS.

Answers

Answer:

26

Step-by-step explanation:

x = -3y + 1
-3x - 3y = -15​

Answers

Answer:

X = 3 x − 14

y = − x + 5

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

I hope this helps!

11. Higher Order Thinking Using what you know
about angle pairs formed by parallel lines and a
transversal, how are 21, 22, 23, and 24 related
in the trapezoid? Explain.
3

Answers

Answer:

m∠1 + m∠3 = m∠2 + m∠4

Step-by-step explanation:

In the figure attached,

In the given trapezoid if two sides AB and CD are parallel and AD is a transverse,

m∠1 + m∠3 = 180°

Similarly, if AB and CD are parallel and BC is a transverse,

m∠2 + m∠4 = 180°

Therefore, m∠1 + m∠3 = m∠2 + m∠4 is the relation between these angles.

WILL GIVE BRAINLIEST!!!!!!!!!!! PLS ANSWER ASAP!

Which diagram represents rx ◦ RO,180°?

A. First option

B. Second option

C. Last option

Answers

It’s the second option

Answer:

the second option

Step-by-step explanation:

i got this question before

a cell phone company charges $40 per month plus $35 activation fee how much will a years worth of service cost

Answers

Answer:

515.

Step-by-step explanation:

40 x 12 = 480

480 + 35 =515

Answer:

The answer would be $515

Step-by-step explanation:

40x+35=t

40(12)+35=t

40 times 12 = 480

480 + 35 =515

Identify which equation represents a line parallel to the given equation 2x+5=25 asap please

Answers

Answer:

10

Step-by-step explanation:

2x(+5)=(25)< subtract 5 to each side

2x=20<divide 2 to 20

x=10

Simplify 12+5 (4x-6)

Answers

20x -18 the answer will be
Distribute the 5 to the 4X -6 in the parentheses to get 20x-30 so you should have 12+20x-30 and just combine the -30 with 12 to get -18 and you have -18+20x I hope this helps!! ^_^

Determine whether the equation below has a one solutions, no solutions, or
an infinite number of solutions. Afterwards, determine two values of x that
support your conclusion.
HELP PLEASE

Answers

Answer/Step-by-step explanation:

The equation, [tex] \frac{20}{x} = -5 [/tex] has one solution, x.

The value of x that will make the equation true, that is the number we can substitute for x into the equation that will make what we have on our left side equal to what we have on our right side is -4.

Substitute -4 for x in the equation and simplify:

[tex] \frac{20}{-4} = -5 [/tex].

Simplifying the equation:

[tex] -5 = -5 [/tex] (this is true).

A value of x that can make the equation false is 4.

Thus, replace x with 4, then simplify.

[tex] \frac{20}{x} = -5 [/tex]

[tex] \frac{20}{4} = -5 [/tex]

[tex] 5 = -5 [/tex] (false. 5 ≠ -5)

What is the area of the figure below?
6 in.
58 in2
63 in 2
8 in.
61 in 2
5 in.
4 in
53 in 2
8 in.
6 in.
A

Answers

Answer:

The answer is 58 In2

you can take apart some of the parts and multiply them, it may be easier

Answer:

I believe it is acutally 53inches

3) Is the following a function?
(-4, 10) (10,-6) (8, 10) (2,-9) (0,7)

Answers

Answer:

Yes

Step-by-step explanation:

A function is when there is no two of the same domain.

The Domain is the first coordinate which is x.

Hope This Helps :)

Answer:

No

Step-by-step explanation:

No, this is not a function beacuse - 4 and 8 both have the same image 10 and a function is a relation in which every element has one image but this condition doesn't satisfy the definition. So, it is not a function.

Function h is a transformation of the parent exponential function, f(x)=2^x. h(x)=-3*2^x Which statement is true?

A. Function h is a vertical translation of function f. B. Function h is a reflection and a dilation of function f. C. Function h is a reflection and a translation of function f. D. Function h is a horizontal translation of function f.

Answers

Answer:

Function is a reflection and dilation of function f.

Step-by-step explanation:

A reflection gives the mirror image of function.

A function can be reflected about an axis by multiplying by -1.

To reflect function about the x-axis, multiply f(x) by -1 to get -f(x).

The correct option is: B. Function h is a reflection and a dilation of function f.

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

The functions are:

[tex]f(x) = 2^x[/tex]

[tex]g(x) = -3 \times 2^x[/tex]

It can be seed that g is f multiplied by -3.

The multiplication by a constant means that a dilation happened.Since the constant is negative, it means that a reflection also happened.

In the image at the end of this question, it can be seen that the g, the blue graph, is a reflected and dilated version of f, the red graph.

Thus, the correct answer is:

B. Function h is a reflection and a dilation of function f.

A similar problem is found at https://brainly.com/question/17673148

a. pattern:
b. recursive equation:

Answers

Answer:

Pattern

Step-by-step explanation:

It is a pattern because on X it goes down one. On Y it goes down 3.

Change the repeating decimal to a fraction:
0.376376376...

Answers

Answer:

Answer is 3/4

Step-by-step explanation:

pls help
Lcm of 4 and 15?
least common multiple

Answers

Answer:  60

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

Explanation:

Multiply the two values to get 4*15 = 60

Then divide by the GCF 1 to get 60/1 = 60. The GCF being 1 means the result hasn't changed.

------

Another example would be: "Find the LCM of 6 and 8". We would first do 6*8 = 48, then divide by the GCF 2 to get 48/2 = 24. The LCM of 6 and 8 is 24.

Answer:

60

Step-by-step explanation:

How are linear equations and linear inequality similar and different?​

Answers

Answer:

The graph of linear inequalities include a dashed line if they are greater than or less than but not equal to. Linear equations, on the other hand, include a solid line in every situation. Moreover, linear inequalities include shaded regions whereas linear equations do not.

Step-by-step explanation:

Number 63 please help I’m desperate

Answers

8,45=845/100 dür.

[tex]\frac{845}{100} .\frac{1}{100}[/tex]

that is;

845/100000

namely

0,000845

My answer to the question is 0.0845.

You just need to move 2 times to the left...

Write an equation of the parabola in vertex form.

Answers

Answer:

f (x) = a(x - h)2 + k, where (h, k) is the vertex of the parabola. ... When written in "vertex form": • (h, k) is the vertex of the parabola, and x = h is the axis of symmetry.

Answer:

y =0.25(x-4 )^{2}-1

Step-by-step explanation:

The formula of vertex form is as follows:

Y = a(x-h)^2+k

h = the x value for the vertex (in this case it is 4)

k = the y value for the vertex (in this case it is -1)

If you input these into the equation you are left with:

Y = a(x-4)^2-1

To find 'a' I just entered this equation into the Desmos calculator and messed around with the value until the y-intercept was (8,3)

I hope this was able to help! ^_^

Pls help ASAP, will give barinliest

Answers

Answer:

a

b

d

Step-by-step explanation:

im to lazy but subtract 180 and the others are equal just compare small angles to big ones and should equal 180

Answer: A, C, and D are correct

In the expression , dividing by is the same as... O multiplying by 5 O multiplying by O multiplying by O dividing by​

Answers

Answer:

B multiplying by 3/2

Step-by-step explanation:

Answer:

1 1/5

Step-by-step explanation:

1) 4/5 \ 2/3

2) 4/5 X 2/3

3) Simplify the 4 and 2

* 2/5 x 3/1 = 6/5 = 1 1/5[tex]\frac{4}{5}[/tex]

ANSWER

90.2844097979 to 3 decimal places

Answers

Answer:

90.284

Step-by-step explanation:

The 4th decimal place is 4 which rounds down (as it is less than 5) so it is 90.284

Hope this helped!

Answer:

The answer is 90.284

Step-by-step explanation:

The two numbers after the three decimal numbers (4,0) are not up to “5”. Meaning that they are just zero.

3. If you are paid $9.00 per hour (net of all payroll deductions), how much time is required
to earn enough to purchase a lunch that costs $5.70 at a local fast food restaurant? (in
minutes)

Answers

Answer:

38

Step-by-step explanation:

$9/hour = 15 cents per minute. $5.70/0.15 = 38 minutes.

Answer:

38 minutes

Step-by-step explanation:

6 Solve for x. (Round to the nearest thousandth.)
22 = 35x+12

Answers

22-12=35x
10=35x
10/35=x
2/7=x
your answer is
x= 2/7

Rearrange the equation below to solve for y ax + 6y = 24​

Answers

y = 4 - ax / 6

ax + 6y = 24

ax - ax + 6y = 24 -ax

6y / 6 = 24 / 6 - ax / 6

y = 4 - ax / 6

Dominic is driving on a long road trip. He currently has 10 gallons of gas in his car.
Each hour that he drives, his car uses up 1.25 gallons of gas. How much gas would be
in the tank after driving for 3 hours? How much gas would be left after t hours?

Answers

(1.25)t=gallons    so 1.25 times the ammound of hours

Which of the following equations is not written in general form?
2y = 7x - 19
2x + 5y - 9 = 0
5y - 9 = 0

Answers

Answer:

2y = 7x - 19

Step-by-step explanation:

can you accept my invite plz i wanna chat

and is it right

4. Simplify
(x^-5x+1)-(-2x+3x-7)

Answers

Answer:

Ur answer should be 2.

Other Questions
3u+5u=64What is the simplify of this What does u Which of the following exercises should be included during warm-up and cool-down times?walkingstretchingsprintingweightlifting Which event might occur if the populations of producers in an ecosystem became unstable? A) The direction of energy in the food web would change directions and flow toward the producers. B) Decomposers would become the primary energy source. C) The number of primary consumers would decrease dramatically. D) The energy flow into the food web would decrease or increase along with changing populations of producers. THANK YOU !!! :-) What is the solution to 4x-8=12 please explain. Nosotros no somos estudiantes del seor Vargas. WILL GIVE BRAINLET !!!2 1/12 + 4/12 ( show how u her the answer ) The height of a painting is 48 ronded ft. Between which two consecutive whole numbers is 48 rounded Robby ate 4 potato chips. Jimmy ate p times as many potato chips as Robby. Which expression shows how many potato chipsJimmy ate?OA. 4:POB. 4-pOC. 4+pOD 4xp a bus is traveling at a constant speed. if the bus travels 15 1/2 miles in 1/3 of an hour how many miles will the bus travel in one hour? Find the derivative F(x)=(5x+3)(2x^2+1) Which list shows all the doctor pairs of 64 Name the 4 elements that can make up a medical term. Which of the following is an appropriate thesis statement using the limited subject + precise opinion formula? 1 Men are people. 2 Pets are cool. 3 Group skydiving is surprisingly safe. 4 Libraries are full of books and other reading material. how did the end of the international slave trade impact the us How to simplify this problem: (4c^4)^3 Styles Researchers asked 131 college students to listen to a recording of a 20-minute introductory physics lecture. The students were randomly assigned to a male or female lecturer, each of whom read an identical text. While the lecture was playing, a computer displayed what the volunteers were told was a photo of the lecturerwho was highly attractive in some cases and not as fetching in others. (Earlier volunteers had rated some photos of possible lecturers for attractiveness, enabling the researchers to pick the best- and worst-looking.) Taking notes was barred. After the lecture, participants got a 25-item quiz on the material. For those with the attractive instructor, the average score was 18.27; for those with an unattractive one, the average was 16.68. That gap isn't huge, but it is statistically significant, the researchers said. After being quizzed on the material, participants were asked to evaluate the lecturers. Sure enough, students found the attractive instructors more motivating, easier to follow and possessed of greater health, intelligence and competence. They also generally agreed about the attractiveness of the lecturers. 1. PUT YOUR NAME AT THE TOP OF THIS DOCUMENT2. What is the independent variable in the study? 3. What is the dependent variable in the study4. How did the researchers "operationally define" attractiveness? 5. The results were said to be "statistically significant. What does that mean? 6. Give one possible confounding variable in the study. 7. If the researchers stated that the results had generalizability", what would that mean? 8. In the context of the study, how would the researchers "debrief" the participants?9. Give one ethical consideration that would fit this study. (Refer to APA Ethical Guidelines on Blackboard)10 How would another research check the reliability of this study?11. If Hawthorne Effect affected the results of the study, what happened? Find the absolute value and solve the problem|-23| + |-15| What is the value of x in the equation 3x-4y=65, when y=4?x=134O x=21 / 3O x=23X=27 4a-2b+40 when a=2 and b=7 Seventeen members of Tim's family are going to an amusement park during the week of their family reunion. Adult tickets cost $34 each and child tickets cost $31.50 each. If the total cost for admission to the part is $558, how many adults went to the park? a 7 b 8 c 9 d 10